Availability
AFR's 335cc BBC Enforcer cylinder heads feature their Permanent Mold "As-Cast" Technology surfaces on the intake runners, exhaust runners, and combustion chambers that allow for extremely accurate and repeatable port location/performance. These budget-friendly heads are perfect for your 509 to 540 cu.in. operating below 6,500 rpm. They come fully assembled with the identical components found in AFR's higher end CNC-ported cylinder heads—such as ARP rockers studs, PAC Racing springs, Viton® valve seals, AFR adjustable guide plates, machined bead valve locks (not stamped), hardened spring seats, and AFR's one-piece 8mm 21 4N stainless steel valves. Order the cylinder heads recommended for your year/make and engine application.
( 5 )
$664.65
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$1,023.75
AFR 265cc Oval Port Magnum BBC cylinder heads are designed to be used on engine displacement up to 468 cu. in. operating at or below 6,200 rpm—providing tons of bottom-end torque, tremendous throttle response, and great all-around power. Recommended for street, strip, or towing applications, these torque monsters can flow 354 cfm at 0.650 in. lift. These units feature a 3/4 in. thick deck, along with reinforced rocker stud bosses, and thick, rugged castings. Want high-flowing power? Then choose these 265cc Oval Port Magnum BBC cylinder heads from AFR. Additional features include: * Intake runners and exhaust ports are partially CNC-machined * Competition 5-angle valve job * 3/8 in. guideplates * A356 aluminum material
( 9 )
$2,484.30
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$3,214.05
Edelbrock Performer RPM aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also include hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. These heads offer improved power throughout the RPM range for greater throttle response and top-end horsepower. Countless options are available; order the model recommended for your vehicle and engine application.
( 159 )
$780.50
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$1,558.50
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. They feature an oval intake port design that produces excellent low and midrange torque and horsepower, plus Fast As Cast® runners for near-CNC-ported performance for about the same money as standard cast heads. Efficient heart-shaped, CNC-profiled combustion chambers have CNC bowl blended valve seat transitions to promote high velocity and huge airflow volume, plus 24 degree valve angles with 4 degree side cants to further increase airflow. Other features include .300 in. raised exhaust ports, and extra-thick decks and walls for porting. Trick Flow® PowerOval® 280 cylinder heads are available fully assembled or as bare castings. Sold individually.
( 4 )
$999.99
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$1,599.99
Summit Racing™ precision cast cylinder heads are made from tough A-356 aluminum alloy and feature Permanent Mold "As-Cast" technology. Port accuracy is unrivaled--meaning CNC porting is not required to provide superior flow. The result is CNC-ported performance at a fraction of the price! We start with precision CNC-finished faces and bolt holes for accuracy and fitment. American craftsmen expertly size and install the manganese bronze valve guides and interlocking ductile iron seats before finishing with a competition-grade valve job. From there, the decks are given a final pass for superior finish. They are finish-assembled in the USA with top-quality components like PAC Racing springs, fasteners, one-piece 21 4N stainless valves, machined locks, Viton® seals and chromoly steel retainers. The final result is the performance you want and Summit Racing™ quality you TRUST!
( 11 )
$899.99
Trick Flow® PowerPort® 365 heads are best suited for 500 plus cubic inch extreme performance big block Chevy engines, and deliver exceptional power potential and durability. The heads feature top-of-the-line CNC Competition Ported rectangular runners with a high resolution finish for maximum airflow and strong mid- to high-rpm performance. The fully CNC-profiled, heart-shaped combustion chambers have CNC bowl blended valve seat transitions to promote high-velocity and huge airflow volume, plus 24 degree valve angles with 4 degree side cants to further increase airflow. Other features include premium, high-strength aluminum castings, extra-thick decks and walls for porting, and adjustable guideplates. Trick Flow® PowerPort® 365 cylinder heads are available fully assembled or as bare castings. Sold individually.
