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PROMAXX Performance Freedom Series Big Block Chevy Cylinder Heads

PROMAXX Performance Freedom Series big block Chevy cylinder heads offer exceptional quality at an unbelievable price. They're machined from high-quality aluminum and most come assembled with the finest parts (bare heads are also available). The heads feature one-piece stainless steel intake and exhaust valves, CNC bowl-blended intake runners, and combustion chambers. Freedom heads also include 7/16 in. screw-in rocker arm studs and guideplates for 3/8 in. pushrods. Order the heads recommended for your engine application.

4.33 out of 5 stars ( 3 )

$2,144.00

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$3,085.00

Pro-Filer Performance Products Big Block Chevy Sniper X Cylinder Heads

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

$2,064.75

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$4,793.50

PROMAXX Performance Maxx Series Big Block Chevy Cylinder Heads

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

$2,144.00

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$2,879.00

PROMAXX Performance Shocker Series Big Block Chevy Cylinder Heads

PROMAXX Performance Shocker Series big block Chevy cylinder heads are professional designed cylinder heads utilizing the latest CNC porting tools and techniques. These heads out flow the competition at a price that cannot be touched. The 340 heads will flow over 415 cfm and the 370 heads will flow over 450 cfm, so your engine will never be starved for air. Shock the competition without breaking the bank by ordering a pair of PROMAXX Performance Shocker Series big block Chevy cylinder heads. Features, items, and specs: * 340 or 370cc fully-ported runners * 5-angle valve job * 24 degree intake valve and 15 degree exhaust valve * Diamond-honed guides * Large spring pockets * Multiple spring options * 21-4N one-piece swirl-polished back-cut stainless steel valves

5.0 out of 5 stars ( 1 )

$2,367.00

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$3,968.00

Brodix Cylinder Heads BB-2 Plus Cylinder Heads for Big Block Chevy

These Brodix Cylinder Heads BB-2 Plus heads work well with a heavy car and a smaller engine. The intake ports flow over 340 cfm with only the bowls blended and the intake ports matched to the gaskets. The combustion chambers are properly shaped for use with either methanol or gasoline, preventing detonation. These cylinder heads accept all standard pistons, intake manifolds, and rocker arms, and the valve cover rails are now raised to prevent oil leakage.

5.0 out of 5 stars ( 9 )

$2,091.99

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$2,941.99

Edelbrock Total Power Package 540 HP Big Block Chevy Top-End Engine Kits

Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.

3.78 out of 5 stars ( 18 )

$3,710.95

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$4,799.95

Brodix Cylinder Heads BB-3 Xtra Cylinder Heads for Big Block Chevy

Brodix Cylinder Heads BB-3 Xtra heads take conventional big block Chevrolet technology a step further. They feature a valve angle that is rolled 2 degrees from the standard location, and newly designed intake and exhaust ports. The BB-3 Xtra heads are available in several configurations. Standard features include: * High-velocity intake ports * New fuel-efficient chambers * Extra-thick deck * High valve cover rail

Not Yet Reviewed

$2,023.99

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$3,039.99

Pro-Filer Performance Products Big Block Chevy Sniper Cylinder Heads

With 24 degree OEM X275 class accepted valve angles, 119cc heart-shaped combustion chambers, 0.300 in. raised intake ports, and aerospace casting technology, Pro-Filer big block Chevy Sniper cylinder heads are ready to rumble. They're available with 290cc, 320cc, or 370cc intake ports flowing to 400cfm as cast, steel, or copper valve seats, and accept up to 1.625 in. O.D. springs. For powerful out-of-the-box performance, install Pro-Filer Big Block Chevy Sniper cylinder heads.

Not Yet Reviewed

$2,399.95

Pro-Filer Performance Products Big Block Chevy Sniper XL Cylinder Heads

When it comes to ultra-high performance engines capable of producing over 1,200 hp, you need Pro-Filer big block Chevy Sniper XL cylinder heads. These 24 degree X275 class accepted valve angle heads are 100 percent CNC-ported and combine 420cc intake runners with a 2.400 in. intake valve to produce 500+ cfm, while maintaining a conventional layout. Designed for 582 c.i.d. or larger engines, Sniper XL heads have an updated flat bar valvetrain for a one-piece rocker bar, with 12 bolts to provide stability at higher rpm. Features include 119cc heart-shaped combustion chambers, 11/32 valve guides, copper alloy seats, and a 2.400/1.850, 50 degree, 5-angle high performance valve job. For wicked horsepower with amazing strength, install Pro-Filer big block Chevy Sniper XL cylinder heads. Additional features: * Spark plug locations are revised for improved flame travel and 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

Not Yet Reviewed

$2,537.78

Brodix Cylinder Heads BB-2 Xtra Cylinder Heads for Big Block Chevy

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.

