The intake valves are angled at 24 degrees with a 4-degree cant, and the exhaust is 15 and 4 degrees, respectively. Searching the internet, I find that 454 Magnum block and heads are different than the 7. Displacement. 4L with 4-barrel square bore Carburetor Mounting with Large oval port Cylinder Head with Chevy Big Block Mark IV Engine 1983, RPM Air-Gap 2-O Dual Plane Intake Manifold by Edelbrock®. I have the GM version of the edelbrock ovals on my 540 and although I am considering AFRs, I will try my current heads first. , is your source to get race mufflers, stainless header components, bullet style race mufflers, header flanges, merge collectors, mandrel bends, oval exhaust tubing, stainless X pipes, v band flanges, performance exhaust components. Chevrolet Small Block Assembled Aluminum 185cc Heads Pair. 88-inch performance valves used in high-performance rectangular-port heads. First, from everything that I've read, putting bigger valves in a closed chambered head, like my '290's', doesn't help at all because the intake valve is shrouded even more than the smaller 2. 5:1 comp, and a compcams 284 extreme energy cam (. intake manifold and E-CNC rectangular port. In addition to a huge weight savings (iron BBC heads should be abolished), the Brodix heads increased the power output from 631 hp and 578 lb-ft to 704 hp and 624 lb-ft of torque. They got 464 Hp on the dyno with this combo. Find great deals on eBay for 454 heads and 454 aluminum heads. Chevy Top End Kit 396 427 454 496 502 Bbc Aluminum Heads Oval Port 540 750 Lift. 540" (Gen V, VI) • Use head bolt kit P/N 12367779. Discover Bbc Heads Aluminum on sale here with the biggest selection of Bbc Heads Aluminum anywhere online. 030 all the way around if you do not know where the intake will sit then you can make good stuff in to junk i have did a lot of port work but it all at the chamber front of the valve and. They had open chambers, small valves, and smaller roundish intake ports of the earlier oval port head. Bowtie Oval-Port Aluminum Cylinder Head Assembly • Completely assembled with 2. 00 Conversion by welding, including bosses andfuel rail $425. It has Forged TRW flat top pistons with 9. It has been said that they actually outperform the rectangle port head up to about 4000 rpm. 190" stainless steel AFR #7601 Exhaust Valve, 1. PSCA HEADS UP TIME October 11, 2019, 1:09 pm BBC Profiler Sniper tall deck large oval/rectanngle port - HRE September 7, 2017, 540 bbc blown alcohol - johnny. Our 305cc "As Cast" or fully CNC ported 315cc cylinder heads will provide you with flow numbers most medium sized heads, and some larger, can only dream about. BuyAFR AFR As Cast 305cc BBC Head [AFR2100] - AFR 305cc as cast BBC race heads AFR's Torque Monster The smallest intake volume runners in our line-up, but don't let size fool you. The Edelbrock 540 c. AFR’s 335cc Rectangle Port Powerhouse! Are you looking for big torque and big horsepower number? AFR’s BB-Chevy line of medium volume intake runners will provide you with exactly that. Use your cylindrical carbide bit to cut this white ring away. Brodix 351/365 Oval Port Big Block Chevy Cylinder Heads, Priced From: $3,695 Custom Built by Shafiroff Race Engines and Components. You can price and It has a streetable 9. 540" (Gen V, VI) • Use head bolt kit P/N 12367779. Those are torque monsters!!!. Find the best aluminum bowtie street cylinder heads for your big block engine from Chevrolet Performance. has a post next to the top of the deck in the piston hole it will not effect anything the rings don't get near it it was a factory defect the machine shop said. A pair of Profiler 290cc aluminum cylinder heads will take care of the intake and exhaust flow. Chevy Top End Kit 396 427 454 496 502 BBC Aluminum Heads oval port 540 750. Find AFR 290cc Oval Port Magnum BBC Cylinder Heads 3640 and get Free Shipping on Orders Over $99 at Summit Racing! AFR 290cc oval port Magnum BBC cylinder heads feature 100 percent CNC porting on the exhaust, intake, and combustion chambers to provide the ultimate in oval port performance. 