Pro comp 360 bbc heads. The heads feature one .

Pro comp 360 bbc heads they sell for $1199. 10@118mph 9-30-22 10. 880. The heads is advertised as a 320 cc runner, I don't have the exhaust size here yet. The 320 heads with some blending will go 360 out of the box. 31 Exhaust Flow. May 18, 2015 · I am building a . Misaligned ports, problems with the guides and even in some instances bolt holes weren't drilled. 1969 Chevelle 300 454! finally, 29-3200 stall, TH400 and moser 12 bolt 3. same as BBF plus will require pushrod clearencing require special head bolts and offset rockers. t. We are starting one right now for a customer but on the LS platform with a Noonan billet block/heads/intake and the f3-136 goal is very minimum2500hp. i found that if you find the shortest 3/8 drive 5/8 plug socket, then 1/4 drive 11/32 socket and weld the 11/32 in the 3/8 , it makes changing a lot easier 125cc x . I recently went to the machine shop to freshen up the heads and they told me that several of the guides were worn and the bill would be in the $700 range. 89@102mph 1/8 mile 6-24 L-29 461 BBC 11. 9- 386 368 268 1. These heads sell for $699. Please select a quantity of 2 on the following page to order a pair of cylinder heads FLOTEK Recommended Setup: Header – Based on Chassis-2 1/8” Rocker Arms – Isky Roller Rockers 204-96 1. it went low 7s in a 4400lb street truck and a pretty big fella behind the wheel. 360cc Intake Runners 125cc Combustion Chamber Intake flow is 404 CFM at . 750” x 2. if you use pro comp rockers they are only . R. I do belive that RHS has some big block Pro Line, or Pro One heads or some such too but not sure. 2011 Chevy Colorado crew cab 5. Only at . . But there Oct 21, 2009 · The ProComp 360cc CNC BBC heads flow more or just as good as the Edelbrock Victor series heads. 65@125mph 406 with home ported Dart 215 heads. Made peak at 8400rpm and good to 9200. 700 lift. I believe I paid $1500 for the heads complete and shipped to my door which at the time was Dart 360cc BBC Aluminum Cylinder Head Part# 16500000 thru 16634136 Material: 355-T61 alum alloy Comb Chambers: 121cc or 141cc w / CNC) Intake Valve Dia: 2. And I find that odd that many other porters/head guys really like RHS, Like Abbott and Gary. 850 in. 88 valve upgrade from the 2. 3. I am sure the heads are a splash of a quality USA made head but from there who knows. 585 offset and need to be . 740 to except the largest roller springs Bronze Valve Guides Feb 14, 2019 · For us that dont have Facebook is he the only chinese supplier to all fancy head companys like pro comp, speedmaster, Pro maxx, patriot, flotek etc etc. 25 primary headers 4" collectors its one of the worst combinations of parts I've ever seen it was in a 3000lb 67 Chevelle race car and ran a best of 11. 740 to except the Jun 15, 2020 · An engine builder 'friend' who shall remain nameless suggested he could save me a lot of money if I bought some roller rockers from him for my BBC heads. The tip was more towards the intake side of the valve all the way through the rotation. Lift, Chevrolet, Big Block Mark IV, Each Part Number: FLK-360-5059 Feb 20, 2021 · Do NOT trust the springs that are on the heads, unless they are name brand springs - if they are the springs that came with the heads, toss them in the trash. Feeding the heads was an induction combo that included an Edelbrock Super Victor intake manifold and Holley 1050 Ultra Dominator. 00 a pair assembled. Shop owner passed away (old age lots of wisdom) so I got the engine mounted in the rail dragster ready for break in oil fuel n plugs. 3L ZQ8 black on black Dec 29, 2020 · there are tons of sound clips of these cams online. R. So much that his stud girdle is so tight when it's on it moves the lash by . Is this to good to be true? I"m thinking of a set for my 396 bored . Comp cam setup on a 496" stroker!! Unit made slightly above 600 HP on 93, and is still running with not a single issue, even with the "cast" blank hyd-roller! Additional Cylinder Head SpecificationsValve Angle: 15°Valve Seal Material: VitonSpark Plug Type: AngledRetainer Material: Steel Maximum Spring Lift: . 88 valves, hardened exhaust seats and made 528 HP 566 TQ on a 9. Find PROMAXX Performance Freedom Series Big Block Chevy Cylinder Heads and get Free Shipping on Orders Over $109 at Summit Racing! PROMAXX Performance Freedom Series big block Chevy cylinder heads offer exceptional quality at an unbelievable price. Ships February 1st Feb 27, 2019 · I bought some of the Pro Comp heads off eBay thinking I'd save money and I had heard they were decent heads. and MARTY at Patriot has sponsered over 10 big pay out races from N. he said he flows one head from every case of heads he buys and the flow numbers are with in 7 or 8 percent of advertised. Legal Streeter - 1956 Chevy Bel-Air 7. 88 exhaust. The rpm heads are only 210 intake runners and 2. 2cc Pro Head CC Kit: 4733 $144. He flowed an out of the box brodix head hunter 383cc cnc ported head and after his port work the RHS heads flow 20-28 cfm more than the brodix heads from . It never seen 2,600 rpms and a chunk of intake runner came out. the oval motor tested fair for a puny cam, carb and intake. 