( 2 )
$1,489.99
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$1,799.99
Brodix BB-2 Xtra cylinder heads flow over 375 cfm with only the bowls blended and the intake ports matched to the gaskets. The intake ports have been contoured and matched for use in today's 540 cu. in. or larger bracket-racing big block Chevy engines. The exhaust ports are raised 0.600 in. higher than stock. These cylinder heads will accept all standard pistons, intake manifolds, and rocker arms, and the valve cover rails are raised to prevent leakage. They're available in both as-cast and CNC-ported versions.
( 8 )
$955.99
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$2,941.99
Edelbrock Performer RPM 454-O high-compression cylinder heads offer smaller ports for bigger performance. Designed for big block Chevy's with oval ports, these cylinder heads feature unique oval intake ports that flow similar to rectangular ports but the smaller size provides excellent seat-of-the-pants performance plus crisp throttle response! And, the 100cc chamber volume is ideal for your high-compression application. Both the intake and exhaust ports of these Performer RPM heads have been profiled for improved air flow and they have smaller-than-stock valve stems for less weight and excellent flow. More flow, more power, and more performance for your big block application comes with a set of Edelbrock Performer RPM 454-O high-compression cylinder heads.
( 13 )
$1,214.50
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$1,251.50
Brodix Race-Rite rectangular port cylinder heads for big block Chevys bolt on directly in place of your stock heads. Because the stock exhaust ports are in the stock location, you don't have to worry about header or manifold interference. Brodix aluminum heads are great for high-horsepower applications.
( 8 )
$885.99
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$2,821.99
AFR 385cc Magnum BBC competition racing heads will feed your large displacement, high-rpm race engine the air it needs to deliver monster performance. The 385cc Magnum features AFR's trademark .750 in. thick head deck, A356 aluminum castings and Titanium retainers, as well as 100 percent CNC-ported intakes, exhausts, and combustion chambers to deliver the big flow characteristics to provide you with the power you need to win! Keep your monster engine both strong and powerful—allow it to feast on the plentiful airflow of the AFR 385cc Magnum BBC competition racing heads.
Not Yet Reviewed
$4,601.10
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$5,344.50
All Edelbrock aluminum cylinder heads feature threaded inserts in the rocker studs and exhaust manifold bolt holes for superior strength and durability. They also include hardened seats, bronze valve guides, and fully machined valve cover rails for a more consistent gasket seal. They offer improved power throughout the rpm range for greater throttle response and top-end horsepower. The intake and exhaust runners are CNC-machine profiled for superior flow and performance.
( 40 )
$1,251.50
Designed for 396-502 c.i.d. big block Chevy engines, these Edelbrock cylinder heads include heavy-duty exhaust valves that provide the added durability needed for marine applications, and have one-piece, stainless steel intake valves with hardened tips and swirl-polished heads. The high-velocity flow capabilities of Edelbrock Performer RPM cylinder heads provide increased torque across a wide rpm range that's ideal for marine use. They're cast from A356 aluminum and heat-treated to T6 specs. Their oval-port heads have 110cc chambers and their rectangular port heads have 118cc chambers. Both the oval and rectangular port heads are hard-anodized to protect the aluminum in the harsh marine environments.
( 2 )
$1,780.50
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. Because the stock exhaust ports are in the stock location, you don't have to worry about header or manifold interference. These aluminum heads are great for street and strip applications. They feature 119cc combustion chambers, air conditioner bracket holes, solid phosphorous bronze guides, high-torque 270cc intake ports, a fully machined valve cover rail, and bulletproof rocker stands.
( 24 )
$974.99
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$1,713.99
Are you looking for big torque and horsepower numbers? AFR's 325cc Magnum big block Chevy line of medium-volume intake runners will provide you with exactly that. The phrase "having your cake and eating it too" would certainly be appropriate with their moderately sized intake runners producing tremendous flow figures across the entire lift range. These high-flow/high-velocity ports provide extreme versatility and fill the needs of many applications. From a max-effort high-compression 454 to a 605 c.i.d. low-rpm marine application, these aluminum cylinder heads would be a great choice. AFR Magnum heads would also be ideal in larger cubic inch Pro Street applications with their broad torque range, as well as their significant rpm and horsepower capabilities. These cylinder heads will work best with a primary operating range of 3,000-7,000 rpm (this range is an average and will vary with engine displacement as well as component selection). These 325cc heads come standard with AFR's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.300 in. intake and 1.880 in. exhaust valves. The standard combustion chamber volume is 119cc on these AFR's 325 "as-cast" pieces. The heads are available with an optional 114cc combustion chamber as well.
