00 now $1,169. If you want a good streetable big block the oval port heads with roughly a 10:1 compression with a cam in the range of 550 to 579 lift with 280 lobe seperation should easily give you those power number. Different size engines need different size ports. shanon's engineering inc. 88 valves, a bowl blend and a gasket matchno other porting. I installed a set of the 350-cc port heads in out-of-the-box form on a mule engine. WICKED MOTOR SPORTS 305 cc BB CHEVY ALUMINUM HEADS WMS 1923-SLDROL wa $1,299. Displacement. This listing is for a pair of BBC 3964290 Oval Port Bare Cast Iron Cylinder Heads. Each head receives a 25 point quality control check prior to being shipped to ensure maximum quality. I have for sale a set of good used, recently removed BBC oval port cylinder heads. Bowtie Oval-Port Aluminum Cylinder Head Assembly • Completely assembled with 2. 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. 454 / 340HP Gen6 w Hyd roller cam & Vortec large oval port heads $3660 w core 496 / 525HP Gen5 w Hyd roller cam & square port Alum Heads $6960 outright 502 / 585HP Gen6 w fuel pump boss, Hyd roller cam w STD forged assem. Sonny's, a lifetime of Achievements! World Class Racing Engines and Components. BBC - Chevy Brodix Heads. • BBC engines with any deck height and 23 degree heads. These heads are 100% cnc ported hand finished utilizing features such as raise, oval-shaped intake ports that flow amazing cfm numbers. Chevy 350 Chevy 400 Transmission Borg Warner Super. afr 1845/1840 ls3 260/69cc. BBC 582 finished and ready to Ship our Monday. In the lower section of this ad you will find valuable information on how these heads perform when used with various engine sizes and cam combinations in street rod. 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. 60 - Angle. 527" intake/. They have a competition valve job, new springs, locks, retainers, and guides. Public group. Sonny's, a lifetime of Achievements! World Class Racing Engines and Components. 88” square exhaust port. I can get them for 800 and they are fresh. I have a pair of BBC heads, casting #3933148. The BRODIX Head Hunter series represents the cutting edge of conventional big block technology. Bbc Chevrolet For Sale. Discussion. approved steel damper. This is the exact kit needed for, Speedmaster, Procomp and many other oval port bbc aluminum heads. Just like our 572 Hemi, engines can be detailed to appear OEM stock or given a more Pro-Street or race look. Kijiji Alerts Fits 396 402 427 454 468 496 502 540 BBC engines Big Block Chevy V8 One pair of stock Big Block Chevy Oval port heads exl. Since it is almost impossible to compare the flow numbers from different flow benches I have started this page to show you how much cfm gain I have gotten out of the heads I have ported. Each AFR Magnum head option is made with a full ¾-inch deck and reinforced rocker stud bosses, the 265cc heads use 2. For a driver or street/strip application with a smaller engine, late '60s 396/427 oval port/open chamber heads are the hot lick. 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. Castings # 60459 6045 These heads flow 328/349 @. This is the exact kit needed for, Speedmaster, Procomp and many other oval port bbc aluminum heads. speedmaster79. Order Chevy 540 BBC crate engines from Tri Star Engines today. Pro-Filer, Sniper Jr. That’s running unported 596 heads, and a stock 360-2bbl intake manifold and a Holley 500 2bbl carb. Heads are complete with Valves, Titanium retainers, Locks, and Triple Valve Springs. qtr window trim and. Dyno Results for 496 BBC 93 octane, 10. Dyno Graph of 496. HP Multi-Point EFI Kit, Big Block Chevy, Standard Deck, 1000 CFM, Oval Port Heads. They are equipped with Manley 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. 1 liter Gen7 Dart Big M MerCruiser long blocks $5775 w core 540 / 672HP Custom order only $9650 no core. Sort: Display: Displaying 1 - 12 of 17 results (Oval Port) Cylinder Head + Add to Cart. $7655 w core 496 / 8. Air velocity in the sharp corner radii of the rectangular ports is relatively slow ; the majority of velocity is centered. The BRODIX Head Hunter series represents the cutting edge of conventional big block technology. I am all well too familiar with spending a shit ton of money to do efi right. I recently ported a set of Brodix cnc heads and was able to pick up over 20 cfms on the exhaust. Can hear engine run as it's mounted on an engine run in stand. 