600 lift. 75 that is stock. BBC, made 780hp@6250 & 760ft. 6 valves, pair of flowed 750 dp's on top of a 8-71 from the Blower Shop. Customer went another direction. Oct 25, 2021 · In all fairness, the stuff has gotten better. Guy I bought the deal from offered me my money back,or he had these new ProComps he'd give me,and I gave him the iron heads back,as they had head porting work,and he wanted to fix them. They have 2. Shop our entire collection of professional-grade cylinder heads today at JEGS High Performance! Jul 21, 2012 · '67 Chevelle Malibu, Catalina Blue, 540 inch Rat, Air Flow Reasearch 290 CNC Heads heads, Custom Hyd Roller, . 320cc Intake Runners 115cc Chambers Spring pads are machined to 1. Oct 21, 2009 · I'm planning on redoing the top end of my 402 bbc, cam, heads etc. Let me know if i can help. 650" Hydraulic Flat TappetThrough Head Oiling SystemStandard Port LocationsBronze Valve Guides. 200 118. Close to 400cfm at . Alot of these knock off products are sent over to China to be made and have no engineering. Exhaust flow is 307 CFM at . RAT454 Flo-TeK Recommended Setup: Header – Based on Chassis - 2-1/8” Rocker Arms – Isky Roller Rockers 204-96 1. Jump to Latest 21 - 32 of 32 Posts. Bogie . 500 229. 600" max lift valve springs, and steel retainers. Our BBC rotating assembly came from the experts at Scat Enterprises. Like all Dart aluminum heads, PRO 1 24-degree heads are cast from virgin 355-T6 aluminum for its greater strength than standard A356 alloys. 500” (S/M & F/P) Int Port Location: Stock Feb 23, 2009 · Got to test a customer supplied set last year using an 11-451-8 H. Maximum performance, bracket racing, heads up and super classes. 100 62. He just assembled the Engine a few weeks ago, mild cam and put iy on a dyno last Friday 2. Pro Action Heads RHS also wanted to design a head that would share many of the same great qualities of the Pro Elite heads, but in an affordable as-cast design. The Pro Topline heads fit my budget and looked like they had respectable flow numbers. 7- 395 362 249. All Procomp aluminum cylinder heads feature the following: High Grade Aluminum; Bronze Valve Guides; Hardened Seats; Advanced Port Design for greater flow; Multi angle seat design for performance valve springs; BBC Alloy Heads 115cc / 320cc; Bare Head; Sold Dec 15, 2024 · Spark plugs for BBC Pro Comp heads Jump to Latest 334 views 3 replies 3 participants last post by Mista Bone Dec 16, 2024 New cnc'd pro comp aluminum bare heads BBC. 824 Oct 10, 2007 · Engine Mods - ProComp 320cc BBC Aluminum Head - Does anyone have experience with these heads? I see them on Ebay for $1000-1200 a pair complete. 75:1 or Equivalent Intake Manifold – Victor JR or Super Victor FLOTEK Performance Big Block Chevy Cylinder Heads are manufactured from cast The Dart Big Block Chevy Pro 1 Aluminum Heads were inspired by Dart's championship-winning Pro Stock designs and available with 310, 325, 345, or 355cc oval or rectangular port intake runners, big block Pro 1 aluminum cylinder heads deliver out-of-the-box airflow that smokes the competition! Jun 25, 2003 · ProComp BBC Heads. Aluminum Cylinder Head for BBC Big Block Chevy 330cc/122cc 396 427 454 502 540. ran FLOTEK 360cc Big Block Chevy Cylinder Heads 360-5059 Cylinder Head, 360cc, Solid Roller, Aluminum, Assembled, 0. Save Share AFR strongly recommends material be removed from the piston and not the cylinder head. I looked for some alternatives and found Pro Comp. Jan 2, 2010 · We Pick Up 116 HP With A Simple Swap To RHS Pro Action Heads, Edelbrock Intake And A Lumpier Comp Cam. 43. 700 265 Valves, springs, etc specs are listed in first post. I have a friend who got a set of the Procomp 360 BBC heads with the CNC job. 7,500 RPM, 540+ cubic inches, great head for maximum effort, comp or bracket cars. Mar 17, 2010 · The Pro Comp Cleveland is really really a nice casting. 2 months later the engine was apart for a new set of pistons, 4 sleeves (only one required for the actual damage) and a new set of yella terra heads. Mild cam with 0. You therefore know that we like them and they work. that question has been asked a thousand times but either work the 990's or save some money dont buy the pro junk Jun 8, 2019 · Where does the Pro Comp/Speedmaster fall in the quality? Must be better then Patriot and RHS. ID number location Question 2. Pascal Mar 14, 2015 · What I am trying to decide on, head wise on this engine is between a friends set of 781 port and polished oval port heads with 2. However, I ordered an oval port set. Mar 1, 2008 · We set up the peanut-port heads with the same good Comp valvesprings, titanium retainers, and roller rocker arms. they dont look to be pro comps seeing they have 300cc and 320cc and 360cc rec port heads. it was a stockish type rebuild at 9-1 compression. These were on a NA 540ci BBC Street Car. That and a buck will get you a large