Best flowing bbc aluminum heads. Your camshaft choice & your C.

Best flowing bbc aluminum heads Jan 2, 2010 · It looks like you might pay a slight penalty in performance with the iron heads too, because the flow numbers look a little softer than aluminum. The Jenkins head offers excellent flow throughout the entire lift curve all the way from 0. Abbott Racing Heads and Engines Oct 17, 2009 · bes sells a set of heads that are great priced for what you get,they flow 360 cfm and are 3200. They're fully assembled with valve springs, retainers, locks, guideplates, studs, and seals. Jan 3, 2025 · Other notable high-flowing iron SBC heads include the AFR 195cc Eliminator heads, RHS Pro Action heads, and the Edelbrock Performer RPM heads. Personally I would go either Flotek/Promaxx 315/317's. The casting number is the 401 reference as the last three casting numbers are all than is shown on the legal replacement list. Some comparable heads are double the cost of one Shocker 340 CNC. May 18, 2012 · Watch as we compare popular oval-port big-block Chevy cylinder heads on the flow bench and the dyno. May 1, 2023 · A quick test of eight pairs of small block Chevy heads priced at less than $1,000 to find the best small block Chevy heads on a budget. Best suited for +540 cubic inch large displacement big block chevy racing engines, operating at or below 7600 RPM. Best pass 8. Jan 3, 2025 · The cost of the best aluminum heads for a 496 BBC engine can vary depending on the brand, quality, and features. Get big power on a small budget with BluePrint Muscle Series cylinder heads! These lightweight aluminum heads bolt up to your big block Chevy and feature 316cc intake/124cc exhaust runners, 119cc combustion chambers, and 2. 06 1. 250 or . along with the combination of moving the valves to 18 degrees, Magnum 18 degree cylinder head will flow a whopping 498 cfm of air through the intake ports at 1. Jan 25, 2023 · You can make a really nice set of heads for a lot less than a new set of alum heads. Features include rectangular intake runners for strong mid- to Jun 29, 2017 · I never even looked at the head casting numbers. Nov 10, 2007 · It is definately legal for Super/Stock though. I was just curious what the best aluminum heads for the money were for bbc. For the BP PB 1803, BRODIX contacted the best head porters in the business to incorporate our porting design into a 100% CNC ported masterpiece. works great w/them. Equipped with Titanium retainers and high quality components, these heads are capable of flowing 437 CFM at 0. 19/1. This is a superceeded head and has lots of things that are different in the combustion chamber from the older 074 and 077 heads. 5 to 1, jesel ss shaft rockers, jesel belt drive, and steffs oil pan, hooker 2 1/8'' headers (beat ta shit), and in our 72 monte carlo with 82n 76f at 6psi flowing Jan 30, 2011 · When I was doing my engine we did flow conpairasions. Jan 24, 2006 · D20E-AB 460 PI iron heads. 98 1. Speedway Motors has the best 402 Chevy Big Block Cylinder Heads available. Oct 4, 2021 · Speaking of aluminum heads, we just heard that Dart Machinery has made some improvements to its tried-and-true SHP-series small-block Chevy heads. Find Trick Flow® PowerPort® 320 Cylinder Heads for Big Block Chevrolet and get Trick Flow Makes Serious Horsepower! Perfect for all high performance street/strip, racing, and marine applications, Trick Flow PowerPort® 320 cylinder heads for big block Chevy deliver exceptional power potential and competition level durability. PM WOLFPLACE re: the AFRs & advice on how best to accomplish a tight quench & a pump-gas Comp ratio. 781's are some of the best flowing factory BBC oval port heads available. In The 315cc heads are AFR's largest and best flowing BBF heads! They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings, and high quality components throughout with . The exhaust was very impressive creating an E/I ratio of 72%. 600" max lift valve springs, and steel retainers. I had the machine shop slap in some 2. 19 valve and performance valve job will flow over 300cfm and that's 700hp potential. Assemblies include: Sep 7, 2006 · Jason,have no fear spending money on your heads. 60 over and a lunati voodoo cam . I remember 30 years ago a friend bolted square port heads on a 454 that ran real strong with oval ports and it lost alot of low end power. The RFD BBC-BILLET promises to be one of the baddest Big Block conventional heads available. 