800" Deck, 4500: Chevrolet Big Block Rectangle Port 9. 550" maximum lift - not compatible with hydraulicroller camshafts 289-302 with 7/16" head bolts require #9680 head bolt kit 1. BBC 454 049 Heads HI PERF 396 427 502. "Peanut" oval port heads (mild port work) 2. 700 long H-Beam connecting rods are both 4340 forged and are paired with forged DIAMOND pistons. In the lower section of this ad you will find valuable information on how these heads perform when used with various engine sizes and cam combinations in street rod. port gaskets ). speedmaster79. 3919842 Cylinder Heads Many Aluminum 427 396 Yenko Also Other Dates 260-4176566. • Use head gasket P/N 12363412 for bores to 4. Gonna be fun!!. Different size engines need different size ports. AJPE Big Chief style Offset Intake + Exhaust rockers and Billet Stands, Sheet Metal Blower Competition Intake Manifold Port Matched to the heads for massive flow numbers and induction set up for a 871-1471 Blower. Dart Machinery, LTD. ) - Optimal port design for greater flow, better atomization. Race Flow Development specializes in getting the most out of your engine for Road Race, Circle track and Drag Racing applications. These heads are very mildly built with 2. 3919842 Cylinder Heads Many Aluminum 427 396 Yenko Also Other Dates 260-4176566. Discussion. Cylinder Heads Pontiac big valve 7K3 500 BBC Oval port. due to differences in design and materials the spark plugs of various manufacturers do not have exactly the same heat range. 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. do NOT contact me with unsolicited services or offers. 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. If the part does not fit or you do not like the look of it, feel free to return it. This shortblock crate engine is supplied with bearings, crank, pistons and rods. 1 liter Gen7 Dart Big M MerCruiser long blocks $5775 w core 540 / 672HP Custom order only $9650 no core. They had open chambers, small valves, and smaller roundish intake ports of the earlier oval port head. Sign in to check out Check out as guest. These oval port heads will support over 540 hp with 9. That calculates out to just shy of 600HP at the flywheel. Since most performance vehicles benefit from the weight savings, many upgrade to aluminum heads for this reason alone. NEW Polished aluminum Weiand 8005 intake for spread bore (or square bore with adapter) and oval port heads - $225 Call or text show contact info. The oval-port variety was left for more pedestrian people. Dyno Results for 496 BBC 93 octane, 10. 725 Manley raceflow valves + multiangle valve seats (30,45,60 deg. Also they must be steel heads. This is a new pair of our newly released Assault Racing rectangle port big block Chevy aluminum cylinder heads. Sonny's, a lifetime of Achievements! World Class Racing Engines and Components. 540 CID Big Block Chevy engine featuring a new Dart™ Big M block. TRM Specializes in Hi-Performance Muscle Car Drag Race Circle Track Vintage Classic Chevy Ford Dodge Chrysler Mopar AMC DART Blocks & Heads Valve Train Intake Valve Covers Cranks Holley Carbs Blocks Rear Axles Muncie Diamond Pistons Be Cool Ignition NOS Restoration Collector-car Hobby & more. 1 liter Gen7 Dart Big M MerCruiser long blocks $5775 w core 540 / 672HP Custom order only $9650 no core. Horsepower. Newly designed exhaust ports that flow extremely well with smaller valve diameters makes these heads a great choice for various engine combinations. WICKED MOTOR SPORTS 305 cc BB CHEVY ALUMINUM HEADS WMS 1923-SLDROL wa $1,299. do NOT contact me with unsolicited services or offers. Get your Bbc 540, qualified orders ship free. Thank you for checking out my craigslist ad. HOME LTZ-400 MINI BIKES VOLKSWAGEN Rectangle and Oval port for BBC. The 300cc oval-port heads are ideal for 