coffee at McDonalds. f. We have a comp hydraulic in it so we have them set up at 140 on the seat 360 open. I know their cnc'd BBC offering under an 8-71 bolted to 572 cubes don't seem to Dec 21, 2009 · Here's the Specs on the Pro Comp Heads PC 3037 & 3038 COMPLETE HEAD-FEATURES & COMPONENTS Cylinder Heads PRO COMP 210CC (3038) Intake Runner Aluminum Cylinder Heads With 60cc Combustion Chambers. Last edited by jdnca1; 05-03-2002 at 11:47 PM . Compared to Harland Sharp or Comp Cams they were a lot less. I have new shortblock stroker being built and was gonna use some Eddy RPM heads. Would like to rev to about 6k rpm. Lb Torque, Exhaust Bolt Pattern Ford not Chevy ASSEMBLED HEADS INCLUDE; S/S Intake Valves- 2. I have done some 360's for a blown jet boat that runs in the 7's in the quarter. Had to swap one out. 00 to open up the spring pockets for the new valve springs. Procomp heads are available bare, complete and fully CNC machined. effort for 92 pump gas. we put together a 454 years ago. BR 7™ LS7 Compatible Series Cylinder Heads/12° BR 3™ Series LS3 Compatible Series Cylinder Heads/15° BR 1 13™ Series LS Compatible Series Cylinder Heads/13. Bought a set for g/f's bbc to replace a set of peanut heads so price, quality and performance are in line with what we are doing with the car. 740 to except the largest roller CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. Mar 16, 2010 · Yep the Herbert heads are Pro comp. Norm at Ultra Tech just did some chamber work and bowl blending. Planning to add a turbo in the future. 95. 5X10. The only special requirement is 4 longer head bolts or studs on the exhaust side of the head to accommodate the raised exhaust port required to overcome the restriction inherit in the OE design. 190/ Stock, S/S Exhaust Valves- 1. Y. 335 dome pistons. IK® Series Cylinder Heads/23° Race-Rite® Small Oct 2, 2008 · Pro Action Cast Iron 320cc Cylinder Head, 360cc BBC Cylinder Head Racing Head Service knocked one out with its Pro Action cast iron heads. The seller sent me one oval and one rectangle. Is this safe to say the 250 means plus 250 on the valve lenght, etc. CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. 19/1. Another big advantage is that we almost always have them in stock. The price seem reasonable at $1100. Jay. CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. 650 harland and t/d make rockers that are correct but pricey. The 781's I have been quoted 250. Oct 9, 2009 · It must be the heads. They are available with as-cast 310-, 325-, and 345-cc intake ports. Part Number: DRT-10024370A Not Yet Reviewed Feb 18, 2010 · do not buy pro-comp heads !!!!! I helped a friend assemble a 351 Windsor and when it came to the point to check the piston to valve clearance, the rocker arm tip to the valve was off. 25int. For sale is a FRESH from machine Shop Pro Comp 320cc Runner BBC Conventional Heads. i think you will find that the procomp heads have a very thick deck which you can mill Jan 10, 2010 · mopar heads. Has 6000 miles on it so far in the past year. Bottom line is they are junk, and he regrets buying them. 25-inch stroker crank. Sept. 2cc Pro Head CC Kit: POW351150 $211. If the CHI is a 10 the procomp is a 9. 050, Lemons Headers, Holley Multiport Fuel Injection, TCI 6X 6Speed Automatic, 12 bolt Posi Eaton TruTrac, 3:31 Richmond Gears, front and rear power disc brakes, Global West Suspension, etc. 320cc Intake Runners 119cc Chambers Spring pads are machined to 1. 3/28/2011 Dart 320cc BBC Aluminum Cylinder Head Part# 16300000 thru 16375136 Material: 355-T61 alum alloy Comb Chambers: 119cc or 139cc (121cc or 141cc w/CNC) Intake Valve Dia: 2. Fel-Pro head gasket. Solid bronze valve guides. 25 and 1. J porting, pro comp single plane intake, 850 Holley carb, 2. Had to cut, re-align and weld all the push rod guides, (have been told that's common to alot of aluminum heads though) and go with some rather long push rods, but all Jan 11, 2012 · oval pretty much kill a BBC by 4500 world product as a good set of aftermarket bolt on iron ovals that will imporve range upto 6000-6500 stock 049 and 782 heads are the large ovals and usually need at leas a 2. 565hp @ 5900rpm 532# @ 5400rpm. . 560" Guide Aug 18, 2008 · I have a set of the original (New Zeland) Pro Topline 320cc heads on a pump gas 582c. PC3028 2 BARE CNC PORTED Aluminum Big Block Chevy Pro Comp Motorsport Heads Manufactured from 356-T6 aluminum Have Accessory holes to except factory accessories. 600” x 2. 600 248. any info would be appreciated thanks Classifieds Most Recent Oct 25, 2021 · In all fairness, the stuff has gotten better. Nov 26, 2007 · The 383 had a 4340 assembly,SRP blower pistons,custom ground mech. Nov 23, 2007 · Location: VA Hospital, Dallas, Tx (214 302 1924) cell-972-464-7400 360cc BIG BLOCK CHEVY, Cylinder Heads, Aircraft Grade 356A T-6 Aluminum Alloy, CNC Ported. Jan 5th 2025 16013 1 Show phone number Without knowing the specifics of the customers engine, weight, cubic inch, cam, intake, converter, gear, 1/8 miles 1/4 mile, I can not understand why someone would tell someone to cut that much out of a head. Manufacturer Part Number 119cc Aluminum Bare Cylinder Head Chevy BBC 454 320cc 119cc Aluminum CNC Aluminum Cylinder Head Small Block Mopar 318/340/360. We used good valves, springs etc in them. May 20, 2021 · i have pro comp raised port angle plug heads on my 383 with 11-1 compression and use R5671A-7 NGK plugs. 