06 valve is. That is the case with Profiler heads, the oval port intake does not match at all, but the rectangle port intake is a close fit. -CNC ported with Weingartner Racing Port Design pair bare $2600 (coming soon) -Brodix 270cc oval port as cast heads assembled for flat tappet or Hydraulic roller cams pair $1950 -Brodix 270cc oval port as cast heads assembled for Solid roller cams up to. 3 53031 Professional Products Hurricane 375 CFM 400 CFM 430 CFM 478 CFM Shipping Address. Newly designed exhaust ports that flow extremely well with smaller valve diameters makes these heads a great choice for various engine combinations. Bbc For Sale. The Brodix oval-port heads (PN 2030002) feature 335cc intake ports. I installed a set of the 350-cc port heads in out-of-the-box form on a mule engine. I have a clone set of roller prepped Performer style heads assembled by ATK on my SBC. All heads are made with A356 aluminum and are equipped with high quality components throughout. ) CompCams magnum rocker arms stock 8. Drop a pair of the 340cc or 360cc BBC R-Series heads on the 540 and add a little more cam, and you'll be pushing 750 horsepower easy. GM Performance Parts built the ZZ502 Base engine as a partial short block engine assembly. Intake Flow Numbers. For the uninitiated, peanut port refers to the small, oval-port heads used on the Gen-V 454 truck motors run prior to the introduction of the Gen VI in 1996. However, no problems have shown up in these Pro Comp heads after doing our CNC porting program. This information has been gathered from several sources and has not been verified. 4 litre long block and replace it with the present engine. 00 BBC, oval or rect port, specify std or talldeck, 4150 or 4500 opening $425. 8 deck bbc 18 degree spread port heads Built for Brodix 1803 oval port heads but has been on rectangle heads. The 265cc heads work best with 396-468-cubic-inch displacements, while the 290cc option works well with engines up to 509 cubic inches. intake manifold and E-CNC rectangular port. I do have the BBC rectangle port Edelbrock MPFI EFI intake on the shelf, but not an oval port version, or I'd make sure that it has the meat to make the cuts to port match your heads. why is the 4150 carburetor mainly used in blow thru instead of dominator what i need and i am going to use the brodix -3 extra oval port 351 cc heads, but brodix. Chevy V8s with large oval-port cylinder heads (1975 and earlier), the new RPM Air-Gap incorporates the same race-winning technology that's been used on our Victor Series competition intakes for years. BIG BLOCK BBC CHEVY 454 496 300cc OVAL PORT ALUMINUM HEADS ASSEM BBC OVAL 272 $997. 25 intake and 1. The best path to follow here is to get rid of the rectangular-port heads, but that may not be financially possible. 320cc CNC ported Brodix BB-2 aluminum big block Chevy cylinder head. Alright, a little Big Block Oval Port Head history here. very inefficient on old iron BBC. Naturally Aspirated build putting over 600 RWHP to the ground. Drop a pair of the 340cc or 360cc BBC R-Series heads on the 540 and add a little more cam, and you'll be pushing 750 horsepower easy. It made 636 hp on pump gas and may have had more but we brought race gas thinking it would. The industry is buzzing about the new Dart 20° cylinder heads with the new Reher-Morison proprietary CNC port designs. Throttle Body Size To calculate throttle body size with bore, stroke and number of cylinders: To calculate throttle body size by engine displacement in cubic inches: To calculate throttle body size by engine displacement in liters: The equations above give the best throttle body size for overall performance on the street. 553,87 EUR. 30" Intake Valve and 1. The second of the true as-cast heads, the oval-ports from Procomp Electronics. Will NOT fit GEN V or GEN VI Blocks. The oval-port heads use a semi-open combustion chamber that is compatible with lower compression engines up to 540hp. You get the assembled big-block V-8, four-bolt main short block. BBC ProComp Aluminum Cylinder Heads 320 Runner Assembled - Item # PCM 3021C. 3 53031 Professional Products Hurricane 375 CFM 400 CFM 430 CFM 478 CFM Shipping Address. They left the fun stuff for you to install. TFS-41400001 Trick Flow BBC R-Series 320 Cylinder Heads. The heads also feature manganese bronze guides and ductile iron valve seats. Chevy Top End Kit 396 427 454 496 502 Bbc Aluminum Heads Oval Port 540 750 Lift. BBC Magnum - 24° Cylinder Head Our MAGNUM line of cylinder heads for the big block Chevy are available in Oval Port designs with runner volumes of 265cc, 290cc, and 300cc or Rectangular Ports with 305cc, 315cc, 325cc, 335cc, 345cc, 357cc, 377cc and 385cc runners. 