427-540-cubic-inches. Scoggin Dickey Parts Center (SDPC) makes the task of powering your wicked-fast racecar easier with their new 540 cubic-inch F-1X-12 Procharged big-block Chevy engine. Has complete GM harness and all sensors and standard used injectors (all these items are included, but have been removed in photos, for port work). heads casting # 3931063 , oval port suffix code LJ I personally pulled this motor from an 1969 impala SS 20 yrs ago, ran when pulled. Port 335cc Aluminum Heads Bare Set/pair. Don't think I'll ever build it, so have decided to let it go. ICH has not only created the highest quality CNC heads available but we have now developed heads with a wide range of port volumes. How much horse power and torque would a 30 over 454 with 336781 gm oval port open chamber heads a crane energizer 282 cam edelbrok torker 2 manifold trw 225 dome pistons 700 holley dp carb make?. BIG BLOCK BBC CHEVY 454 496 300cc OVAL PORT ALUMINUM HEADS ASSEM. Re: big block chevy intakes? The peanut port heads came along in 78 when the only bbc were in trucks. Browse our popular custom built engine packages built to your specifications. Contact us to learn more about this Chevy big block for sale. The intake valves are angled at 24 degrees with a 4-degree cant, and the exhaust is 15 and 4 degrees, respectively. 30 over $650 186 1969 Z-28 heads with screw in studs $750 69 Camaro parts: 1. Big Block Cylinder Head Casting Numbers With the level of performance being the defining factor in identifying big block Chevy cylinder heads it's important to understand some very key factors in different designs. Might trade for hunting items. the c396 is an oval port intake drilled for holley and afb I dont recall the heater hose location is same as stock intake the stock iron intake works just as good to 5500if you want a correct location alum intake get a L78 063 intake bolt it on your oval heads and go, good intake look stock painted orange gm snowflake etcetc. 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. afr 1845/1840 ls3 260/69cc. Location: Plainfield; Price: $300; Read more Chevrolet Cylinder Block Heads Sponsored Link. 540 CID Big Block Chevy engine featuring a new Dart™ Big M block. The intake ports are refered to as "rectangular" in the business. 60 - Angle. 25" headers. ICH has not only created the highest quality CNC heads available but we have now developed heads with a wide range of port volumes. Browse our popular custom built engine packages built to your specifications. Aluminum, as stated above provide a sizable weight advantage over cast iron heads. New valves an new springs. Click here for more details or check out the June issue of Super Chevy Magazine. It is ideal for 500+ cubic-inches or any big-block engine with high air flow requirements. 88" exhaust valve. • Use head gasket P/N 12363412 for bores to 4. very inefficient on old iron BBC. This engine has run a best of 10. CNC Combustion Chambers. Engine Blocks Pontiac 400. The all-new RPM Air-Gap dual-quads are the latest design, featuring an open air space that separates the runners from the hot engine oil for a cooler, denser charge for more power. 88” square exhaust port. Edelbrock TR2X rectangular port BBC tunnel ram intake for sale. I have for sale a set of good used, recently removed BBC oval port cylinder heads. Flow data based on Cylinder #1 intake and exhaust port. 88 valves, a bowl blend and a gasket matchno other porting. Heads were done at the same time with new seats, guides, bowls blended and surfaced. Give us a call to see what we can do for you. 60 - Angle. Edelbrock Scorpion Torquer 2910 for square bore carburetor and square port heads - $175 3. 454 BBC motor oval port complete oil pan to intake 18k original miles block number [PHONE NUMBER HIDDEN] block and heads are solid chrome valve covers edelbrock hi rise intake also available is a lunati voodoo hi performance. 