450” (as cast) - 1. This is not a cheap built but will get job done. Speedmaster cylinder heads offer great performance for less than it would cost to rebuild an old set. We've used the Pro heads with excellent results and the numbers in their catalogs were always "dead-on" with our flow bench readings. I've seen some good running cars at the track running them. You can order AFR as cast, 70% (port work )or 100% for your application. If they're bare-nekiid with no casting marks, they're probably Pro Comp, the world-famous chinese counterfeit head. 19 and 1. 800 lift did the brodix head pass the RHS by 3 cfm. What Are The Top ProMaxx Performance Big Block Chevy Aluminum Cylinder Heads? The three most popular BBC ProMaxx heads include the following: 320 Series with 320cc intake ports, 119cc combustion chambers, 2. Now Dan Barton took this head and made 985 HP on a 514 as cast manifold. All Procomp aluminum cylinder heads feature the following: High Grade Aluminum; Bronze Valve Guides; Hardened Seats; Advanced Port Design for greater flow; Multi angle seat design for performance valve springs; SBC Alloy Heads 64cc / 160cc A/Plug; Bare Head Kit Includes:ProMaxx Performance 320 Series Aluminum Cylinder Heads for Big Block Chevy - 723-2214ARP High Performance Head Bolt Kit - 070-135-3603JEGS Intake Manifold Gaskets - 555-210100Fel-Pro Round Port Exhaust Header Gaskets - 375-1412Fel-Pro Wire Ring Head Gasket (2) - 375-1017-1JEGS Dec 11, 2009 · The RHS 360 heads will flow around 400 out of the box. 1037. Both heads feature a 119cc combustion chamber with intake valves (with hardened seats) that measure 2. I have a set of 781 heads now and am considering a set of pro comp oval port 118cc combustion chamber cylnder heads through Skip White. performer rpm intake and stock 800 holley dp. Valve Locks +. roller blower cam,the CNC Pro-comp heads with a 215 cc port volume,2. Jun 12, 2012 · Re: Pro Comp BBC heads Post by sheppard00 » Thu Jun 14, 2012 12:20 am the set I did started out as the 320's and flowed 320 @ . 5- 315 313 218. 99 $ 399. 5:1 speed pro pistons, Crower 252/262 @. 500 dont Nov 21, 2019 · 68 Chevelle Hardtop-11. C to Aug 24, 2012 · Have a set of the procomp 320 on my dads 512 BBC in a 68 vette. 0 with the 84cc rpm heads. 060 x 0. 060-inch overbore with a 4. I know there are better ones out there (AFR, BRODIX, etc. If you did not know the head was Chinese it would be really hard to tell. 100-. 14/1. 800 *Flow numbers are approximate. 1003 301768468043 New set of complete Aluminum Big Block Chevy Pro Comp Motorsport Heads Produce up to 734 HP Out Of Box With Advanced Port Design Manufactured from 356-T6 aluminum Have Accessory holes to except factory accessories. 620 lift on a 108CL, Holley strip Dominator intake, Holley 850DP, TH400 with a 4500 nitrous converter, 4:10 gears and 29. valve and 1. 63: 1 . and 1. 050 . FREE delivery Tue, Jan 21 . Anybody know who is the valve manufacture used by Pro Top Line ? May 17, 2010 · Ive built 2 BBCs with pro comp headsboth 10:1, hyd. I thouht the heads would be too small for a 582, turned out with numbers I am very happy with for a street/strip motor. Apr 21, 2012 · Im looking to buy a new set of BB Chrysler heads. 52: 100cc x 1cc Pro Head CC Kit: POW351160 $450. The heads feature one Jun 21, 2008 · YEA WELCOME TO THE FORUM, i am doing somewhat the same except i'm swapping pro-comps for TFS streets on a 2,500 tube chassis 1/4 mile car. Not sure where the ID numbers are on the heads or what plugs to use. 88 valves plus another 70. my machine shop guy sold them to me for $1100 complete out the Aug 8, 2022 · On more modern Pro-style Heads , its better to flat-mill as the Head is already pretty maxed-out design as far as Valve Angle Degrees, you need a lot of Top Angle transition into Chamber or a part of the Chamber angle Aka: SB2 Those BBC ProComp Heads : i did the bare-minimum Bowl porting or clean up, Aug 30, 2009 · A buddy of mine runs a set of pro comp heads on his sbc, and the rocker boss placement is off or not straight. 250 and exhaust valves that measure 1. I get a chuckle every time I see some pro comp combustion chamber. stuck it in a 78 ,all steel gbody with a small set of headers, 3. PC3021 New set of BARE Aluminum Big Block Chevy Motorsport Heads (2 heads) Produce Up To 748 HP Out Of Box With Advanced Port Design Manufactured from 356-T6 aluminum Have Accessory holes to except factory accessories. 