1063 casting bbc oval port heads came off 69 chevelle 396 been completely resin new stainless. 44-1 compression, closed chamber iron large oval port heads with stainless 2. CNC Ported Heads. 850 exhaust valve. With that said, if you're looking for a little more you should be able to find some in the combination you have possibly through a cam and or converter change. I was going to. They'll out-perform larger heads in many applications. I don't have any part numbers, but you can't go wrong if you can find a set of oval port heads made around 70-72. AFR 305's for your 396-468 Combos's, CNC chamber option 305's as well as AFR 325's for your 496-540's and AFR 345's for your 540-632 cubic inch big. Cast Iron Aluminum With Brass Inserts-High Rise (See Note) Block Cast Iron (4 Bolt Main Bearing Caps) Rods Forged Steel Pistons Cast Aluminum. 030 over, and decked to zero deck height. These oval port heads will support over 540 hp with 9. The edelbrock 454-O heads are the ones with the rectangular oval port. I see this is a little dated and not to argue but I have to add that the 781 oval port heads will in fact rev and build HP to 7000. Skip to content. Designed for competition 396-502 Big Block Chevy's #2902 fits rectangular-port heads and #2904 fits large oval-port heads (1975-earlier) These intakes are designed to optimize the flow characteristics of an 850 CFM standard flange carburetor Features include extended runner dividers, smaller plenum chambers and unique runner design for max. My goal is a 425 - 450 HP big block. 700" lift and is the ultimate street/race weapon without having to step up to a rectangular port design. 540" (Gen V, VI) • Use head bolt kit P/N 12367779. This is a new pair of our newly released Assault Racing rectangle port big block Chevy aluminum cylinder heads. Do you have the most secure web browser? Google Chrome protects you and automatically updates so you have the latest security features. Allow the heads and block to cool for accurate torque readings. To answer your other question a regular oval port intake will work just half of the port is covered because of how small the ports are. Stainless Headers Mfg. It has Forged TRW flat top pistons with 9. Subject: oval port vs. Entdecken Sie Bücher für jeden Geschmack: Krimis & Thriller, Romane, Science Fiction & Fantasy, Horror und vieles mehr. what do you intend to do with this engine. The Pistons - Forged ICON Pistons that deliver 10. My 555 with BMF 350 heads has been a best of 7. The industry is buzzing about the new Dart 20° cylinder heads with the new Reher-Morison proprietary CNC port designs. Bowtie Oval-Port Aluminum Cylinder Head Assembly • Completely assembled with 2. CALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. This information has been gathered from several sources and has not been verified. Mild solid roller, no porting on the heads other than a simple bowl blend & gasket match to the intake. I don't have any part numbers, but you can't go wrong if you can find a set of oval port heads made around 70-72. RFD is a full service machine shop and uses only the best equipment. Kit includes: Dart Big Chief or Pro-FIler Intake, Dart Big Chief 14° & 18°, Big Duke 18° or Pro Filer 12° Heads, Jessel Shaft Rockers, Aluminum Sheet Metal Valve Covers, Cyl Head Stud Set, Wiseco / JE Pistons, Speed Pro Rings, Clevite Bearings, Custom Ground Camshaft (4/7 swap), Comp Cams Lifter Set,. More "pedestrian" engines (read passenger car and truck), received the oval-port cylinder heads. Big Block Bbc Chevy 454 496 300cc Oval Port Aluminum Heads Bare Set. AFAIK 343772 are peanut Port heads. Big solid roller and it made 730 hp and 725 tq not a real pump gas friendly deal. This shortblock crate engine is supplied with bearings, crank, pistons and rods. View search results for bbc heads and get Free Shipping on Orders Over $99 at Summit Racing! AFR 24 BBC Cylinder Head 265cc Oval Port Partially CNC Ported, 109cc. Brodix BB-2 Plus 540 Old Arley Road, Houston, AL 35572. It all depends on the application. Oval port heads with relatively small intake runners work very well for street engines and small displacement big-blocks, because the oval ports will maintain good velocity in the airflow, and that promotes better fuel atomization. 