4.75 out of 5 stars ( 8 )

$2,091.99

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$2,941.99

FLOTEK Jailbird 390cc CNC Big Block Chevy Cylinder Heads

FLOTEK introduces the Jailbird 390cc CNC big block Chevy cylinder heads. With CNC porting to offer superior performance, the Jailbird 390 will deliver for larger cubic inch engines of 565-640, allowing aggressive cam profiles to make maximum power. Touting an impressive 467 cfm at .900 lift with professional bowl blending and a competition 6-angle valve job to release its full potential, this is the right head for you! Also offered as CNC without bowl blending, the Jailbird 390 produces 436 cfm at .700 lift with 4.625 in. bore fixture and 426 cfm on 4.50 in. bore fixture. Either way, you can't go wrong with the FLOTEK Jailbird 390—a perfect choice for Power Header, Nitrous Super Charge, Jacks, and Boosts. 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

$2,099.00

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$2,399.00

Brodix Cylinder Heads BB-3 Cylinder Heads for Big Block Chevy

Brodix Cylinder Heads BB-3 heads work well with heavy cars and small engines. The intake ports flow over 366 cfm with only the bowls blended and the intake ports matched to the gaskets. The combustion chambers are properly shaped for use with either methanol or gasoline, preventing detonation. These cylinder heads accept all standard pistons, intake manifolds, and rocker arms, and the valve cover rails are now raised to prevent oil leakage.

Not Yet Reviewed

$2,204.99

Chevrolet Performance Bowtie Big Block Chevy Cast Iron Engine Blocks

Chevrolet Performance Bowtie big block Chevy cast iron engine blocks are CNC-machined. The race-prepared blocks feature blind head and accessory mounting bolt holes, a deck configuration that enables the use of any big block Chevy cylinder head—and cylinder bores that may be safely bored to a 4.600 in. maximum diameter, while maintaining a .250 in. minimum cylinder wall thickness. These engine blocks differ from the production-machined Bowtie versions in certain areas; they start from raw castings and are not "conversions." They also use a rear seal adapter to convert the Gen V/VI one-piece rear main seal to a Mark IV type 2-piece seal that facilitates the use of a widely available Mark IV style crankshaft. The intermediate caps also feature 16 splayed outer bolts, which anchor the caps into the strongest section of the blocks and prevent bearing cap movement under high loads. The main oil gallery on these blocks is relocated and enlarged to a 9/16 in. diameter to allow increased oil flow through the block. These Bowtie blocks have inner head bolt bosses, which allow for better retention of the cylinder heads in high-horsepower applications when the cylinder heads "lift" from the blocks due to high cylinder pressures. Order the style and deck height preferred for your application.

4.83 out of 5 stars ( 6 )

$4,085.68

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$4,291.31

Edelbrock Total Power Package 354 HP Big Block Chevy Top-End Engine Kits

The Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.

4.0 out of 5 stars ( 1 )

$4,302.95

Edelbrock Total Power Package 611 HP 502 Big Block Chevy Top-End Engine Kits

The Edelbrock Power Package concept is second to none. To make things easier in parts selection, Edelbrock has taken the guesswork out of top-end component selection by actually placing the power package components together in complete kits. They include almost everything you need to make serious horsepower. These kits are available with different cams, intakes, and heads to deliver the torque and horsepower you're looking for. Horsepower output will vary depending on combinations of accessories used.

Not Yet Reviewed

$4,957.95

Dart Big M Sportsman Big Block Chevy Cast Iron Bare Blocks

The foundation for a better big block build begins with Dart Big M Sportsman Big Block Chevy cast iron bare blocks. Dart engineered the Big M to be the strongest, most reliable, and easiest to build big blocks on the market. The Dart Big M Sportsman blocks feature: * Standard 9.800 in. and tall 10.200 in. deck heights available for Stroker engines * Standard 4.250 in., 4.500 in., or 4.600 in. bore sizes with Siamesed extra thick cylinder walls to resist cracking and improve ring seal (minimum .300 in. thick with 4.625 in. bore) * Uses +.300 in. tall Gen VI style lifters. Modifications for Gen IV style are also available * Scalloped outer water jacket walls improve coolant flow around the cylinder barrels to equalize temperatures * 4-bolt ductile iron main caps have splayed outer bolts for extra strength * True priority main oil system lubricates the main bearings before the lifters * Oil filter pad is drilled and tapped for an external oil pump * Lifter valley head stud bosses prevent blown head gaskets * Rear main cap uses standard oil pump and two-piece seal, no adapter required * Mechanical fuel pump boss, clutch linkage mounts, and side and front motor mounts simplify installation in chassis * Dual oil pan bolt patterns fit standard and notched oil pans * Coated cam bearings, freeze plugs and dowels not included * Small bore 396 version available

Not Yet Reviewed

$3,599.99

On Sale

AFR 335cc Magnum BBC Cylinder Heads

Are you looking for big torque and horsepower numbers? AFR's 335cc 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 (AFR CNC 335 heads flow 410 cfm!). 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). The 335cc 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 for the fully CNC-ported 335cc is 121cc. They are available with an optional 114cc combustion chamber as well.