12:1 355 with a solid flat tappet with ported Pro comps. Jul 15, 2014 · Keep in mind as you lower the deck (head or block) the intake width moves closer meaning the intake sits higher relative to the port. But I called Indy about thier 440EZ heads and Russ told me i was gonna lose around 100 hp if i use the small Eddy head. I know Pro Comp initially used poor quality valves and springs in their pre-assembled heads Oct 27, 2005 · i have pro comp bbc heads and they,well, i can take you for a ride. Feb 25, 2007 · He has a homemade flowbench that is very conservative and got 427cfm from them. 25 intake and 1. 540 lift hydraulic cam . Jun 28, 2010 · Do a search,theres a lot of info. Oct 31, 2008 · Mine is a 468 with the Pro Comp 320 heads, Manley valves and Isky springs, 10. PRO 1 CNC heads are fully CNC machined throughout, with 335- or 355-cc intake ports. Need to sell them so I can finish my motor! Jun 29, 2006 · Being very heavily involved in head-porting the "country of origin" doesn't amount to a "hill o' beans" to us. Cylinder Head Style: Assembled Cylinder Head Material: Aluminum Cylinder Head Finish: Natural Combustion Chamber Volume (cc): 125 cc CNC-Machined Combustion Chamber: Yes Intake Runner Volume (cc): 360 cc Exhaust Runner Volume (cc): n/a May 7, 2007 · Have any of you gents heard any bad reports about "Pro Comp" Aluminum heads # PC- 3021. 17 @ 117mph the best I could get it to do was 10. The heads, the first pair we recieved, were removed from the box and placed right up on the flow bench using 2 valves that were lying around. Jun 20, 2010 · I will say this about the heads we removed a set of BB 2 to put the new 360 runner heads they are NOT PRO COMP, you should go to their web site and see their second to none shop and state of the art machines RPM mag and FUN FORD mag has several pages in this months issue. looks to a different casting. 440" Spring Seat Cutter for . but not many dyno results or cars that have 1/4 mile times. Those early Victor copies were def a buyer beware situation. 710/ Stock 4140 Steel Retainers 1. Jun 22, 2006 · I have a bare set of 320 CC Pro Comp heads to use on a 468" BBC bracket engine and have some questions. We buy these Dart Pro 1 BBC cylinder heads as porter castings so that we can do the machining on our own Apr 2, 2020 · ARP Pro Series Cylinder Head Stud Kits 135-4001 . 400 x 1. Heads designed for street performance and mild bracket Jun 4, 2023 · Guys, what does surprise me is that AFR selected to use a bigger, less street friendly head as there BBc China Ginny pig! A 335 sized head is a more serious engine combo that one would seem LESS inclined to sway to a cheaper off-shore casted head? I thought they might do something between the 265 and 290 as a cheaper "street" head. Cfm CNC heads 121 cc Fresh valve job New springs Shaft rockers Complete ready to bolt on BBC Pro Comp CNC 360 cfm Heads - Car Engines & Engine Parts - Jackson, Michigan | Facebook Marketplace Apr 28, 2002 · I run NGK 5672A-9 or 10's, or Champion PN 791 pro stock plugs in natural 632 with dart 360 alum heads, solid roller cam. Everything is still good (crossing fingers). Mar 21, 2020 · The RHS Pro Elite heads are sold unassembled, and to fill them, they recommend parent company COMP Cams’ components. heads have good parts in them, and has a comp solid roller, chain and lifter, but everything else is *****. 607/. 00 to rebuild and machine for 2. 750 I did open up the pinch layed back the ssr and widened the port above the ssr. Just yesterday tested BBC iron heads #224-19000-360. Apr 23, 2010 · . lbs. 85@115 on Dunlop GT Qualifiers, through mufflers. 560" Guide: 4735 $143. Heads are designed for 3/8" pushrods. the rectangle motor was a low budget slap together with a . 791/Exhaust 1. just a sample of what is to be made. 300” Intake Port volume: 360 sm-366cc 360 FP-389cc Intake Port Dim: 1. We also did a head swap on the dyno for a guy. 700, ported they went 410 @ . even put them against my iron eagle and pro1 heads that were borrowed. Patriot performance BBC heads Feb 3, 2020 · I'm looking into heads for my 454 with seal pro hyper pistons H518cp. May 24, 2014 · Same combo with nearly stock 041s will make 375 HP. @ 4500rpm. Think of cylinder heads as the lungs of your engine, where air moves in and out of the combustion chamber. For some builds, stock heads are just fine, while a custom porting and polishing job may just be the ticket to big power. 17: 100cc x . Swapped heads for a set of AFR 195s horsepower leaped to 547 HP at 7700 rpm. my car is lighter than most others. Sold individually. Jun 29, 2006 · Being very heavily involved in head-porting the "country of origin" doesn't amount to a "hill o' beans" to us. Good enough for what I wanted. Oct 8, 1998 · General Chevelle Tech Area. It has their block, rotator, heads, intake etc. They do work as well on the aluminum pieces. 73 rear, and a b&m 10" converter. Vortec 062's 406 w/hyd. Performance. I found a pair of pro comp aluminum heads. These heads run very well. 25 Hooker headers, stock HEI distributor, Summit 238/248 . ) but they are more than twice the money and dont seem Feb 4, 2015 · My situation is different,I bought a complete 427 engine cheap,that had iron 71 LS-5 heads,was going to use them but one had a crack. I have a buddy that bought the Pro Comp Heads a few years ago. 2019 Drag-Week Winner - N. oh yea they are aluminum heads. 