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. Kijiji Alerts Fits 396 402 427 454 468 496 502 540 BBC engines Big Block Chevy V8 One pair of stock Big Block Chevy Oval port heads exl. The Vortec uses "Peanut" port heads, so called because they are small little oval heads with small valves designed to build lots of bottom end torque. That’s running unported 596 heads, and a stock 360-2bbl intake manifold and a Holley 500 2bbl carb. 710 solid. 550" maximum lift - not compatible with hydraulicroller camshafts 289-302 with 7/16" head bolts require #9680 head bolt kit 1. 800" Deck 4500 Carb Flange * Machined opening to fit Dart 335cc or similar heads: In Stock. EngineQuest 320 Cast Iron Chev BB Heads Features designed for the performance enthusiast to the all out racer. 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. do NOT contact me with unsolicited services or offers. Race-Rite Oval Port Assembled Cylinder Head - 119cc Chamber, For Big Block Chevy Brandname: Brodix Part Number: 2061001 Description: Brodix Cylinder Heads Race-Rite oval port cylinder heads for big block Chevys bolt on directly in place of your stock heads, so you can reuse your intake manifold and pistons. Factory heads are classified as either high-performance (rectangular port) or standard passenger car (oval ports). 88" exhaust valve. 540" (Gen V, VI) • Use head bolt kit P/N 12367779. 08-14-08 09:12 AM - Post# 1499255 1973 Bone stock BBC 049 casting number heads w slighly better springs,stock retainers and locks, nylon seals Also I am not really sure which head variation to use "oval port canted stock valves and ports"?. 250" intake valve job and 1. Thank you for checking out my craigslist ad. Dyno Graph of 496. These heads have the same features as # 60779/#60769 heads but with a chamber especially for this application. 30" Intake Valve and 1. 496 / 525HP Gen5 w Hyd roller cam & square port Alum Heads $6960 outright 502 / 500Hp Gen6 Short blocks with STD GM Forged assembly No Cam $4450 502 / 585HP Gen6 w fuel pump boss, Hyd roller cam w STD forged assem. Yes, this is the intake those of you that race in a conventional head class have been looking for RPM range for the Sniper intake manifold is 4,000-8,500. 08-14-08 09:12 AM - Post# 1499255 1973 Bone stock BBC 049 casting number heads w slighly better springs,stock retainers and locks, nylon seals Also I am not really sure which head variation to use "oval port canted stock valves and ports"?. Spray it with a light coat of white paint. For sale 409 engines, 396 blocks heads engines, 427 block heads engines, 454 blocks heads engine and other parts for 1962-1972 Chevy big block muscle cars. 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. E-STREET - 170cc FORD FEATURES: Ideal for operating in the idle to 5500 rpm range Use with hydraulic flat tappet camshafts,. 7:1 aluminum roller rockers and a. Changing to 502 oval aluminum heads, and was going to use this intake. (These heads are becoming scarce as they were replaced early in production with “peanut port” versions. * No Risk Guarantee * Don't want to take a chance on used parts? Neither would we. "Peanut" oval port heads (mild port work) 2. 700" lift and is the ultimate street/race weapon without having to step up to a rectangular port design. Rectangular port can be adapted to oval port with no power loss. $7655 w core 496 / 8. These oval port heads will support over 540 hp with 9. The 300cc oval-port heads are ideal for 427-540-cubic-inches. BuyAFR : AFR BBC Race Heads - AFR SBC Race Heads AFR BBC Race Heads AFR SBF Race Heads AFR LS1 Cylinder Heads AFR Master List AFR SBC Race Heads AFR BBC Race Heads AFR SBF Race Heads AFR LS1 Cylinder Heads Supporting Components BuyAFR, AFR, airflow,airflow research, research,cylinder heads,. I am all well too familiar with spending a shit ton of money to do efi right. This information has been gathered from several sources and has not been verified. 08-14-08 09:12 AM - Post# 1499255 1973 Bone stock BBC 049 casting number heads w slighly better springs,stock retainers and locks, nylon seals Also I am not really sure which head variation to use "oval port canted stock valves and ports"?. especially old oval ports. also a local guy here ran pocket ported big valve ovals on a fairly high compression 454 and got deep into the bottom 10's here as well with a really light nova. 75 to 1 cast pistons stock rods stock cast crank Edelbrock torker intake 552/555 230/236 @. 