Availability
S&S Cycle Performance cylinder heads are replacements for Big Twin engines. Designed to be compatible with a stock-style flat topped piston, their larger than stock intake and exhaust valves provide plenty of air while maintaining port velocity for good low and midrange response, while the S&S high-lift valve springs allow the installation of cams with up to .585 in. lift. S&S Cycle Performance cylinder heads are compatible with stock intake manifolds, exhaust systems, and temperature sensors for EFI-equipped models. Select low or standard compression heads with a natural aluminum or wrinkle black powdercoat finish for your Big Twin engine. * Low compression sets have a slightly larger 82cc combustion chamber, making them ideal for larger displacement applications, producing a manageable compression ratio. These heads are original equipment on S&S V96 and V80 engines. * Standard compression sets have a 76cc combustion chamber that gives a slight increase in compression for great results with most performance cams.
Not Yet Reviewed
$1,285.16
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$1,959.95
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
Don't sacrifice quality for a low price--get both with our Summit Racing™ 64cc aluminum cylinder heads for small Chevy. The lightweight heads are cast from A-356 aluminum alloy and have 200cc intake ports, 64cc combustion chambers, phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. The fully assembled heads have 2.02 in. intake and 1.60 in. stainless steel exhaust valves, valve springs, 7 degree valve locks, 3/8 in. rocker arm studs, and 5/16 in. guideplates.
( 29 )
$1,329.99
No longer will fans of the small block Chevy have to choose between vintage looks or modern cylinder head power—Trick Flow® DHC™ 175 cylinder heads give you both! Made from premium grade, lightweight A356-T61 aluminum, DHC™ 175 heads feature the exterior styling and straight spark plug holes that deliver the nostalgic appearance of the original factory performance 186, 291,461,462 "double hump" or "camel back" castings that customers want. To keep with the vintage design, the heads are available with 69' later or without 68' earlier accessory bolt holes cast into them. 60cc CNC-profiled combustion chambers combined with a state of the art valve job and CNC blended bowl work under the valves and small cross-section intake runners promote low-rpm torque increases and boost high-rpm horsepower. The runners are finished with Trick Flow's® superior Fast As Cast® process that precisely duplicates the runner profile and performance levels of fully CNC-ported heads without the added machining cost. Ductile iron valve seats for use with unleaded fuel, stainless steel valves, bronze alloy valve guides, multi-angle valve seat machining, and decks and walls cast extra thick for increased casting strength and to provide extra room for porting round out the features. Trick Flow® DHC™ 175 cylinder heads are available fully assembled or as bare castings. Sold individually.
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$649.99
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$874.99
Recommended for aggressive street/strip builds with displacements up to 427 c.i. operating at or below 7200 rpm. Capable of flowing 328 cfm at 0.650 in. lift with a 4.000 in. bore size. AFR street legal 230cc LS1 Mongoose strip cylinder heads are specifically designed for Gen III Chevy Corvettes, Camaros, and trucks. LSX cylinder heads offer unmatched flow performance and feature 2.080 in. intake and 1.600 in. exhaust valves with their ductile iron interlocking valve seats. Mongoose strip heads are available with 62cc, 65cc, and 72cc combustion chambers. Structural features like AFR's trademark 3/4 in. thick head deck, a must for blown and nitrous applications, reinforced rocker stud bosses, and thick wall runners provide unparalleled durability. An exclusive new modern combination chamber design with a double quench pad area helps the LSX generate huge low and mid-lift airflow numbers.
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$2,910.60
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$3,332.70
Build the ultimate classic-looking hi-po Chevy small block with Trick Flow® DHC™ 200 cylinder heads. Patterned after Trick Flow's popular DHC™ 175 as-cast heads, DHC™ 200 heads get the full CNC-ported treatment to substantially ramp up power production. New 64cc CNC-profiled combustion chambers with 2.055 in. intake valves and CNC Street Ported runners promote big increases in high-RPM horsepower and torque. Bronze alloy valve guides, ductile iron valve seats, and stainless steel valves ensure excellent durability, while proprietary valve profiles and multi-angle valve seat machining maximize flow at low lift. Extra thick decks and walls increase casting strength for peace of mind in demanding conditions. Chromoly steel retainers, 7-degree machined steel valve locks, factory intake and exhaust port locations, and your choice of Trick Flow by PAC Racing valve springs are also standard. As with all Trick Flow® cylinder heads, DHC™ 200 heads are cast from A356-T61 aluminum to keep weight low. To preserve the vintage theme, exterior touches like straight spark plug holes, castings with or without accessory bolt holes, and other OE double hump head styling cues deliver the traditional look you're going for. Sold individually.