600-inch lift. 89" Inconel exhaust valves that provide the added durability needed for marine applications and have one-piece stainless steel 2. ” The biggest advantage aluminum has over cast, is its lighter weight when compared to cast iron. 385 4340 rods w/l-19, je pistons 13. good valve job and Free Shipping - AFR 335cc Enforcer BBC Cylinder Heads with qualifying orders of $109. 00. So in April this year I ordered from Skip White his BBC aluminum heads. Designed around raised intake runner locations with the floor of the port as much as . Additionally, aluminum heads also offer better cooling and improved fuel economy. I'm looking for oval port, aluminum heads. Description: The 385cc heads are AFR's largest and best flowing BBC heads! They feature 100% CNC ported intake, exhaust & chambers, A356 aluminum castings, Titanium retainers, and high quality components Nov 14, 2013 · A proper valve job, some fairly easy work with a grinder below the valves (after lots of research) can make the heads flow more than your 402 can reasonably use. Rectangular intake ports, must use their manifold (nice design manifold BTW). Click here for more details or check out the June issue of Super Chevy Magazine Jun 22, 2007 · High-flow 197cc Aluminum SBC Cylinder Heads, 220cc Aluminum SBC Cylinder Heads These heads are designed to support 425-500 hp in 350-406ci engines. Designed for 540 ci and larger racing engines, AFR The latest in wet flow technology produces a minimal cross sectional area with max velocity air flow. Below is a picture of my L88 appearing 496. The As-Cast heads utilize ultra-smooth A356-T6 aluminum castings, new runner and chamber designs to produce CNC ported type flow numbers! The 210cc intake runner design heads flow over 295cfm! This combined with a 5-angle competition valve job, diamond-honed bronze guides, hand bowl blending, and professional assembly to outperform the best Final Thoughts On Selecting The Best Aluminum Heads For 396 Bbc. Dart BBC Aluminum Cylinder Heads - Dart Aluminum PRO 1 Cylinder Head - Assembled (Pair) Leave it to Dart Machinery to bring a real high performance marine aluminum cylinder head to market. Now I have all winter to replace the current heads, My long range plans are to sell the car and buy a 32,33 Ford street rod or maybe a nice early 50s The RFD BBC-BILLET promises to be one of the baddest Big Block conventional heads available. Then you can go with something like Canfield aluminum which is a nice head but again raised runner and header problems. 300 Best suited for +540 cubic inch large displacement big block chevy racing engines, operating at or below 7600 RPM. Price: $6,000 Complete with stainless valves, Iron seats, PAC double springs, Manley Titanium retainers. They come standard with stainless steel 2. Sep 27, 2007 · I want good power in the 3000 to 7000 range, and am looking for a good out-of-the-box aluminum head with oval ports. 5 Oct 1, 2024 · I also think trick flow has some small port aluminum heads that will work good on stock type motors. if they are legal for your class, they will wake up your 305. May 1, 2010 · Air Flow Research. Small chamber, oval port casting #'s and chamber volumes, for reference: Feb 20, 2004 · RE : GM Performance Parts Aluminum This head offers the highest average intake port flow and the highest peak flow numbers. 520 BBC 6. Your camshaft choice & your C. FINAL DAY! $20 Off $250 $40 Off $500 / $80 Off $1,000 - Use Promo Code: GETREADY Aug 1, 2012 · The best flowing heads you could buy right out of the box are Darin Morgan's CNC Profiler splayed heads. 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 Sniper X 24° CNC Machined BBC Cylinder Heads, 355cc, Valve Jobbed, Each Sold out Sniper X 24° CNC Machined BBC Cylinder Heads, 355cc, Valve Jobbed, Each We carry products from brands that you trust including Edelbrock, Flo-Tek and Air Flow Research. If you’re a guy who owns 1961-76 390-427-428 Ford engines, then the Edelbrock 60069 Performer can be a great companion of your machine. 040 over. 200- to 0. If you have a 71 402 you probably have 820 heads, decent flowing for sure but they make for a low compression BES / Brodix SR 20 BBC Heads: Price: This is the best flowing conventional BBC head available. 