700 long H-Beam connecting rods are both 4340 forged and are paired with forged DIAMOND pistons. 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. Heads were done at the same time with new seats, guides, bowls blended and surfaced. 7:1 aluminum roller rockers and a. Is there such a thing? Everything I find is either aluminum or rectangle port. I was going to order summit full length headers but they are oval port. The BRODIX Head Hunter series represents the cutting edge of conventional big block technology. They've been sitting for the last year, on a shelf, within my garage. CYL HEAD BBC PERF RPM OVAL PORT FOR HYD FLAT TAPPET NAT FINISHApplication Summary:1963 Chevrolet Bel. 385 rods with a 4. We applied proven Pro Stock technology to produce big block heads that out perform the competition – yet Dart heads can be used with most off the shelf pistons, manifolds, headers and valve train components. I have for sale a set of good used, recently removed BBC oval port cylinder heads. Heads are perfect and ready to run. 700" lift and is the ultimate street/race weapon without having to step up to a rectangular port design. using high pressure moly lube or 70ft. qtr window trim and. Pro Filer Sniper Big Block Chevy Heads with 320cc Intake Runner, 2. If you're going to build your dream engine you want to build it with Raymac Racing Engines. See Don Chart. We also offer our new line of rectangular port bbc Bravo heads in our other listings. HOME LTZ-400 MINI BIKES VOLKSWAGEN Rectangle and Oval port for BBC. 550" maximum lift - not compatible with hydraulicroller camshafts 289-302 with 7/16" head bolts require #9680 head bolt kit 1. Get your Bbc 540, qualified orders ship free. 454 BBC motor oval port complete oil pan to intake 18k original miles block number [PHONE NUMBER HIDDEN] block and heads are solid chrome valve covers edelbrock hi rise intake also available is a lunati voodoo hi performance. The picture above shows a rectangular port intake gasket. PART NUMBER, TEK-1017-1275-BBC-50THIS IS EXACTLY YOU NEED WHEN INSTALLING A SET OF ALUMINUM HEADS ON YOUR BIG BLOCK CHEVY ENGINE. This is the latest in design and technology in dual-plane manifolds. an old racer trick is to put a rectangle port manifold on oval port heads just make sure you get a quality gasket, or just get the oval port one The Weiand is definitely an option. These heads are 100% cnc ported hand finished utilizing features such as raise, oval-shaped intake ports that flow amazing cfm numbers. Weiand BBC Stealth Manifold - Oval Port $295. Huge improvement over the 285-300 these heads flow out of the box! These heads went to Scott Ozier and his Blown Camaro. 3 53031 Professional Products Hurricane 375 CFM 400 CFM 430 CFM 478 CFM Shipping Address. 08-14-08 09:12 AM - Post# 1499255 1973 Bone stock BBC 049 casting number heads w slighly better springs,stock retainers and locks, nylon seals Also I am not really sure which head variation to use "oval port canted stock valves and ports"?. These heads should be torqued to 65ft. I found a guy that has the gumpy Jenkins oval port heads for sale and was wondering how good these heads are. Casting and stamping are in the pictures. 650 lift assembled your choice of 4 or 6 bolt heads. The Brodix oval-port heads (PN 2030002) feature 335cc intake ports. 25" intake and 1. The 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. Port For Sale. BES Racing Engines now offers complete cylinder head packages. 750 lift pair $2150. Chevy Top End Kit 396 427 454 496 502 Bbc Aluminum Heads Oval Port 540 750 Lift. Rectangular port heads make MUCH more power, regardless of CID, over 3,500 RPM. Can hear engine run as it's mounted on an engine run in stand. Trick Flow makes a 280cc oval port, and 320cc or 360cc rectangle port cylinder heads specifically so that engine builders can pick the right cylinder head for their application. Bought them for a project but I'm going a different route and don't need them anymore. Block is a two bolt standard bore of 4. 