880 exh. This engine was a max. These heads are bare and were at the machine shop to get cleaned up and checked to assure all is perfect ready to install valves and run. I took a pair of the 820's and did some bowl work, blended short side, installed 2. Mar 7, 2015 · thinking about doing a budget big block 496 that will see some nitrous. Or fastest delivery Thu, Jan 16 . No doubt, not the head for a serious race prepped big block but maybe for the street enthusiast. I've seen plenty of broken off rocker stud bosses on aluminum heads (all different brands). everybody told me that my runners were too big but they work great on my ride but i also have a 70 camaro. 1- 69 69 56. With Dart heads, the thread will generally be 14mm x 1. 5° Small Block Chevrolet Compatible Heads Menu Toggle. not to stir but i love em. 590 hyd. 145 Installed Spring Height-Intake 1. Feb 28, 2007 · AFR heads!!! Bite the bullit and you can get a set for (the last I bought )$1790 complete and ready to run. Jan 10, 2017 · My buddy built an entire Procrap engine for his sand drag blazer. 42. Jun 7, 2014 · C3 Tech/Performance - BBC Pro Topline Head Questions - When I upgraded my 468 I knew I wanted R-port heads and I wanted them to be aluminum. 25 (widely known simply as “14mm” plugs), and in one of two common lengths. 690 7 deg. 700 374. Best for big cubic inch, high RPM use. they fared very well. 250 int. 005 depending on wich valve you check. Dec 18, 2009 · I used these heads for about 7 years without a hitch. Jun 4, 2011 · I had a guy buy pro comp heads for a holden V8, they wher 800 dollars cheaper than yella terra heads. I had read a thread on a forum when those heads hadn’t been out all that long where a guy bought a whole top end package, and when he was mocking everything up discovered the valves were way too long. 88" exhaust valves, 7/16" rocker arm studs, . Save Share PCE 279-1005 is the long type 454 stud set for ProComp/Speedmaster BBC heads. after a visual inspection the only minor Feb 1, 2009 · The Comp cam was combined with a double roller timing chain, 1. 065/1. Price includes shipping Via UPS Ground within the USA! Feb 14, 2010 · i have talk to a guy who sells alot of pro comp bbc heads,he said the casting is alot better than it used to be,but buy the heads bare,add good valves and parts,he said most problems with these heads came from the shitty valves and hardware. Yes i have heard plenty of bad things about thier products, and many things about thier sbc heads, but i never heard any bad or good about the bbc heads. 600 360. That 360 head, though it has its problems is a very very good head. 800 Spring pads machined to 1. 88 exh valves. Fel-Pro intake gasket, oval Jan 5, 2025 · Dart Pro 1 CNC Ported, 360 BBC Cylinder Heads, Assembled - $4,435 HYDRAULIC and MECHANICAL CAM VERSIONS. Aug 10, 2006 · Pro Comp is an R&D company. 68 Chevelle Convertible-454, 12" manual disc brake conversion, B-Body Knuckles, rotors modified to hubs for the Vette rotors, HD Suburban 3-5/32" piston calipers, 75 vette master, DOT5, (stops like my 9C1 4-wheel disc Caprice) Feb 23, 2021 · There are a number of factors that dictate what spark plug is right for your specific combination. 12: 1 . Whether you race Pro Stock, Super Comp, or just want to rebuild your old Chevy 350 small block, there are cylinder heads just for you! AFR 335cc Enforcer BBC May 22, 2020 · Looking for recommendation for valve springs for my 496. 360 runners, ready to go. Other issue that happens is hitting the china wall. Selling BBC Pro comp 360. The first is the cylinder head itself, which will dictate the spark plug’s required length and thread pitch. 1 2. 30" intake / 1. He put them on a 598 and it made 880 hp and on up in the 700's tq on the engine dyno. 300” Apr 4, 2008 · pro-comp heads i have used pro-comp heads in the past for small blocks and was never impressed with the heads, however i just bought a set of big block pro-comp heads for a cutomers engine and i am impressed these are part# pc-3021, 320 cc intake runner, 115cc chambers, 2. 580" Spring Seat Cutter for . Sep 25, 2020 · If the 292's are similar to the 820's, I'll vouch that they can make respectable power. Combustion Chamber: 60 cc Springs: 1. Jul 18, 2012 · A common stroker displacement, our 496 was the result of combining a 0. 75:1 or Equivalent Intake Manifold – Victor JR or Super Victor FLOTEK Performance Big Block Chevy Cylinder Heads are manufactured from cast aluminum and are designed to meet the demands of the big block Chevy enthusiast while retaining high quality at a reasonable price! Perfect for Dec 1, 2016 · After completing the bottom end with a Moroso oiling system (pan, pick up, and windage tray), we installed the ProMaxx BBC 340 heads using ARP head studs and Fel Pro MLS heads gaskets. Mar 26, 2016 · I have a older pair of Pro Top Line BBC 360 port heads. They're machined from high-quality aluminum and most come assembled with the finest parts (bare heads are also available). A friend of mine bought a set and then was told after the fact that they are a very poor item. Makes about 550 hp. INT Long Short EX. 300 valve ported they will go 420's easily. 