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Trick Flow engineers used the best features of OEM GM LS3 and LS7 cylinder heads, combined with their own race-winning engineering and technology, to create the GenX® 255—the ultimate ultimate square port LS cylinder head for 4.000" and larger bore engines. The heads feature fully CNC Competition Ported runners with a premium high resolution surface finish for maximum airflow and performance potential. Stock LS3 ports accommodate LS3-style intake manifolds and LS9/LSA blower assemblies. The valve angles have been changed from 15° to 12° to increase piston-to-valve clearance and allow the use of larger camshafts. The coolant holes through the head deck were redesigned to work with all LS head gasket and engine block combinations. GenX 255 heads are available with standard or 6-bolt per cylinder mounting patterns. Trick Flow GenX 255 cylinder heads are emissions-legal under CARB E.O. #D-747 for 2007-present GM vehicles with 6.2L engines. They are available fully assembled or as bare castings. Sold individually.
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$1,549.99
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$1,599.99
Trick Flow® GenX® 260 square port cylinder heads for GM LS7 are the best choice for your LS-based performance build for several reasons. The A356-T6 aluminum castings feature more material for increased rigidity and strength. Factory LS7 port locations, valve angles, and valve locations have been maintained to work with existing intakes and pistons. One-piece modular, 2024-T4 billet aluminum rocker arm mounts enhance valvetrain stability and are removable for shaft rocker setups. High flow, high velocity CNC Competition Ported runners with the premium high resolution surface finish provide all-out air flow and performance throughout the entire powerband. Plus there's clearance for 3/8" pushrods and through-deck coolant holes that fit all GM LS gasket and block combinations, Trick-Alloy™ powdered metal valve guides, and solid stem valves. Fully assembled heads also include Trick Flow® by PAC Racing Pacaloy valve springs, steel or titanium spring retainers, die forged steel valve locks, and stainless steel valves. Trick Flow® GenX® 260 cylinder heads are emissions-legal under CARB E.O. D-747 for 2006 to present GM vehicles with 7.0L engines. They are available fully assembled or as bare castings and sold individually.
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$1,549.99
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$1,599.99
Building on the features that make the GenX® 255 for GM LS3 great—like 12° valve angles and relocated valves for reduced valve shrouding and improved piston-to-valve clearance—Trick Flow's GenX® 280 HIP cylinder heads withstand the abuse of high horsepower, power-adder performance demanded by today's racers and engine builders. The GenX® 280 heads list of features is long, and it starts with the HIP'd (Hot Isostatic Pressed) castings. This process significantly increases the casting's density for improved tensile and fatigue strength. It continues with industry leading airflow through CNC Competition Ported 280cc intake ports and Trick-Alloy™ powdered metal valve guides for added longevity. Manley Severe Duty intake valves and Extreme Duty Inconel exhaust valves are designed to withstand the abuse of extreme temperatures and stresses of big power adder applications. Trick Flow® by PAC Racing dual valve springs, titanium retainers, .750-inch thick deck, and 6-bolt-per-cylinder mounting pattern round out the features. Trick Flow® GenX® 280 HIP cylinder heads for GM LS3 work with all LS3 intake manifolds and LS9/LSA blower assemblies and fit all LS head gasket and engine block combinations. These cylinder heads are available fully assembled or as bare castings. Sold individually. Key features: * 280cc intake ports and 67cc combustion chambers * HIP'd casting * Accepts 3/8 in. pushrods * Powdered metal valve guides * 2.165 in. NK-844 severe duty stainless steel intake valves * 1.600 in. XH-432 extreme duty Inconel exhaust valves * .750 in. thick deck * 6-bolt configuration * Assembled heads include a Trick Flow® LS3 rocker stand
Not Yet Reviewed
$1,949.99
Edelbrock Performer RPM Chrysler Gen III HEMI cylinder heads are bolt-on performance upgrades for Gen III HEMI engines. They are designed to fit with the stock intake manifold, exhaust manifold, valve cover, rockers, spark plugs, and accessories, as well as Hellcat components. The cylinder heads have been machined to be used on either the driver or passenger side of the block. They are cast from A356 aluminum and are heat-treated to T6 specifications. Edelbrock Performer RPM Chrysler Gen III HEMI cylinder heads feature fully CNC-machined combustion chambers, along with CNC-profiled bowls and port entries/exits for improved airflow. They also feature more material in the deck and reinforced combustion chambers for increased cylinder pressures. The rocker bosses have been reinforced for improved stability and strength, and extra material has been added around the intake and exhaust ports to allow for porting in racing applications. Both the intake and exhaust port flanges have remained in the factory location for use with OEM components. The intake and exhaust valves have been tipped away from the bore wall to unshroud the larger valves, while maintaining factory geometry. The seat diameters have also been increased for improved heat transfer and durability over stock.
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$1,611.50
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$1,639.50
Are you looking for a set of entry-level street performance heads for your modern street rod, muscle car, or truck? Edelbrock E-Street cylinder heads are just the ticket. These heads feature A356 aluminum castings that are heat-treated to T-6 specs for superior casting strength and quality. Their modern combustion chamber design helps to improve the combustion process and their larger-than-stock intake and exhaust ports help to move more air through your engine. These features improve an engine's efficiency, resulting in more horsepower and torque and improved mileage potential. All Edelbrock E-Street cylinder heads are assembled with manganese bronze valve guides, powder metal interlocking valve seats, and stainless steel one-piece valves with hardened valve tips. Edelbrock E-Street cylinder heads are ideal for entry level street performance engines.