1489 heads require our PCE349. flat tapp: bbc 454 496 alum heads 118cc chamber 330cc runner solid roller: bbc 454 496 alum heads 118cc chamber 330cc runner hyd. Our 305cc “As Cast” or fully CNC ported 315cc cylinder heads will provide you with flow numbers most medium sized heads, and some larger, can only dream about. 00 BBC, oval or rect port, specify std or talldeck, 4150 or 4500 opening $425. We specialize in 396 , 427 , 454 Engine Components for Sale. If we don't have it on this page , don't despair because we may very well have it and it's not listed here yet, or we may get it in the near future. At the time of this writing the heads come bare from Pro Comp. The BRODIX Head Hunter series represents the cutting edge of conventional big block technology. I do have the BBC rectangle port Edelbrock MPFI EFI intake on the shelf, but not an oval port version, or I'd make sure that it has the meat to make the cuts to port match your heads. Brodix 2061001 Race-rite Oval Port Assembled Cylinder Head. This is new PAIR of our newly released Assault Racing rectangle port big block Chevy aluminum cylinder heads. Like the original ZL1, the Anniversary 427 comes grossly underrated at 430. 5:1 compression when used as part of the Total Power Package, Unique oval intake port shape produces flow similar to rectangular ports, but the smaller port size provides excellent seat-of-the-pants performance and crisp throttle response, Semi-open chamber design maximizes efficiency with streetable compression ratios,. 50 Chevy Top End Kit 396 427 454 496 502 BBC Aluminum Heads oval port 540 572. very inefficient on old iron BBC. 75 @ 125 mph in a 3500lb Malibu. In some cases, we may offer 2 different CNC ported versions such as our Stage 3 ported LA or magnum Edelbrock heads, and the BigMouth heads with pushrods moved over to widen the port at the pushrod restriction and increase the port volume. 88 valves, springs for hyd roller cam, guide plates and some porting done to them. Where Do I Find My V8 Block Casting Number? Marine Longblock's have a variety of distinct characteristics that make them different from automotive longblocks. Find Aluminum In Stock Now. Searching the internet, I find that 454 Magnum block and heads are different than the 7. Spray it with a light coat of white paint. Dyno Graph of 496. I would not put even the 305 CC AFRs on a 402. 75 to 1 cast pistons stock rods stock cast crank Edelbrock torker intake 552/555 230/236 @. 600 HP 468 Big Block "The beginning" We start our build with a Gen V - 4 bolt main 7. The Edelbrock 540 c. AFR 385 Full Competition Port. 300'' with a 370cc intake port and flows over 370 cfm, but may not be angle machined. AD Performance Iron Eagle Platinum SBC 215cc Port Cylinder Heads [10510020P] - Iron Eagle SBC 215cc Port Cylinder Heads Small Block Chevy - 215cc Runner, available assembled or bare, 49cc, 64cc or 72cc chambers (please specify), angle or straight plug (Please scroll down for all available options) All Iron Heads are DART's New Platinum Series cylinder heads!. CHEVROLET 454 CYLINDER HEAD CAST #346236 RECONDITIONED If more than one item is in the listing the picture might not be the exact one you will be getting. The industry is buzzing about the new Dart 20° cylinder heads with the new Reher-Morison proprietary CNC port designs. Chevy 396 427 454 496 502 Bbc Pair 2 Bare Aluminum Heads Oval Port 540 572 New. The aluminum heads of the ZZ454/440 account for 15 horse improvement over the iron-headed 454 HO. 454 HO - Musclecar power at a low-buck price! Now, this is the stuff that legends are made of. AFR 305's for your 396-468 Combos's, CNC chamber option 305's as well as AFR 325's for your 496-540's and AFR 345's for