250” or 2. 2- 126 119 112. The seat and guides are very good quality and they machine very nice. Running pro comp rectangle port heads. It was shop built while I was away for work. Find many great new & used options and get the best deals for Big Block Chevy CNC Ported Pro Comp 360cc Heads at the best online prices at eBay! Free shipping for many products! Nov 13, 2011 · General Discussion - procomp 360 cc bbc heads - any one have any pro's or con's about procomp 360 cc alum bbc heads. Cylinder Heads Menu Toggle. Make sure you get pics - Pro Toplines will have their logo cast into the valvetrain area and on top of one exhaust port. 5. HOT ROD Staff Writer Jan 02, 2010 HOT ROD Staff Writer Jan 02, 2010 Mar 16, 2011 · I just got a new set of RHS 360cc cast iron bbc heads and flowed them here is what the first one flowed and a picture. 00 for an assembled set. Mar 20, 2016 · These are for the OEM SBC and BBC head bolts to help save the bosses on the cast iron heads. It not only out performs the competition; it is at a price that Mopar owners cannot believe. 030 over 1978 454 for my 72 4sp nova. With the 2. I took the Pro Comps,after Re: Pro Comp - Speedmaster - Flo Tek BBC castings Post by GOSFAST » Thu Jan 05, 2017 11:56 pm harry k wrote: Did a search tonight on Flotek BBC Heads and this came out ,so a bump from 2014 Mar 25, 2010 · Re: Pro Comp BBC stud girdles Post by Tobias Aldrete » Thu Mar 25, 2010 5:38 pm That is one of the issues with the ProComp headsyou would have to take one for the team and buy some because sometimes their stud spacing and angles are correct sometimes they are off slightly. 23 @ 196+ @ 3800# Dec 9, 2008 · PRO COMP oval port BBC heads Jump to Latest 31K views 44 replies 24 participants last post by Wolfplace Dec 13, 2008 Procomp heads are available bare, complete and fully CNC machined. Just bolt on a set of complete heads for instant power - cos we've done all the hard work for you! Plus, you can turn up the horsepower even more by choosing heads with CNC-ported runners and chambers, CNC-profiled chambers and other enhancements. had bone stock 049 heads with a fresh valve job. 180 offset lifters that help and you can buy retro cups Jul 28, 2017 · I don't know anything about pro comp heads. Only thing i would be worried about is the rocker stud bosses. cammed 461s, one oval, one rectangle. 400 195. 2012 and it didn't even make it through the break in. The PRO1 24 Deg 365cc CNC is for uncompromising performance and racing applications which favor high RPM power over low end flexibility. PC3021C/FF281. 1cc x . 030 over with speedpro forged pistons with . Chevy BBC 454 320cc 119cc Hydr-FT Complete Aluminum Cylinder Heads. Ripoff and Duplicate. 10 sec. I've been running the procomps for almost 3 years and have had no problem with them, i think you will enjoy the improvement from the pro-comps over the DOVE's. We proudly carry powerful small block, big block and aluminum cylinder heads that will raise horsepower and help optimize your engine's performance. Question 1. 4- 246 238 190. This is a cylinder head flowbench database. RHS or AFR are my choice for street or Race heads. 73 gears. The motor is under 500 cubes and around 11. the deck thickness is . aluminum pro comp heads 320cc intake runner big single plane and 1050 dominator with 2. 0- 386 375 273 Sep 1, 2009 · The RHS BBC Pro Action and Pro Elite BBC heads utilize stock rocker arms, intake and exhaust manifolds. Street motor 10-1. Pro Comp Bbc Heads . So you get no +/-'s on tolerance or Do's and Don'ts on what can and can't Find Dart Pro 1 Aluminum Cylinder Heads 355cc Intake Runner Volume (cc), CNC-Machined Intake Runner and get Free Shipping on Orders Over $109 at Summit Racing! Inspired by Dart's championship winning Pro Stock designs, Dart Pro 1 aluminum cylinder heads cover a wide range of applications from street cars and trucks to all-out racing. The one in the picture is the first pro comp head I've seen broken like that. 83@121mph Apr 3, 2005 · The foundry was purchased by Comp Cams and will be returning under the old RHS head service connected to Comp years back. I'd cut the heads and see how the intake sits then decide what to take off the heads, etc FLOTEK High Performance Cylinder Heads 1712 Read Street, Evansville, IN 47710 Phone: 1-800-270-0095 I Fax: 812-421-0983 Sep 15, 2013 · Well I used there BBC Rectangle port Heads out of the Box and am currently running them now,Took them apart and checked them, and couldn't find a problem with them, I own a set of Dart CNC 360's that are on the engine in my dragster but these were good for the moneyand from what we could tell The Pro Comp BBC head is an old Canfield head design! Jun 14, 2019 · 520 BBC 6. 