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$949.99
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$1,274.99
Trick Flow® Super 23® 175 cylinder heads deliver performance that far exceeds the power capabilities of factory heads on 283-350 c.i.d. small block Chevy engines. It starts with the small cross section Fast as Cast® runners. They promote excellent port velocity for increased low end torque and have a profile that provides excellent flow for making high RPM horsepower on small bore engines. Modern CNC-profiled chambers promote combustion efficiency to maximize power with less ignition timing, reducing the potential for detonation. The result is more power and torque, better drivability, and greater throttle response from your street performance engine. The features don't end there. Trick Flow® Super 23® 175 cylinder heads have improved A356-T61 castings with 3/4" thick decks for added strength and durability. They also have a competition multi-angle valve job, angled spark plugs, and raised valve cover rails for improved rocker clearance and less potential for oil leaks. Heads are available assembled with premium components including stainless steel valves, bronze guides, 7° machined locks, chromoly retainers, and your choice of PAC Racing valve springs for flat tappet or hydraulic roller cams. Trick Flow® Super 23® 175 heads accept most original accessories. They are emissions-legal under CARB E.O. #D-747-1 for 1995 and earlier GM vehicles with Chevy 262–350 engines. Cylinder heads are available fully assembled or as bare castings. Sold individually.
( 1 )
$899.99
Edelbrock Ford flathead cylinder heads feature your choice of the original Edelbrock script logo or the block-style logo. Designed for both Fords and Mercurys, these heads are rugged, ribbed internally and externally, with a large water capacity, and excellent breathing characteristics. Available with 74 cc or 65 cc chamber volumes, the 65cc heads support an 8.0:1 compression ratio on blocks with a 3/16 in. base relief (stock bore and stroke); compression ratio increase is approximately 3/10 of a percent with each 1/8 in. of stroke increase. The high lift/large chamber versions feature a new "raised roof" combustion chamber design and are CNC-machined for high lift cams. Perfect for reducing compression in supercharger applications or for low octane fuel, they offer increased valve clearance and improved flow capacity. Match these heads with Edelbrock's popular Ford flathead intake manifolds. Edelbrock Ford flathead cylinder heads are cast at the Edelbrock foundry in the USA of T-6 tempered A356 aluminum. They're available for a wide range of vehicles from the 1930s, '40s, and '50s.
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$987.50
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$1,046.95
Edelbrock Performer RPM Pontiac CNC cylinder heads have the same specifications as our popular Performer RPM cylinder heads for 1962-79 455 c.i.d. Pontiac engines, but feature a CNC-machined combustion chamber. The CNC-machined chambers result in a consistent and precise chamber for improved flow performance. Performer RPM CNC cylinder heads are available in two chamber sizes. The 87cc chamber version is ideal for 9.5:1 engines and will deliver excellent street performance on low-octane fuel. Performer RPM CNC cylinder heads with 72cc chambers are best for higher compression engines. Both are patterned after the same port flange configuration as the 1969-70 Ram-Air IV Pontiac cylinder heads.
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$1,521.50
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$1,560.50
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.
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$1,123.15
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$2,624.42
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.
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$3,158.40
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$4,050.90
These Edelbrock Victor big block Chrysler cylinder heads are designed for the serious race enthusiast. They are made of aluminum and feature raised intake and exhaust ports for improved flow characteristics. The heads will fit both tall and low-deck engine blocks using Victor intake manifolds. The raised valve cover rails get rid of any chance of leaking gaskets. Available with or without valves, these heads have reamed and semi-finished valve stem guides and no valve job. They require final guide sizing, valve seat finishing before installation, and special offset rocker arms for the intake side.
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$1,041.50
Trick Flow® Super 23® 195 cylinder heads give you performance that closely matches CNC-ported cylinder heads—for about the same price as ordinary cast heads! Ideal for 302 to 406 c.i.d. engines, the Super 23® 195 heads feature high-velocity, small cross-section intake runners to promote low-rpm torque and high-rpm horsepower. Fast As Cast® runners deliver near-CNC-ported flow and performance. Angled spark plugs, raised valve cover rails, and extra-thick decks and walls for porting round-out the features. Trick Flow Super 23 195 heads are a direct fit, high performance replacement for factory heads and accept most original accessories. They are emissions-legal under CARB E.O. #D-747-1 for 1995 and earlier GM vehicles with Chevy 262-350 engines. The heads are available fully assembled or as bare castings. Sold individually.