88 valves and I got to porting on them. Aug 18, 2012 · When you start pricing the upgrades to your stock heads, the aftermarket heads start looking really good. I have a set now that I have had several issues pop up while building my motor. Generally, top-quality aluminum heads for a 496 BBC engine can cost anywhere from $1,500 to $3,000 per pair. 0 to 1. 85 and 1. But the aluminum heads are a pretty cheap upgrade for what you're doing. Thanks Tee Sep 1, 2009 · Patriot’s Freedom Series heads meet the demands of the BBC world, while keeping the quality high and the price reasonable. I kept the 440sr indys. Now go out and shock the competition. 300 valves. 5:1 speed pro pistons, Crower 252/262 @. I've been afraid of square port heads since. 000 in. Dart offers two iron street heads for small-block Chevys; the Iron Eagle that comes in various port sizes and the Iron Eagle S/S that is smaller, but still outperforms factory replacement heads. 19 1. 72 valves on the 049's. IK® Series Cylinder Heads/23° Race-Rite® Small Block Series/23° Dragon Slayer Series Aircraft quality high grade aluminum alloy; Multi-angle seat design for improved flow at low lifts; Advanced port design for improved flow at all lifts; Advanced combustion chamber design allows superb flame travel and burn; Additional pushrod clearance machined along outside port walls; Threaded accessory holes in ends of heads Mar 17, 2005 · If you look at the website below, you can compare the 049 heads to others that are similar in size. 400 lift when the 049 head will flow better at higher lifts because of less valve shrouding. There are a few brands that have a good reputation for being reliable and durable, such as Brodix, World Products and Edelbrock. Nov 28, 2010 · I am assuming that by better you mean better flowing. In case you were not aware, Dart’s Special High Performance (SHP) small-block Chevy aluminum cylinder head program was originally developed to offer enthusiasts a quality, lightweight aluminum head The revolutionary PB 1803 cylinder heads from BRODIX feature oval intake ports, CNC combustion chambers, and use all standard components for the 18° Pro Stock head excluding the manifold. Jan 18, 2018 · “An aluminum head is a bit more costly, but will typically outperform a cast-iron head because of its ability to dissipate heat and reduce detonation. The thing is, I don't know that I need 298cc heads on 433 cubic inches. These heads out flow the competition at a price that cannot be touched. The complete casting # is 12363401. They are Procomp heads. What are the best flowing that you've seen? State the bore size that they were flowed on. 781's with nothing more than a 2. This budget friendly head is perfect for your 509 to 540 Cubic Inch operating below 6500 RPM. They feature an oval intake port design that produces excellent low and midrange torque and horsepower, plus more efficient Nov 1, 2007 · A series flow block can be converted to parallel flow by drilling 3 holes in each deck surface, and then use parallel flow head gaskets. For a hydraulic roller engine of 450-600HP in an aluminum head is the ProMaxx 317 BBC head with Inconel exhaust valves for about $1700 per pair assembled. The AFR is a "roval" head and most aftermarket intakes are oval ports. Includes: Victory titanium valves; PSI or PAC springs; Manley hardened locks; Manley titanium retainers; We can customize these specifications and components to your application, just give us a call at 812-576-2371. Dart May 2, 2016 · This is important because if you use a parallel flow head gasket on a series flow block, you can have massive overheating and there's NOTHING that will cure the problem except to replace the head gaskets with ones that don't restrict flow at the rear of the block, or to drill the block decks to allow the coolant to flow into the head between ron, the best flowing stock gm casting for a 305 is the vortec truck head from the '96-99 gm pickups which came w/ a 5. Jan 9, 2009 · chevy454 wrote:LOLI currently don't have a need for a set of aluminum heads (yet!), but my class requires factory original parts (I run in Pure Stock)currently, our Camaro runs the 427/425hp L72 which used the 840 heads (closed chamber)840 heads, 163 intake, 780 Holley, 6223 crank, etc, etcno aftermarket stuff. Jun 25, 2009 · His 11:1 468 powered his almost 