your 540-632 cubic inch big. They can be made in different tube sizes stepped or not and built for your engines deck height and aftermarket cylinder heads, with many options available to suit the customers needs. I love 454 - 502 inch motors with super efficient oval port heads with matched components to achieve 5500 - 6000 RPM at WOT. Bbc-oval-272 Type 4. The oval port heads would still make close to this, but it's fair to say that due to most people running a dual plane intake with the oval port heads, the power would drop by approx. due to number of emails i receive, if you are genuine just call as there is so many combos and scenarios. Dyno Results for 496 BBC 93 octane, 10. bbc 632 naturally aspirated all top quality parts and brand new not yet complete due to so many variations available to suit application they make around 800 to 950hp depending on final combo dart big m block 4. The earlier oval port head like was on the 330's was a good head, preferred by many high perf Chevy engine builders and will easily support horsepowers well over 600. 88 valves, a bowl blend and a gasket matchno other porting. 370" and P/N 12363411 for bores 4. The BRODIX BB-3 XTRA has taken the conventional big block to the next level. The Edelbrock 540 c. Our 305cc "As Cast" or fully CNC ported 315cc cylinder heads will provide you with flow numbers most medium sized heads, and some larger, can only dream about. This premium product is the best way. Discover Bbc Heads Aluminum on sale here with the biggest selection of Bbc Heads Aluminum anywhere online. 88" exhaust valve. A 402 does not have the displacement to build any velocity through a port that size. This engine is designed to carry you across the. They left the fun stuff for you to install. 725 Manley raceflow valves + multiangle valve seats (30,45,60 deg. Time For A DominatorTorque and power output was not as good with any one intake as it was with the oval-port Race-Rite heads when equipped with a Wilson Manifolds-modified oval-port version of the. Dart Machinery, LTD. Looking at 353049's and 336781's. Here is list of all OEM oval port heads OVAL PORT - Valve size 2. The "peanut port" or small oval port heads started showing up on 1977 model year light duty trucks, not all 1977 454's got the peanut port heads. Big power for mid to upper RPM ranges! Ideal for high performance and race applications. 730 or more and match port the intake and headers. Drop a pair of the 340cc or 360cc BBC R-Series heads on the 540 and add a little more cam, and you'll be pushing 750 horsepower easy. Shop with confidence. Important note. what do you intend to do with this engine. AFR 265cc Oval Port "Magnum" BBC Small Port, High Velocity, Torque Monster. Intake Gaskets for Chevrolet Performance LSX CT Cylinder Heads Gaskets for SBC Oval Port Head Gasket for BBC: M13544 Bore Opening: 4. You should look at buying Doug Gees 540. Naturally Aspirated build putting over 600 RWHP to the ground. Each component undergoes a detailed manufacturing process that involves the hundreds of calculated and precision steps to ensure the finest quality possible. Discover Bbc Race Heads on sale right here with the biggest choice of Bbc Race Heads anywhere online. The oval port heads would still make close to this, but it's fair to say that due to most people running a dual plane intake with the oval port heads, the power would drop by approx. [email protected] BES Racing Engines - BES / BBC Brodix Head Hunters. Download now. These heads are 100% CNC ported and utilize features such as raised, oval-shaped intake ports that flow an amazing 469 cfm and up and newly designed exhaust ports that flow 320 cfm with only a 1. 