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$1,549.95
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$1,702.95
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!
( 12 )
$1,539.99
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$1,999.99
S&S Cycle Super Stock cylinder head kits feature stock-appearing cylinder heads with improved performance. These heads work well with engines of stock displacement but are ideal for engines with a little larger stroke or bore. They are compatible with stock rocker boxes, intake manifolds, and exhaust. The S&S high-performance valve springs allow for camshafts with larger lifts. Super Stock aluminum cylinder head kits are available in multiple finishes depending on application and they contain all the parts needed for installation except where noted.
Not Yet Reviewed
$1,549.76
Looking to increase the performance of your Gen III-powered vehicle? AFR 212cc Black Hawk Gen 3 Hemi cylinder heads are to be offered in as-cast and fully CNC ported versions, either assembled or as no-parts (bare) heads to provide the power and performance Mopar enthusiasts crave. Manufactured using A356 aluminum and permanent-mold technology, AFR castings are second to none. Assembled pairs will come with high-quality components, such as PAC Racing springs, Titanium (CNC versions) or stainless steel retainers, AFR valves, and Viton® valve seals.
Not Yet Reviewed
$2,105.00
Looking to increase the performance of your Gen III-powered vehicle? AFR 224cc Black Hawk Gen 3 Hemi cylinder heads are to be offered in as-cast and fully CNC ported versions, either assembled or as no-parts (bare) heads to provide the power and performance Mopar enthusiasts crave. Manufactured using A356 aluminum and permanent-mold technology, AFR castings are second to none. Assembled pairs will come with high-quality components, such as PAC Racing springs, Titanium (CNC versions) or stainless steel retainers, AFR valves, and Viton® valve seals.
Not Yet Reviewed
$2,105.00
Great cylinder head airflow is yours with Chevrolet Performance LSX cylinder heads. With power-building attributes, these aluminum heads are manufactured from 319-T5 aluminum alloy and assembled with premium lightweight hollow-stem valves, sodium-filled exhaust valves and--on some models--titanium intake valves. Ensure maximum airflow and exceptional performance with Chevrolet Performance LSX cylinder heads.
Not Yet Reviewed
$1,824.30
Edelbrock Victor LS-R Pro-Port cylinder heads are hip to racing! These bare heads are designed to maximize the potential of your race-oriented LSX block. They are processed with a technique called Hot Isostatic Pressing (HIP) that results in an incredibly strong, super-dense casting with three times the fatigue life! These un-ported versions of the Edelbrock Victor series heads are cast in the USA with extra-thick walls to accommodate professional custom CNC porting. A true canted valve design offers the utmost in port flow and combustion efficiency with a 2-valve design. And, these Victor LS-R bare heads use the GM SB2 valve cover footprint required by the added width of the canted valve layout. The stock exhaust bolt pattern is retained and magnesium-bronze valve guides are included, but not installed. Get hip to Edelbrock Pro-Port and their Victor LS-R bare cylinder heads.
Not Yet Reviewed
$1,757.50
Edelbrock Victor CNC 11-degree 6-bolt LS3 cylinder heads are specifically designed for high-horsepower, naturally aspirated, and boosted applications. Utilizing the popular LS 6-bolt design, they are compatible with the GM LSX block and all aftermarket iron or aluminum 6-bolt per cylinder LS race blocks. The design offers increased clamping capacity over the standard factory 4-bolt configuration and greatly improves head gasket sealing, making them ideal for high-compression naturally aspirated engines and high-boost applications. Edelbrock Victor CNC heads are manufactured with premium materials and machined to the industry's tightest tolerances. They have an 11-degree valve angle, copper infiltrated powder metal valve seats, and fully CNC-machined ports for maximum airflow. The machined runners and chambers, along with the valve angle increase overall flow capability, while the revised water jacket design enhances thermal conductivity and tunability. Premium manganese bronze valve guides withstand long wear with emphasis placed on holding precision tolerances on valve seat concentricity, allowing the valves to seal securely, eliminating leak down and increasing cylinder pressure during engine operation. Finally, the .700 in. thick deck and reinforced rocker rails make these cylinder heads ideal for high-horsepower applications.
Not Yet Reviewed
$1,506.95
Chevrolet Performance LSX-SC cylinder heads are developed for big-boost levels and high-horsepower engines. Undergoing a Hot Isostatic Pressing (HIP), this process is a way of casting that removes the air pockets while improving the mechanical properties of the components. LSX-SC cylinder heads are the same ones you'll see on Chevrolet's COPO 350 engine. They're available in three different configurations: as-cast; bare with CNC-machined features; or fully assembled CNC-machined cylinder heads complete with valves and springs. Features and benefits include: * Signature LSX 6-bolt head-clamping pattern * Increased deck thickness from 0.650 in. to 0.750 in. * Exhaust face thickness increased from 0.177 in. to 0.300 in. * Dense T356 aluminum material
Not Yet Reviewed
$2,203.43
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