Not Yet Reviewed
$874.99
These Dart Iron Eagle S/S cylinder heads are the perfect way to squeeze a little bit more performance out of your street engine. They are designed to offer many of the features of other high-end cylinder heads at a more affordable price. Dart produces these heads from premium, high-density cast iron with extra-thick decks for durability and power potential. These heads feature precision-cast 165cc intake ports and heart-shaped combustion chambers that are designed to produce great airflow without expensive or time-consuming porting. The hardened exhaust valve seats are fully compatible with unleaded fuels, and the multi-angle intake and radiused exhaust seats further improve flow, maximizing power. Dart utilizes screw-in rocker studs that won't pull out, even under heavy use, and the machined valve cover rails eliminate possible oil leaks. All you have to do is choose which combination of combustion chamber volume and valve size will best complement your engine, and whether you want fully assembled, bolt-on heads or bare, ready-to-build castings. Dart Iron Eagle S/S cylinder heads produce great throttle response and gains in low-to-midrange torque, just where you need it, for your street hot rod, musclecar, or pickup.
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$590.91
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$976.58
Don't let their size fool you—AFR Magnum 305cc "as-cast" heads with a CNC bowl blend will provide you with flow numbers that most medium-sized heads, and some larger, can only dream about. This line was designed to optimize low and mid-lift airflow, while still generating impressive peak figures. Their application should be focused on smaller cu. in. Chevy big blocks (396-502) with a primary operating range of 2,500-6,800 rpm (this range is an average and will vary with engine displacement, as well as component selection). AFR 305cc Magnum BBC heads should also be given strong consideration in larger street-driven or marine applications up to 555 c.i.d., where low-rpm power and drivability are factors. These cylinder heads would be a great choice if you're looking for big torque and strong low-rpm performance and still have good rpm capabilities. The heads come standard with AFR's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.250 in. intake valves and 1.880 in. exhaust valves. Standard combustion chamber volume is 119cc. These heads are available with an optional 114cc combustion chamber as well.
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$3,158.40
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$4,050.90
If you're looking for serious street/strip performance from your one-of-a-kind custom vehicle, then these Trick Flow® PowerOval® 280 Fast As Cast® top-end engine kits for big block Chevrolet engines are just what the doctor ordered. Featuring Trick Flow® PowerOval® 280 heads with 113cc combustion chambers, these top-end engine kits were designed to give your engine the best possible components for excellent low and midrange torque and horsepower. For serious pavement-pounding power, choose these Trick Flow® PowerOval® 280 Fast As Cast® top-end engine kits for big block Chevrolet. Top end kits include: * 2 Trick Flow® PowerOval® 280 cylinder heads * Trick Flow® Track Max® hydraulic roller camshaft with 0.600 in. of intake and exhaust valve lift * Hydraulic roller lifters * Chromoly pushrods * Roller rocker arms with a 1.7 ratio * Billet steel timing set * Cylinder head bolts * Gasket set
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$5,063.90
AFR 205cc LS1 Mongoose cylinder heads offer 301 cfm at .600 in. lift, an incredible 70 cfm increase over the stock casting, creating incredible port velocity and performance. These cylinder heads have 100 percent CNC-ported chambers, A356 aluminum castings, and high-quality components. Other structural features include Air Flow Research's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, along with thick wall runners that provide unparalleled durability. An exclusive combustion chamber design with double quench pad area helps the LS engines generate huge low and mid-lift airflow numbers. Put the ferocity of a mongoose under the hood of your ride with these 205cc LS1 Mongoose cylinder heads from AFR.
Not Yet Reviewed
$3,057.60
Dura-Bond 70000 Series valve seat inserts feature sintered, high-speed (tungsten carbide) tool steel construction. Special additives blended into the matrix impart high-temperature lubrication properties which makes the material impervious to extreme heat and machining, enabling it to be used in "dry" fuel applications such as propane (LPG) and natural gas. Dura-Bond 70000 Series valve seat inserts are more than adequate to withstand the demands of modern engines that put a higher level of thermal and mechanical stress on valve seat inserts. The patented materials and processes offer excellent machinability, along with low wear and high heat resistance. For the heavy- or extreme-duty use Dura-Bond recommends their 70000 Series valve inserts and are used in engines using diesel, unleaded gasoline, and propane.
Not Yet Reviewed
$8.99
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$13.99
Dura-Bond 90000 Series valve seat inserts feature sintered, high-speed (tungsten carbide) tool steel construction. Special additives blended into the matrix impart high-temperature lubrication properties which makes the material impervious to extreme heat and machining, enabling it to be used in "dry" fuel applications such as propane (LPG) and natural gas. Dura-Bond 90000 Series valve seat inserts are more than adequate to withstand the demands of modern engines that put a higher level of thermal and mechanical stress on valve seat inserts. The patented materials and processes offer excellent machinability, along with low wear and high heat resistance. For the heavy- or extreme-duty use Dura-Bond recommends their 90000 Series valve inserts and are used in engines using diesel, unleaded gasoline, and propane.