06 valve is. 5:1 compression when used as part of the Total Power Package® Unique oval intake port shape produces flow similar to rectangular ports, but the smaller port size provides excellent seat-of-the-pants performance and crisp throttle response. Single plane will make 25 more HP and sacrifice 10#/ft of torque. AFR (Advanced Flow Research) Big Block Chevy Performance Cylinder Heads - 300cc Oval Port 24° "Magnum" BBC Hover (or touch) to zoom. The ONLY time on this engine is dyno and run-in time. The oval-port variety was left for more pedestrian people. The "peanut port" or small oval port heads started showing up on 1977 model year light duty trucks, not all 1977 454's got the peanut port heads. Fully CNC Ported - Hydraulic Roller, 300cc BBC Oval Port Cylinder Head, 112cc Combustion Chamber. The edelbrock 454-O heads are the ones with the rectangular oval port. They are about half the size of a oval port and is the most useless head known to a bbc. com is search engine for Street View, Google Maps and Google Earth - With earth-scout. Over 40 years of selling quality After market, high performance parts such as engine blocks, cylinder heads, intake Manifolds, and many other high performance engine parts for street, off road, marine applications and from week end cruisers to all out race applications. It features a top end package that includes a Victor Jr. 1488 heads take a 1275 or 1275-5 gasket, depending on the thickness you require. 75 to 1 cast pistons stock rods stock cast crank Edelbrock torker intake 552/555 230/236 @. Discover Afr Heads Bbc on sale here with the largest variety of Afr Heads Bbc anywhere online. Air Flow Detail #174 BBC Sniper Head - 320cc Runner. 00 andup Crossover lines and rail mount fuel pressureregulator for above $250. To start i can buy a set of cast iron 049 cylinder heads ( $350) that have been ported and polished, flow benched, CC'd, the 049 has 112CC combustion chamber 255 Intake and 119 exhaust ports GM Performance oval port aluminum heads (12363392) have 110 CC combustion chambers 290 intake 110 exhaust. 88" exhaust valve. Entdecken Sie Bücher für jeden Geschmack: Krimis & Thriller, Romane, Science Fiction & Fantasy, Horror und vieles mehr. AFAIK 343772 are peanut Port heads. The question, then, is whether or not to use a rectangular-port or an oval-port intake. Find great deals on eBay for bbc aluminum heads and bbc used aluminum heads. I have been looking at the brodix bb3Xtra cnc oval port heads I have talked to a couple of big name engine builders and these heads came highly reccomended as did the BMF heads. 5:1 compression when used as part of the Edelbrock Total Power Package. World Products MERLIN series has earned a reputation as the performance industry standard for Big Block Chevy power. In some cases, we may offer 2 different CNC ported versions such as our Stage 3 ported LA or magnum Edelbrock heads, and the BigMouth heads with pushrods moved over to widen the port at the pushrod restriction and increase the port volume. The BRODIX BB-3 XTRA has taken the conventional big block to the next level. Ok, I've been doing a lot of research and reading about the available BBC aluminum oval port heads and am really impressed with the AFR 265's. 880"stainless steel AFR #7630 1. The next set are 3931063 heads which look to have low miles on them and I also have the heads off my old motor which are 3964290 heads. 4 litre and my mechanic says the best way to freshen the engine is to buy a 7. Mains are aligned honed and block is machined on CNC Mill for stroker crank. However, no problems have shown up in these Pro Comp heads after doing our CNC porting program. Chevy 396 427 454 496 502 Bbc Pair 2 Bare Aluminum Heads Oval Port 540 572 New. Accessories - Heads drilled and taped for standard accessories (alternator). 030040-2 - World Products - Merlin 24 Degree BBC Iron Head - 269cc Intake Port, 119cc Chamber, 2. -CNC ported with Weingartner Racing Port Design pair bare $2600 (coming soon) -Brodix 270cc oval port as cast heads assembled for flat tappet or Hydraulic roller cams pair $1950 -Brodix 270cc oval port as cast heads assembled for Solid roller cams up to. Topped off with BRODIX Cylinder Heads BR 7 273 6 bolt heads, MSD Performance intake manifold, Halltech Systems, LLC cold air intake. TREperformance sells new AFR 300cc BBC Oval Port Magnum aluminum cylinder heads from Air Flow Research for almost any Chevy big block vehicle, this is part # 3680. Pro Comp Aluminum Cylinder Heads are a great choice for an out of the box horse power upgrade for your Big Block Chevy. These Brodix oval-port heads are very strong on power delivery and the resultant 899 hp proves it. Locate Afr Heads on sale below with the biggest choice of Afr Heads anywhere online. 