72 Exhaust - 118 CC Oval Port Closed chamber. Intake Manifold is optimized for engines 468-540cid and larger with BBC cylinder heads such as our Sniper and Sniper X with deck heights of 9. Will also work fine on oval port heads ( use rect. 5:1 compression when used as part of the Edelbrock Total Power Package. 7:1 aluminum roller rockers and a. I know these are for mopar but they look like they might work. you put an oval port head on that motor and it will be done by 5000-5500 dont waste money on old 781 heads when you can get aluminum for a little bit more. Every head is ported to the customers needs which doesn't n. Castings # 60459 6045 These heads flow 328/349 @. BBC 582 finished and ready to Ship our Monday. Just like our 572 Hemi, engines can be detailed to appear OEM stock or given a more Pro-Street or race look. Each head receives a 25 point quality control check prior to being shipped to ensure maximum quality. Includes the latest news stories, results, fixtures, video and audio. 700 with a 2. 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. We straightened up the valve angles to move away from the factory bath tub chambers and to a smaller more efficient combustion cha. BIG BLOCK BBC CHEVY 454 496 300cc OVAL PORT ALUMINUM HEADS ASSEM. do NOT contact me with unsolicited services or offers. I have for sale a set of good used, recently removed BBC oval port cylinder heads. 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. Sort: Display: Displaying 1 - 12 of 17 results (Oval Port) Cylinder Head + Add to Cart. This potent rat motor comes standard with Brodix square-port heads, T&D Shaft Rockers, Diamond Pistons, Callies crank, GRP rods, titanium valves, and is topped off with an APD. 1-how are these victor/musi heads? Never considered them before but I found a really good deal on a set of crower rockers that fit only these heads, they do come out of the box with stainless valves, yay or nay? 2-is a bird big enough or should I be starting with a buzzard? Port injection also? 3-compression ratio, 11-12:1 good number to shoot for?. 880" exhaust valve job. Dart big block heads deliver superior performance without the hassles of welding and modifying stock castings. i have got a set of oval port/ open chamber heads, 820 casting ( comparable to 049 and 781's) heads are untouched. 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. BBC 454 Weiand 8018 w/gaskets, Lunati Cam, 770cfm Holly, and Air Cleaner Combo BBC 454 Weiand. 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. an old racer trick is to put a rectangle port manifold on oval port heads just make sure you get a quality gasket, or just get the oval port one The Weiand is definitely an option. 550" maximum lift - not compatible with hydraulicroller camshafts 289-302 with 7/16" head bolts require #9680 head bolt kit 1. do NOT contact me with unsolicited services or offers. 300 SBC Iron sets available World Products, OEM, Vortec Bow tie. Cylinder Heads. They're pretty much dead below that, except in engines over 500 CID. 510 lift Exh 307* dur –. 1 liter Gen7 Dart Big M MerCruiser long blocks $5775 w core 540 / 672HP Custom order only $9650 no core. When this new cylinder-head design was established, Chevrolet then decided to create two distinct versions of the cylinder head. They even offer a set of RPM, oval-port heads with small (102cc) chambers to maximize the static compression on these low-compression, flat-top piston, factory big-blocks. Telling the difference between the various SBC heads can be hard if all there is to go on is what they look like. FREE SHIPPING IN THE CONTINENTAL USA. $7655 w core 496 / 8. 06 valve is. Each head receives a 25 point quality control check prior to being shipped to ensure maximum quality. Find Port In Stock Now. 750 lift pair $2150. CYL HEAD BBC PERF RPM OVAL PORT FOR HYD FLAT TAPPET NAT FINISHApplication Summary:1963 Chevrolet Bel. 1 liter Gen7 Dart Big M MerCruiser long blocks $5775 w core 540 / 672HP Custom order only $9650 no core. CFE 14 Degree Spreadport BBC. I have a pair of bbc oval port heads off my 454. If the part does not fit or you do not like the look of it, feel free to return it. Find the best aluminum bowtie street cylinder heads for your big block engine from Chevrolet Performance. - 24 Degree intake valve angle (stock angle is 26 deg. very inefficient on old iron BBC. **Can hot tank/machine clean like in last photo for an additional $150** We have hundreds of bare cylinder heads. New valves an new springs. 