Not Yet Reviewed
$13.99
Don't let their small size fool you—AFR Magnum fully CNC-ported 315cc aluminum cylinder heads will provide you with flow numbers that most medium sized heads, and some larger, can only dream about. This line was designed to optimize low and mid-lift airflow, while still generating impressive peak figures. Their application should be focused on smaller cu. in. Chevy big blocks (396-502) with a primary operating range of 2,500-6,800 rpm (this range is an average and will vary with engine displacement as well as component selection). AFR 315cc Magnum BBC heads should also be given strong consideration in larger street-driven or marine applications up to 555 c.i.d., where low-rpm power and drivability are factors. Extremely versatile with their incredibly strong low and mid-lift airflow figures, as well as peak numbers approaching the 400 cfm mark, the 315cc heads would be a great choice if you're looking for big torque and strong low-rpm performance and still have good rpm capabilities. They come standard with AFR's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, and premium one-piece stainless steel 2.250 in. intake valves and 1.880 in. exhaust valves. Standard combustion chamber volume with AFR's fully CNC-ported 315cc version comes with a 121cc chamber. These AFR heads are available with an optional 114cc combustion chamber as well.
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$4,344.90
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$4,938.15
AFR 210cc LSX Mongoose street cylinder heads offer 298 cfm at .600 in. lift, an incredible 70 cfm increase over the stock casting, creating incredible port velocity and performance. Recommended for street, strip, and towing engines operating up to 6,300 rpm's from 346 to 383 cu. in., these cylinder heads have 100 percent CNC-ported chambers, A356 aluminum castings, and high-quality components. Other structural features include Air Flow Research's trademark 3/4 in. thick head deck, reinforced rocker stud bosses, along with thick wall runners that provide unparalleled durability. An exclusive combustion chamber design with double quench pad area helps the LS1s generate huge low and mid-lift airflow numbers. Put the ferocity of a mongoose under the hood of your ride with these 210cc LSX Mongoose street cylinder heads from AFR.
Not Yet Reviewed
$2,629.20
Brodix Cylinder Heads 90 degree V6 Series cylinder heads are made of easily repaired, virgin A-356 aluminum material with ductile iron seats and solid phosphorous bronze guides. They have Helicoils installed in the rocker stud bosses to assure stability. These 90 degree V6 cylinder heads are available in two different intake ports. The V6-8 (194cc intake ports) versions are for a low rpm, Pro Street-style engine. The V6-10s (210cc intake ports) are for a larger cubic inch engine, higher rpm range, and racing environments. Brodix V6 Series heads are available bare or assembled. Features and specs: * Ends milled and drilled for accessories * Ductile iron valve seats for use with unleaded fuel * 64 or 67cc combustion chambers * Machined valve cover rail * Standard height intake ports * Out-of-the-box horsepower
( 1 )
$2,114.99
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.
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$4,344.90
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$4,938.15
Chevrolet Performance Bowtie aluminum cylinder heads offer an ideal combination of street drivability and drag-strip performance. These aluminum cylinder heads provide a broad power range with ample low-end torque, along with excellent throttle response, good mid-range torque and enough top-end power to beat your competitors to the finish line. Designed for high performance applications, the Bowtie Street cylinder heads are manufactured to precise machining tolerances, with thick deck surfaces and high-velocity airflow passages. They are available in either rectangular or oval intake port configurations. The rectangular intake ports are larger in volume and have been designed to enhance high-rpm horsepower, which makes them best for vehicles that see frequent drag-strip action. Cylinder heads with oval intake ports are smaller in volume and designed for greater low-rpm torque, therefore they're best for street applications, where lots of bottom end, off-the-line power is desired. Bowtie Street Cylinder Head Technical Notes: * Made from 356-T6 aluminum * Available in rectangular or oval-port designs * Will work on Mark IV and Gen V, VI blocks * 9/16 in. thick decks * As-cast intake and exhaust ports * No heat risers * 1.55 in. valve spring seat diameter * Heli-coiled 7/16 in. screw-in rocker stud holes * Designed for use with 3/8 in. pushrods * Use intake gasket P/N 12366985 and bolt kit P/N 12367959 * Use head gasket P/N 12363414 for bores to 4.370 in. and P/N 12363413 for bores 4.470 in. to 4.540 in. (Mark IV) * Use head gasket P/N 12363412 for bores to 4.370 in. and P/N 12363411 for bores 4.470 in. to 4.540 in. (Gen V, VI) * Use head bolt kit P/N 12367779 Bowtie Oval-Port Aluminum Cylinder Head Assembly: * Completely assembled with 2.250 in./1.880 in. 11/32 in. stem valves * 290cc oval intake ports * 110cc exhaust ports * 110cc combustion chambers Cylinder head is assembled with the following components: * 2.190 in. intake valves * Valve spring retainers * 1.880 in. exhaust valves * Valve locks * Valve springs * Valve seals * Valve spring shims * Rocker arm studs * Pushrod guideplates
Not Yet Reviewed
$1,685.52
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