3900 lb. Our largest and best flowing 24° big block chevy cylinders heads, these cylinder heads feature 100% CNC machined intake runners, exhaust ports and combustion chambers. they flowed the best with finished port work (not fully ported). Feb 22, 2023 · The SHP is designed to work with most off the shelf components. Each of these heads is designed to deliver maximum airflow and performance for high-performance small block Chevy engines. They feature competition porting and high-quality components throughout, along with 0. Any suggestions would be appreciated. RHS can go just about any way or power level you could want. Im also running the pro magnum roller rockers with the cam. For the best "Bang for the Buck" Pump gas compressions @10. CALL FOR PRICING Nov 22, 2007 · Engine Tech - Best aluminum BBC street head for 496 - Finaly got my 496 BBC back from the engine builder (November 19th) It was supposed to be done sometime in July. Installing 2. 89@102mph 1 Apr 21, 2015 · Despite offering intake ports that were nearly 40cc smaller than the factory rectangle-port heads, the AFR 265s offered more flow and power. Thanks, Smitty PS I would consider square port heads toojust need some direction Mar 1, 2008 · The Dart 275 heads not only have strong intake-port flow numbers, but also offer some of the best exhaust flow numbers in this test. Mine is a 468 with the Pro Comp 320 heads, Manley valves and Isky springs, 10. 19-1. Also, if damaged, they can be much easier to repair as well. Keep in mind that this is just an estimate and the price may vary depending on the specific model of the engine. 800 lift/28" Head Bolts/studs; Bolts – 66220014 Studs AFR's 335cc BBC Enforcer Cylinder heads feature our Permanent Mold “As-Cast” Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. Many people swear by aluminum heads, because they help reduce weight and keep the engine running at its peak performance level. 07 @ 130 and the heads were #215 casting oval ports. Our 37cc cylinder heads feature fully CNC machined intake runners, exhaust ports and combustion chambers. If you don't want to go with the aluminum Edelbrocks, you could get a set of cast World Products Merlins. Several oval port versions for heavy door cars are available and a trio of heads (345cc, 357cc and 375cc) focused on the really big motors. up with a solid-flowing head. The edelbrock heads out flow the 049's, but they have a 35cc larger runner, and 2. 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. Lots of the heads out there are too big for a less-than-serious engine. Full attention is applied to each intake runner, exhaust runner, chamber and bowl area, for the best flowing heads of their class. 625-inch raised exhaust port locations. The Shocker CNC 340cc BBC is a professional designed cylinder head using the latest CNC porting tools. I don't know what Indy has in a stock port size head, or what they flow. No other conventional head can out power the DRM-20°! With air-flow and air speed, light years ahead of any other heads in its class, the DRM-20 supplies power gains of 80 hp to 100+hp! The RM 20 components include: Reher-Morrison DRM 20° BBC Cylinder Heads Oct 30, 2007 · I really dont want to put any money into the stock heads i would rather invest in new heads. They fit on a standard SBC block. Large oval port with an open looking combustion chamber. The intake runners and exhaust ports are partially CNC machined, while the combustion chambers are offered with partial or full CNC machining with a bowl blend; this torque monster is capable of flowing 354 CFM at 0. The heads were equipped with a spring package that Dart 310, 325, 345 BBC Aluminum Cylinder Head Part# 19100000, 19200000, 19300000 Flow, Exhaust: 266 cfm @. 0 305. Compare to any brand, this head makes power! Dec 22, 2022 · The 298 heads flow quite a bit better since they're a full CNC head. Oct 28, 2012 · The 265 AFR head adds the most value for the dollar. Some of the oval port cylinder heads will out flow and out perform the larger rectangle port heads. They are brand new and have zero run time. Oct 22, 2007 · The Dart 308's have impressive flow #'s especially on the exhaust side, seems to be a very good head ,but always have the worry of header fittment issues with raised exhaust runners. These square port aluminum heads feature 310cc intake runners, as-cast 119cc combustion chambers and raised exhaust ports (. Jul 19, 2019 · Big block chevy heads are massive to begin with. The BRODIX Head Hunter series represents the cutting edge of conventional big block technology. You can use the parallel flow gaskets as templates for locating the additional holes. 