( 1 )
$3,158.40
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$4,050.90
AFR 300cc Magnum BBC cylinder heads are suggested for aggressive builds. They boast 100 percent CNC-ported intake, exhaust, and chambers—as well as A356 aluminum casting and high-quality components throughout. These oval port competition packages are available with hydraulic or solid roller springs; and bare or assembled style.
( 3 )
$3,690.75
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$4,336.50
If huge horsepower is what you're searching for, then AFR 345cc Magnum BBC cylinder heads will certainly deliver. They're recommended for radical street/strip, Pro Street, or racing applications on engines up to 572 cu. in. operating below 7,000 rpm—and are capable of flowing 400 cfm at 0.700 in. of lift. These A356 aluminum heads are designed for maximum horsepower and rpm capability, with an average primary operating range of 3,500-8,000 rpm; they also provide impressive torque figures. AFR recommends the use of .120 in. wall pushrods and full-roller rocker arms for strength. It's vital that you check clearance of all moving parts due to the vast array of rocker arms, lifters, cams, springs, etc. Don't forget to check pushrod-to-head clearance, as well as any potential interference from your rocker arms and spring assemblies prior to final engine assembly. AFR 345cc Magnum BBC cylinder heads come standard with AFR's trademark 3/4 in. thick cylinder head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.300 in. intake and 1.880 in. exhaust valves.
( 4 )
$3,454.50
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$4,050.90
Inspired by Dart's championship winning Pro Stock designs, Dart Pro 1 aluminum cylinder heads cover a wide range of applications from street cars and trucks to all-out racing. Heads designed for street performance and mild bracket racing offer excellent mid-range torque and power, and are excellent for heavier vehicles. Competition heads are ideal for maximum effort naturally aspirated, big boost forced induction, or nitrous applications. Dart Marine Pro 1 cylinder heads feature an exclusive chromate surface finish to inhibit corrosion and extend the life of the head. They are also fitted with Inconel exhaust valves to withstand the extended running time and temperatures typical of marine usage. Dart's as-cast ports flow more than many ported designs at a much more affordable price. But they also offer fully CNC-machined heads with every intake port, exhaust runner, valve bowl, and combustion chamber shaped by their 5-axis, computer controlled machining centers to produce compound curves and complex shapes that no human could duplicate with a hand grinder. Available bare or fully assembled, long-wearing bronze valve guides, screw-in studs, multi-angle intake seats with hardened, radiused exhaust seats are standard on most heads. Assemblies typically include stainless steel valves, premium springs, locks, retainers, guide plates, and seals. Many Pro 1 heads include race-proven features such as improved spark plug location, extra-long intake valves, raised exhaust ports, and fast burn chambers. They are offered an extensive variety of valve angles, intake port volumes and shapes, exhaust port locations, valve sizes, and chamber volumes.
( 10 )
$1,520.33
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$4,257.19
FLOTEK 320cc big block Chevy cylinder heads are a powerful addition to your build right out of the box! They feature a thick deck design and high-capacity water jackets, making them a reliable option for street or strip applications. The heads can be used with stock pistons and feature raised valve cover rails (exhaust port location is raised 0.500 in.). FLOTEK 320cc BBC cylinder heads are a great choice for adding horsepower! Models are available assembled or bare for a variety of engine applications. NOTE: This item is not sold as a pair; this is a single cylinder head.