460" Dual Spring Assembly. Aluminum heads can shave a lot of weight, and high flow heads can make your engine breathe much easier. 3- 182 174 154. Sep 22, 2023 · 498ci 16:1 pistons pro comp heads. 541" lift, ~290 duration. Feb 23, 2008 · Pro Toplines only came in 320 and 360 versions. Our combustion chamber shapes are very critical to flow and altering the cylinder head can adversely affect flow and power production. i. Also, double check the spark plug seats. 240cc Intake Ports. Top End Combos; LS Compatible Heads Menu Toggle. Pretty impressive power numbers, without the "NOS SNIPER KIT" nitrous oxide. 85: 50cc X . port heads with 115cc comp chamber and 320cc runners with 2. Jul 8, 2009 · I have to be honest. 8- 378 360 261. 2cc Pro Head CC Kit: POW351155 $74. 0/1. just been browsing heads to get a idea of pricing and seen these on compition products called power products heads. I can read the numbers on the valves, example intake 250G - YH and the exh 100H - YH. I assume you're referring to aluminum heads? This item is not sold as a pair, this is a single cylinder head. 81 valves and 84cc The Maxx 171 SB Mopar heads have finally given SB Mopar enthusiasts a choice. It will flow more air than a chi head when done right. Pull after pull with the Pro comp heads the best he could do was 588 hp. Chevelle Malibu ss 64 489 BB with parts from Lewis racing Jun 17, 2008 · Has anyone used the procomp BBC rec. 33: 250cc x 1cc Pro Head CC Kit: POW351170 $196. They seem like a great value for the price and flow very well. I start installing everything and one of my rocker stud holes strips. I am in the middle of a 505ci BBC pump gas street/strip motor w/goal of 600hp and mid 6 sec 1/8 mile times. This Pro comp bck-hp is a splendid kit to help your head studs as it includes all of the parts needed to create unequaled hunting Bbc steroids! You can find this kit at a price you can afford to pay, and it will help you out as you develop you for Bbc steroids. 99. 81 valves and 84cc Apr 21, 2012 · I have new shortblock stroker being built and was gonna use some Eddy RPM heads. cam, team g and pro systems 850. 99 EACH for BARE HEADS direct from Pro Comp! Jump on this deal. $399. There is a reason they didn't put there name on them. Aug 4, 2007 · Anybody have any opinions/experience with the Pro Comp 320 Alum heads. if you are running solid roller comp makes . Cutting the intake side brings it back down. 6- 355 335 235. Hardened valve seat inserts w/ multi angle seats. Break in and race Cylinder Head, Iron Eagle SS, Cast Iron, Assembled, 67cc Chamber, 170cc Intake Runner, Chevy, 1996-99 Vortec 350, Each. 88 valves or going in the budget aluminum head route and getting a set of pro comp 300cc oval port heads from skipwhite. Summit Racing. I have done some custom 320's that will flow in the 480 to 500 cfm Pro Comp. 1 compression, mild cam 496. Aug 19, 2006 · Without knowing the specifics of the customers engine, weight, cubic inch, cam, intake, converter, gear, 1/8 miles 1/4 mile, I can not understand why someone would tell someone to cut that much out of a head. I need to replace both the intake and exhaust valves. 675 lift, 234, 244 at . 850 plus ride 315 868 6877 Pro comp heads - Car Engines & Engine Parts - Herkimer, New York | Facebook Marketplace Facebook Find many great new & used options and get the best deals for Pro Comp BBC Big Block Chevy Rectangle Aluminum Cylinder Heads 454 502 Complete at the best online prices at eBay! Free shipping for many products! PRICING IS PER PAIR These are the same heads as we use in our Big Block builds like this one. It baselined at 442 HP at 6800 rpm. Mine had the seats machined too far down, so half the spark plug threads were exposed in the combustion chamber (they called for a 3/4" reach Jan 17, 2022 · My shop 540cid made 2350HP with an F3-121 and Dart 360 heads done by RFD. Order high-performance cylinder heads online today. 600 lift and 7 cfm more at . Apr 24, 2010 · I must say, for a stock cast piston'ed 454 short-block, pro comp 320 aluminum head w/Dr. May 26, 2019 · Where does the Pro Comp/Speedmaster fall in the quality? Must be better then Patriot and RHS. He suggested they were probably actually made by Comp Cams or one of the other US companies but had Engine Pro engraved on them. Jan 5, 2011 · The actual casting quality of the Pro Comp heads seems to be pretty darn nice. Hell Abbott he said the RHS are some of the best 24 deg heads: "The RHS 320 heads are still some of the best 24 degree heads out there. It is the customers responsibility to verify proper piston to head clearance. the 320s are a 115cc chamber and the power products ones are a 335 port and 122cc chamber. 003-. 6 ratio Gold Series roller rockers, and custom length pushrods to work with the Pro Comp heads and hydraulic roller lifters. 5 slicks. The Pro Action heads come in a 320cc and 360cc intake runner. Reply. Is it a nice as the CHI, that is a good question. cam and stock rocker arms Jun 12, 2007 · Head Bolts Take 65 Ft. 300 160. kik fnmciiz ywwgib cxib pay zbaj psayh ijv boze chxq