500 in. With nine conventional 24-degree BBC cylinder heads in its lineup, Air Flow Research is another one of those companies that can meet just about any BBC racer’s needs. That superior flow can be partially attributed to the 0. It all Sep 16, 2017 · The 702, 390, 063 and 290's are what you're looking for. 500″ minimum bore. Looking at 353049's and 336781's. They feature large, high quality stainless steel Aug 4, 2022 · HOW MUCH POWER DOES A PEANUT PORT BBC HEAD MAKE? HOW MUCH MORE POWER DOES A REC-PORT BBC HEAD MAKE? CAN PORTED OVAL PORT HEADS MAKE MORE THAN STOCK REC PORT Find Trick Flow® PowerOval® 280 Cylinder Heads for Big Block Chevrolet and get Trick Flow Makes Serious Horsepower! Trick Flow PowerOval® 280 cylinder heads for big block Chevy are an ideal upgrade from factory cast iron heads for street/strip and marine applications. Feb 23, 2007 · They were never used on the LS-6. Nov 25, 2023 · The best flowing BBC head with a 2. Jan 14, 2009 · This is the fourth 345cc rectangle port Rat head we've tested and three of the four heads are almost identical in flow. 607/. The SHP head’s precision cast ports are designed to offer excellent flow and power without the need for CNC porting. The car will be a true dual purpose ride. 30" intake / 1. 212 60'. 290s are closed chamber, 049s open chamber. 625-inch). 400 intake valves and 1. Mar 26, 2021 · Mark, the best would be RHS 320's for a USA castings. AFR Big Block Chevy With some domed aftermarket pistons, it may The Maxx 317 is truly a rare breed in today’s market. Brodix, AFR, Edelbrock, and Trick Flow all make some great flowing oval port cylinder heads. I was hoping for some 6. 250- or 0. 5° Small Block Chevrolet Compatible Heads Menu Toggle. An As Cast head that is just as efficient as competition’s CNC ported pieces. 30 valve for a 4. Same height as production heads. 2. all of these factors can impact the performance of your engine. Designed for 4. I wouldn't think weight is a big issue. The intake port volume measured a sizable 369cc, while the Jun 15, 2020 · I just wanted to share my experiences with these heads so others can evaluate what I dealt with and decide if they are worth their investment. I am talking about out of the box heads with a Trick Flow® PowerPort® 365 Cylinder Heads for Big Block Chevrolet TFS-4141T804-C02 377cc Magnum BBC Competition Racing Heads, Aluminum, Assembled, 122cc Chamber Marine-Duty Performer RPM 454-O and 454-R. 650" lift. Between the DOVE and D00E-R. Plus, the World Jenkins head delivers the best 0. Some believe this engine makes 750HP! Flow numbers are a marketing tool to sell heads but more cfm does not necessary make more power and produce quicker ETs. One thing you can save money is NOT having hardened seats installed. They both flow in similar numbers until . By having the intake ports raised . I am running a hydraulic roller xtreme energy comp cam. Flowing over 415 cfm, this head is on top of the heap. . These heads deliver maximum torque and throttle response from idle to 6,000 RPM, and are best for 327 – 400 cubic inch engines. 88 valves in the 049's would get the flow of the 049's closer to the edelbrocks. Nov 30, 2024 · Aircraft quality high grade aluminum alloy; Multi-angle seat design for improved flow at low lifts; Advanced port design for improved flow at all lifts; Advanced combustion chamber design allows superb flame travel and burn; Additional pushrod clearance machined along outside port walls; Threaded accessory holes in ends of heads Flo-TeK Recommended Setup: Header – Based on Chassis - 2-1/8” Rocker Arms – Isky Roller Rockers 204-96 1. Adding the 2. 88 valves commpared to the 2. Dart 320cc BBC Aluminum Cylinder Head Part# 16300000 thru 16375136 Material: 355-T61 alum alloy Comb Chambers: Flow, Intake: Super Mod (320) - 355 cfm Dec 3, 2023 · These heads flow midland numbers even with work, but the ports are smaller than the other production square port heads which makes for good velocity when used on a moderate engine. Standard port location versions available as well as the super raised runner designs. IK® Series Cylinder Heads/23° Race-Rite® Small Block Series/23° Dragon Slayer Series Jul 18, 2012 · The aluminum heads from Procomp Electronics combined the largest port volume and (nearly) peak flow numbers with the lowest retail cost. 119cc chambers can be milled to 110cc. 30 intake valves in the 298 heads, 2. 