Not Yet Reviewed
$499.00
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$999.00
Welcome to a new class of high performance cylinder heads--BluePrint Muscle Series! These aluminum heads are assembled with the perfect match of components for outstanding, trouble-free performance. Plus, they give you more power behind the wheel and in your wallet! These all-cast heads are designed for hydraulic flat tappet and hydraulic roller cam engines with hefty intake runners, stainless steel valves, Viton® seals, and dual springs. BluePrint Engines stand in front of the class, offering both performance and cost-conscious enthusiasts a powerful alternative--Muscle Series cylinder heads.
( 86 )
$1,199.00
World Products Merlin cylinder heads for big Chevys combine large intake runners with open combustion chambers to produce good torque and low-end power. The heads are available assembled or bare; rectangular or oval; with or without intake/exhaust valves; and other options. Order the model that best suits your application.
( 7 )
$1,123.15
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$2,624.42
Edelbrock Performer RPM bare NHRA Stock/Super Stock cylinder heads deliver great throttle response and power from 1,500 to 6,500 rpm, and with winning results. Offering the best in quality and performance, these bare heads are cast and heat-treated in the Edelbrock Foundry and machined in their manufacturing facility. Designed with the latest computer technology, they have highly efficient ports and state-of-the-art combustion chambers shapes for improved performance throughout the rpm range with great throttle response and top-end horsepower. Edelbrock Performer RPM bare NHRA Stock/Super Stock cylinder heads include top-quality features, like threaded inserts in rocker stud and exhaust bolt holes for superior strength and durability, and manganese-bronze valve guides with ductile iron valve seats.
( 1 )
$782.50
PROMAXX Performance Maxx Series big block Chevy cylinder heads are custom designed to satisfy demands of the big block Chevy world, while retaining high-quality craftsmanship and reasonable prices. Available assembled or bare, these heads feature ultra-smooth 356 T-6 aluminum castings with hand-blended valve bowls, efficient chamber designs, 5-angle valve jobs, and diamond-honed bronze valve guides. Assembled heads include 21-4N swirl-polished valves, springs, retainers, 7/16 in. rocker studs, guide plates, and seals. Level up your ride with a pair of PROMAXX Performance Maxx Series big block Chevy cylinder heads.
Not Yet Reviewed
$1,564.00
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$2,879.00
FLOTEK's 290cc big block Chevy cylinder heads with 112cc combustion chambers are recommended for moderate street or street/strip BBCs with displacements up to 509 cu. in. operating at or below 6,500 rpm. It may be necessary to check clearance and slightly modify some domed aftermarket pistons due to the efficient heart-shaped combustion chamber on these heads (most of the newer designed dome profiles will clear). FLOTEK recommends removing material from the piston and not the cylinder head, as the combustion chamber shapes are very critical to flow—altering the cylinder head can unfavorably affect flow and power performance. FLOTEK's medium-sized 290cc oval port cylinder heads are designed for 3/8 in. pushrods with 0.120 in. wall thickness. They're available assembled or bare for a variety of engine applications. NOTE: This item is not sold as a pair; this is a single cylinder head.
( 1 )
$799.00
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$1,349.00
Pro-Filer big block Chevy Sniper X cylinder heads are fully CNC-machined for optimum performance. They're designed to be used with standard big block Chevy parts, including stud mounted rockers and pistons or the most wicked parts in the industry. They flow over 460 cfm on a 375cc runner and over 325 cfm on the exhaust. Features include a 5 angle valve job with .350 in. longer intake and .100 longer exhaust valves, 119cc heart-shaped combustion chambers, and 24 degree OEM X275 class accepted valve angles. Wake up your 502 c.i.d. or larger motor with the incredible performance of Pro-Filer big block Chevy Sniper X cylinder heads. Additional features: * Spark plug locations are machined for a gasketed 3/4 in. reach plug NGK R5671A-7 or colder * Requires a 1 in. longer head bolt or stud next to exhaust ports *Available with either 355cc or 375cc intake runners and steel or copper alloy valve seats
Not Yet Reviewed
$1,980.51
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$4,793.50
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