5.0 out of 5 stars ( 3 )

$4,345.00

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$4,938.00

$4,127.75

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$4,691.10

On Sale

AFR 325cc Magnum BBC Cylinder Heads

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.

5.0 out of 5 stars ( 1 )

$3,158.00

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$4,051.00

$3,000.10

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$3,848.45

On Sale

AFR 457cc Magnum BBC 18 Degree Cylinder Heads

AFR 457cc Magnum BBC 18 degree cylinder heads were built specifically for high horsepower race applications. The Magnum 18 heads flow an impressive 498 cfm at 1.000 in. lift with 457cc runners, 90cc combustion chamber, and 143cc exhaust. The intake ports are raised .500 in. with the valves rolled to 18 degree, resulting in unparalleled under-the-curve flow numbers. These big block Chevy heads are ideal for 540 cu. in. or larger race engines. AFR has been defining what it means to make power on Chevy engines for years. Now you can strap on a pair of their best performing, highest flowing heads, their 457cc Magnum BBC 18 degree cylinder heads.

Not Yet Reviewed

$2,666.00

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$3,274.00

$2,532.70

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$3,110.30

On Sale

AFR 357cc Magnum BBC Cylinder Heads

If huge horsepower is what you are searching for, AFR 357cc Magnum aluminum cylinder heads will certainly deliver. With AFR's fully CNC-ported 357cc heads flowing 425 cfm, they represent the ultimate in airflow for your big block Chevrolet. These cylinder heads were targeted at larger cu. in. engines (509-632 c.i.d.) looking for maximum horsepower and rpm capabilities with a primary operating range of 3,500-8,000 rpm (this range is an average and will vary with engine displacement and component selection). These aluminum heads also provide impressive torque figures at higher rpm levels. Blown, turbo, and nitrous engines will especially like the larger, higher flowing intake ports. AFR 357cc Magnum BBC cylinder heads will work best with camshafts exceeding 0.750 in. gross valve lift to make better use of the substantial airflow found in the higher lift range. The AFR 357cc 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. The AFR's fully CNC-ported 357 heads come with a 121cc chamber and are available with an optional 114cc combustion chamber as well. Order the cylinder head model suited to your needs.

Not Yet Reviewed

$4,592.00

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$5,185.00

$4,362.40

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$4,925.75

Edelbrock Big Victor Spread-Port Bare CNC Cylinder Heads

Intended for high output, large cubic inch big block Chevy racing engines with 4.84 in. bore spacing, these Edelbrock Big Victor Spread-Port CNC heads are an improvement over existing designs. The casting is made from A-356 aluminum and is Hot Isostatic Pressing processed (HIP) for superior strength and durability, dimensional stability, and exceptional finish quality. These heads feature CNC-ported spread intake ports and a raised exhaust runner design for improved flow efficiency. The chambers are also fully CNC-ported and Edelbrock includes extra material in the deck to allow for fine tuning of the combustion chamber design if desired.

Not Yet Reviewed

$4,929.50

On Sale

AFR 265cc Oval Port Magnum BBC Cylinder Heads

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

4.11 out of 5 stars ( 9 )

$2,484.00

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$3,214.00

$2,359.80

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$3,053.30

On Sale

AFR 300cc Magnum BBC Cylinder Heads

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.

5.0 out of 5 stars ( 3 )

$3,691.00

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$4,337.00

$3,506.45

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$4,120.15

On Sale

AFR 290cc Oval Port Magnum BBC Cylinder Heads

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. They produce tremendous airspeed and are ideal for 396-509 cu. in. engines. These heads feature AFR's trademark 3/4 in. deck, reinforced rocker stud bosses, and thick, rugged castings. They're available bare or fully assembled with one-piece stainless steel valves, double valve springs, steel locks, retainers, and guideplates. The cylinder heads also have high-flowing 3/8 in. raised exhaust ports for better performance. Choose the model best suited for your vehicle application.

4.75 out of 5 stars ( 4 )

$3,508.00

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$4,139.00

$3,332.60

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$3,932.05

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