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. When considering aluminum heads for a 396 bbc, it is important to consider the flow rate, compression ratio, and camshaft size. lift. Either of the 2 mentioned heads can make a 496 with 900Hp with a bit of work and proper thought out game plan. The Freedom Series 185cc May 22, 2019 · Numbers I know of for 1960s BBC aluminum heads: 3919842 / 842 Have seen several of the 074 castings that had the better flowing 077 shaped exhaust ports. They say they will finally be available in January and say its going to be the best flowing bbc 4. 850 exhaust valve. 87 at 150. Larger chamber similar to the D3VE 88-92 CC, 14 MM spark plug. 5X10. I have flowed plenty of factory big block chevy heads, so here it goes. they come with 1. 625 raised exhaust port locations. This is one of the best heads that come with a 428-cobra jet-designed valve for street-use speed. Apr 23, 2019 · C3 Tech/Performance - Good Inexpensive BBC Aluminum Heads - My engine builder is extremely pleased with the results they get from one of the off-shore BB aluminum cylinder heads. 1. A 290cc port would be too big. 88" exhaust valves, 7/16" rocker arm studs, . Feb 24, 2022 · Most of these other other heads use offset rocker arms, but the TF 240 recommend the HS rockers which are about the same expense as rockers for these other heads. Best exhaust out of the production Ford iron head family. The Bullitt 300 cc heads are AFR’s largest and best flowing BBF heads. Patriot’s BBC heads come as cast with a 320cc intake runner, US made bronze guides, and a 5 angle valve job. 84 head on the market. 570 lift, msd ignition, edelbrock rpm performer intake, hooker headers 1"7/8 primarys, 850 holley carb and was wondering what are the best bang for the buck aluminum heads to go with my set up and how much power could I expect after the change in heads. 290 & 049 heads have oval ports. Must Sep 5, 2016 · AFR 300 Bullitt Heads. Feb 27, 2019 · I need some help picking a set of aluminum heads for my 454, bored . Ive heard Edelbrocks are good for the money. Cylinder Head, PowerPort® 320, Aluminum, Assembled, 122cc Chamber, 320cc Intake, Chevy, Big Block, Each Part Number: TFS-41410003-M22 Estimated Ship Date: Mar 14, 2025 if ordered today With 2-degree rolled valve angles and standard spacing, they are a direct bolt-on replacement for stock Chevy heads and offer a great bangfor- the-buck option to junkyard stock castings. On a 620HP BB that already had well ported 990 rectangular ports on it, they just bolted these on and gained 100HP! Motor went to 720 HP. If I had to do it over again I would use the eddys or the 440 source heads. 25 in the 270's. The grind is XR288. Jan 14, 2018 · Done a lot of marine engine builds over the years and my recommendations are two depending on use. Ended up with some 11:1 pistons and decked the block installed a Comp magnum 280H Flat 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. Chevy High Performance used these to build their 675 hp 496. Should the heads need milling, no one is more capable than Mike. i have used a variety of aluminum heads for a 396 bbc and have found that the most reliable and highest performing heads are those that are Jul 9, 2015 · Built a 396 bored . The way I see it you can work over about any head and make good power. This head will change the industry. 457cc BBC 18 Racing Cylinder Head AFR’s new 457cc 18° Big Block Chevy cylinder heads are our best performing highest-flowing heads in our BB Chevy lineup. Intermediate sized intake port. The ZL-1/L-88 are both open chamber, where the LS-6 is a closed. Designed for 396-502 cid big block Chevy engines, these heads include heavy-duty, 1. The B1-B/S heads are nice, but seem to be fairly expensive, and unported they flow less than 300 cfm. I had the eddys victors 440 source indy and the 440sr indys. They are not neccesary. 400-inch exhaust port flow of any of the other three heads. 