25 stroke crankshaft makes 489ci. You will receive the correct felpro oval port intake gaskets. How much horse power and torque would a 30 over 454 with 336781 gm oval port open chamber heads a crane energizer 282 cam edelbrok torker 2 manifold trw 225 dome pistons 700 holley dp carb make?. BBC heads (14081045 - 454 - 1987-1987 - Oval Port Open chamber, 1978-1987) with factory intake manifold and carburetor. 250" intake valve job and 1. ) AFR’s smallest oval port head has a 265 cc intake port volume and flows up to 350 cfm – a whopping 30 percent more airflow through basically the same size port. Customised designed port configuration to suit your own needs. 07 Intake - 1. Changing to 502 oval aluminum heads, and was going to use this intake. Chevrolet Top - $1,259. We applied proven Pro Stock technology to produce big block heads that out perform the competition – yet Dart heads can be used with most off the shelf pistons, manifolds, headers and valve train components. Bore x Stroke. 1-how are these victor/musi heads? Never considered them before but I found a really good deal on a set of crower rockers that fit only these heads, they do come out of the box with stainless valves, yay or nay? 2-is a bird big enough or should I be starting with a buzzard? Port injection also? 3-compression ratio, 11-12:1 good number to shoot for?. 88-inch performance valves used in high-performance rectangular-port heads. (These heads are becoming scarce as they were replaced early in production with “peanut port” versions. 1063 casting bbc oval port heads came off 69 chevelle 396 been completely resin new stainless. They will still benefit from some port work. 540 CID Big Block Chevy engine featuring a new Dart™ Big M block. Horsepower. 50 and 45 degree valve job available. Rectangular port can be adapted to oval port with no power loss. Sonny's Racing Engines has more than 50 years of experience building winning Drag Racing and Truck Pull Engines. I think I built the oval track 318’s for 3 years, then the rules changed and allowed 360’s. All heads feature 6-bolts per cylinder and use CHE seats and guides. Weiand BBC Stealth Manifold - Oval Port $295. Big Block Cylinder Head Casting Numbers With the level of performance being the defining factor in identifying big block Chevy cylinder heads it's important to understand some very key factors in different designs. BBC BIG BLOCK CHEVY FACTORY ALUMINUM HEADS 3946074 SNOWFLAKE Oval port heads for the street are the way to go IMHO. $7655 w core 496 / 8. 496 / 525HP Gen5 w Hyd roller cam & square port Alum Heads $6960 outright 502 / 500Hp Gen6 Short blocks with STD GM Forged assembly No Cam $4450 502 / 585HP Gen6 w fuel pump boss, Hyd roller cam w STD forged assem. Every head is ported to the customers needs which doesn't n. 5:1 compression when used as part of the Total Power Package Semi-open chamber design maximizes efficiency with streetable compression ratio Smaller-than-stock 11/32" valve stems promote excellent flow and lighter valve weight. do NOT contact me with unsolicited services or offers. heads casting # 3931063 , oval port suffix code LJ I personally pulled this motor from an 1969 impala SS 20 yrs ago, ran when pulled. I'm running GM iron 781 large oval port truck heads on my 414 ci destroked 427 bbc. We straightened up the valve angles to move away from the factory bath tub chambers and to a smaller more efficient combustion cha. I would do more checking around on the numbers, ls7 heads are 627 2990 G M 1T block 14015445. Combustion chamber size was measured at 117cc. Find our selection variety of 515hp oval port in stock today. 1 liter Gen7 Dart Big M MerCruiser long blocks $5775 w core 540 / 672HP Custom order only $9650 no core.