1967 Chevy Malibu Chevy Small Block V8 Engine parts in-stock with same-day shipping. The goal is the predict the values of a particular target variable (labels). Chevy V8s with large oval-port cylinder heads (1975 and earlier), the new RPM Air-Gap incorporates the same race-winning technology that's been used on our Victor Series competition intakes for years. To answer your other question a regular oval port intake will work just half of the port is covered because of how small the ports are. 50 Chevy Top End Kit 396 427 454 496 502 BBC Aluminum Heads oval port 540 572. We have a full 5-Axis Simultaneous CnC machine with Centroid control. We also have incoming AFR BBC Heads available! We can modify these for any spring package, chamber size, marine coating or other modifications to fit your exact needs. 039 Comp Bbc 10171 2015 CSI Automotive Sales, Service & Parts. AFR 385 Full Competition Port. AFR’s oval port heads makes good on the mathematical promise of superior performance generated by optimum port dimensions that generate the desired airspeed and increased intake ramming while promoting good mixture quality to support the best possible burn characteristics. PACE Performance - GMP-12498777-3X - Pace Prepped & Primed CPP ZZ454 440HP Polished Finish Crate Engine with GM 4QT Muscle Car Oil Pan. These heads deliver more features, higher flow characteristics and better finish quality than other competitive brands. Big Block Bbc Chevy 454 496 300cc Oval Port Aluminum. We also have incoming AFR BBC Heads available! We can modify these for any spring package, chamber size, marine coating or other modifications to fit your exact needs. To start i can buy a set of cast iron 049 cylinder heads ( $350) that have been ported and polished, flow benched, CC'd, the 049 has 112CC combustion chamber 255 Intake and 119 exhaust ports GM Performance oval port aluminum heads (12363392) have 110 CC combustion chambers 290 intake 110 exhaust. The intake valves are angled at 24 degrees with a 4-degree cant, and the exhaust is 15 and 4 degrees, respectively. The reasoning is sound and not without precedence, as every factory high-performance big-block came equipped with rectangular-port heads. Recommended for agressive street, street/strip or race big block chevys with displacements up to 540 cubic inches operating at or below 6800 RPM. Like the original ZL1, the Anniversary 427 comes grossly underrated at 430. See Don Chart. That's where the oval port heads really stand out. Avoid at all costs. When Chevy introduced the Gen VI iteration, they replaced the small oval-port heads with conventional-sized oval ported that flowed considerably better than their smaller brethren. 88 exhaust valves as well as small combustion chambers to add to the efficiency of the 454 big-block. com PH 304-366-1680. These oval port heads will support over 540 hp with 9. Port Match to Heads. Shop with confidence. 1007 rectangle port gaskets. Both with terminators in dragsters. Occasionally I browse CL and see if I can spot a bbc intake on the cheap. Allow the heads and block to cool for accurate torque readings. 060 just got out of machine shop new cam bearings freeze plugs. BIG BLOCK BBC CHEVY 454 496 300cc OVAL PORT ALUMIN. 396 427 454 496 502 Bbc 115cc Aluminum Heads Oval Port Chevrolet 540 572 New $899. Chevrolet Top End Kit 396 427 454 496 502 540 BBC Aluminum Heads Rectangle in Vehicle Parts & Accessories, Car & Truck Parts, Engines, Components, Cylinder Heads & Parts | eBay. They had open chambers, small valves, and smaller roundish intake ports of the earlier oval port head. View Details. My goal is a 425 - 450 HP big block. PSCA HEADS UP TIME October 11, 2019, 1:09 pm BBC Profiler Sniper tall deck large oval/rectanngle port - HRE September 7, 2017, 540 bbc blown alcohol - johnny. They'll out-perform larger heads in many applications. The BRODIX BB-3 XTRA has taken the conventional big block to the next level. I am trying to get some answers/opinion on something i am investigating on BBC Cylinder Heads. Do you have the most secure web browser? Google Chrome protects you and automatically updates so you have the latest security features. They are about half the size of a oval port and is the most useless head known to a bbc. 75 @ 125 mph in a 3500lb Malibu. 