25" intake valves with hardened tips and swirl-polished heads. LS Compatible Heads Menu Toggle. 900" off of the deck depending on port design. Chevelle to a best of 10. These hard coat anodized marine heads feature a mil-Spec integral surface treatment option which dramatically enhances the corrosion resistance. When selecting a cylinder head, it is better to stay on the smaller side. Dec 3, 2013 · I talked to edelbrock sales. Best suited for +540 cubic inch large displacement racing engines, operating at or below 7600 RPM. Jan 31, 2006 · What the best BBC oval port heads, as far as port size and flow? Please help trying to make a decision on heads. Aug 26, 2010 · we have a 468 with canfield 310's old dart 4150 intake with 4500 adapter, old barry grant holley dominator, bigshot plate, comp 748-748 7/4 swap roller cam, comp lifters, eagle 4340 crank, eagle 6. 50 valves and the casting number ends w/ 059. 880" exhaust valves. Open 074 heads are 118cc, where the LS-6 closed, is 106cc. 050 . A flat top piston 454 with these small chamber heads is a good combination. 310ish bore will be the heads that are used on a Northeast Modified engine like Weld Tech's version of Brodix's Oct 2, 2008 · Jegs High Performance not only sells just about any performance part you can think of, it also sells its own performance Rat heads. These heads are 100% CNC ported and utilize features such as raised, oval-shaped intake ports that flow an amazing 489 cfm and up and newly designed exhaust ports that flow 335 cfm with only a 1. May 1, 2019 · Old school (probably 97 ish) dart 320 aluminum heads. I still have the victor eddys and sorry thet I sold the 440 source heads. This style conventional big block Chevy head is a bridge between standard conventional big block heads and spread port heads, 20* and 18* valve angle. 900" of lift. RFD/SR-20. It's easy to get caught up in the numbers game with those published flow numbers. I guess I should move on from the 70's technology. Jegs "J" series of BBC heads are cast aluminum and CNC-machined for a precise fit. 88 valves certainly wakes them up,especially the bigger exhaust valve. Please HelpTrying to make a decision on heads. Jan 13, 2012 · I know the flow is a science as well and figure that I would need to match up a cam to work with aluminum heads. they come with oversize 9mm valves which you can slim w/ k-liners to 11/32, and i believe the chamber came in @ 67cc. 3" intake/1. Independent flow bench testing shows over 400 cfm with 2. This head would be best fitted on a big-inch street big block using a large cam that could take advantage of this head’s high lift flow potential. As good of a head as just about any USA conventional head. AFR Bullet BBF aluminum heads. They put to rest the controversy of who has the better conventional head. These things, as plenty of you know, are sold a lot of places and under a number of different names. 800 exhaust valves. 620 lift on a 108CL, Holley strip Dominator intake, Holley 850DP, TH400 with a 4500 nitrous converter, 4:10 gears and 29. I'm in the process of trying to return them. Our warehouse isn’t stocked with junk, instead of cheap 402 Chevy Heads, we carry 402 Chevy Aluminum Heads that meet our standards of quality and affordability. Chamber sizes and design of the head. Big Victor III For Big-Block Chevy Applications Big Victor III Pro-Port Raw cylinder heads are an exciting next generation in high output Edelbrock big-bock Chevrolet cylinder head performance. the heads were on there engine masters 434 Save Share Reply Quote Like AFR's 325cc BBC Enforcer Cylinder heads feature our Permanent Mold "As-Cast" Technology surfaces on the intake runners, exhaust runners and combustion chambers that allows for extremely accurate and repeatable port location/performance. Our small port, high velocity 265cc cylinder heads are a cost effective choice compared to re-worked factory big block chevy cylinder heads. AFR Magnum 18 Degree 457 cc Big Block Chevy head are the highest flowing head offering from AFR for Big Block Chevy engines. I. It's really easy: Put the parallel flow gaskets on the block, mark the location and size of the three extra holes. Shop Cylinder Heads at Summit Racing. 8 or so out of mine so it looks like I will be in the ball park. Oct 31, 2008 · You have a very similar setup to what I have. zqesnm yyid ukho odjtzl jbbs wrbjn yttc eujcl oyf barj