50 Chevy Top End Kit 396 427 454 496 502 BBC Aluminum Heads oval port 540 572. These Brodix oval-port heads are very strong on power delivery and the resultant 899 hp proves it. I was going to. 540" Gasket. The second of the true as-cast heads, the oval-ports from Procomp Electronics. Remanufactured 5. Why buy a set of heads with the wrong parts when we can build you a custom ported set of heads complete, ready to bolt on with the right parts. Oval Port Big-Block Engine Build - The Ovalnator We try to coax 800 hp out of a big-block street engine using oval-port heads and hydraulic roller cam. I installed a set of the 350-cc port heads in out-of-the-box form on a mule engine. Recommended for agressive street, street/strip or race big block chevys with displacements up to 540 cubic inches operating at or below 6800 RPM. We also sell complete numbers matching engines. 5:1 compression when used as part of the Total Power Package, Unique oval intake port shape produces flow similar to rectangular ports, but the smaller port size provides excellent seat-of-the-pants performance and crisp throttle response, Semi-open chamber design maximizes efficiency with streetable compression ratios,. Chevy Top End Kit 396 427 454 496 502 BBC Aluminum Heads oval port 540 750. 88 exhaust valves as well as small combustion chambers to add to the efficiency of the 454 big-block. The edelbrock 454-O heads are the ones with the rectangular oval port. Oval port heads with relatively small intake runners work very well for street engines and small displacement big-blocks, because the oval ports will maintain good velocity in the airflow, and that promotes better fuel atomization. You can gasket-match the exhaust port as well, but leave a 1/8-inch of white ring around it. Bore x Stroke. Speedmaster has become a leader in its field, built on a long term consistency of being a specialist in aftermarket automotive components. port matching is a waste of time for the street you want the intake ports smaller then the intake ports of the heads by. Chevy Top End Kit 396 427 454 496 502 Bbc Aluminum Heads Oval Port 540 750 Lift. BBC 454 block - $600 (hobbs) this is a 454 bbc bored. View search results for bbc heads and get Free Shipping on Orders Over $99 at Summit Racing! AFR 24 BBC Cylinder Head 265cc Oval Port Partially CNC Ported, 109cc. These oval port heads will support over 540 hp with 9. Bowtie Oval-Port Aluminum Cylinder Head Assembly • Completely assembled with 2. Cars & Trucks Motorcycles Other Vehicles & Trailers Boats Powersports Parts & Accessories Automotive. We can supply anything you need to finish up your engine topped with these new heads. Dyno Results for 496 BBC 93 octane, 10. If you have built your teenage dream car and put AFR oval ports on it than there is no doubt this is the cam for you. Condition: Used Brand: B&M WEIAND HOLLEY Country/Region of Manufacture: United States This is a tight low mile B&M 177 blower for big block chevy engines. Looking for Bbc Chevy Aluminum Heads online? Chevy Top End Kit 396 427 454 496 502 Bbc Aluminum Heads Oval Port 540 750 Lift 2015 CSI Automotive Sales. 75 to 1 cast pistons stock rods stock cast crank Edelbrock torker intake 552/555 230/236 @. The Bennett Racing Difference For over 20 years Bennett Racing Engines has produced some of the most powerful and most reliable engines in the world. AFR heads are available bare (without parts), call our tech line for details. brodix fully cnc ported oval port heads, inconel ex valves,10 degree locks and retainers nre alien billet intake, dual injector per cylinder with octane in demand, integral dual throttle body, built-in fuel regulation sce copper gaskets arp billet fabrication aluminum oil pan with hv pump and pick up. Oval-port heads are known to easily support up to 600 hp with the proper combination of parts; some builders have exceeded that mark by a considerable amount in special applications. The Heads - The cylinder heads are a set of (116 cc chambers) Trick Flow 325 cc port heads.