Cylinder Heads, Head Bolts & More

Chevrolet Performance Fast Burn Cylinder Heads

These CNC-machined aluminum Fast Burn cylinder heads from Chevrolet Performance are designed for 1958-2000 283-400 c.i.d. Chevy V8s. They quickly and completely burn the air/fuel mixture, ensuring higher cylinder pressure and more power. No additional porting is required--Chevrolet Performance Parts' cast-ported technology gives these heads maximum performance right out of the box. They're drilled and tapped for Vortec and raised port manifolds, they accept flange-mount or centerbolt-style valve covers, and will support in excess of 500 HP.

Not Yet Reviewed

$1,514.83

Gator Fasteners Heavy-Duty Head Stud Kits

Whether you're building a tow rig, race truck, or just want to keep your daily driver on the road for the long haul, you need to upgrade your head bolts with Gator Fasteners heavy-duty head stud kits. Gator head studs have a much higher strength and will not stretch like the factory bolts, helping to keep your truck from popping head gaskets. Designed for stock to moderately built engines. Gator studs are manufactured with 8740 material with an added proprietary element and black oxide finished. They are rated at 220,000 psi tensile strength, providing the clamping force required to keep cylinder heads from lifting due to higher combustion pressures. Choose the head stud kit designed for your truck.

5.0 out of 5 stars ( 2 )

$39.99

—

$599.99

Fleece Performance Freedom Series DuraMax Cylinder Heads

Fleece Performance introduces the Freedom Series cylinder heads for 6.6L Duramax engines, found in many Chevy and GMC trucks from 2001 and up. Each cylinder head is manufactured in-house at the state-of-the-art Freedom Racing Engine Shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with new valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on the intake and exhaust ports. Available with new or remanufactured casting.

Not Yet Reviewed

$1,099.00

Mahle Original Head Bolt Kits

Mahle Original fasteners deliver the clamping force necessary to seal the combustion chambers, as well as the oil and coolant passages--even at extreme temperatures and pressures. On your next cylinder head reassembly, use bolts designed to exact specifications for the best sealing solution--Mahle Original head bolt kits.

4.17 out of 5 stars ( 36 )

$10.99

—

$181.99

PRW Cylinder Head Stud Kits

PRW cylinder head stud kits offer heavy-duty fasteners, along with 12-point nuts and washers for Ford Powerstroke engines. These replacement studs are machined from 4135 chromoly steel and finished with a black oxide. They provide superior clamping power, compared to the stock bolts—which will solve the problem of head gasket failure caused by increased cylinder pressure.

5.0 out of 5 stars ( 1 )

$109.95

—

$782.96

ATK High Performance LS3/L92 255cc Aluminum Cylinder Heads

ATK high performance LS3/L92 25cc as cast aluminum cylinder heads are the perfect budget option for your next LS build. These fully assembled heads are capable of making over 600 hp naturally aspirated out of the box and will come loaded with upgraded components. The springs are set up to be used on up to .650 in. lift camshafts. No reason to swap parts on your new heads when running an upgraded cam! -- Features and benefits: * Bronze valve guides * Dual valve springs for .650 in. max lift * CNC-finished faces and bolt holes for extreme accuracy * 355-T6 high density aluminum * Machined for screw in studs and guide plates * All factory components will fit without modification -- Cylinder Head Specifications INTAKE: * Intake Runner Volume (cc): 252 * Intake Port Location: Standard * Intake Valves Included: Yes * Intake Valve Diameter (in): 2.160 in. EXHAUST: * Runner Volume (cc): 78.8 * Exhaust Valve Diameter (in): 1.600 in. * Exhaust Valves Included: Yes * Exhaust Runner: No * Port Shape: Round * Exhaust Port Location: Standard COMBUSTION CHAMBER: * Combustion Chamber Volume (cc): 69.4 * CNC-Machined Combustion Chamber: No VALVE SPECS: * Intake Valve Angle: 12 degrees (3 degrees rolled) * Exhaust Valve Angle: 12 degrees (3 degrees rolled) * Valve Guides Included: Yes * Valve Guide Material: Manganese Bronze * Valve Seats Machined: Yes * Valve Seat Machine Style: 5-Angle * Valve Seat Material: Chrome Nickle * Valve Stem Seals Included: Yes * Valve Stem Seal Style: Viton® Fluoroelastomer SPRINGS: * Valve Springs Included: Yes * Maximum Valve Lift (in): .650 in. * Spring Pressure Open: 370 @ 1.150 * Spring Pressure Closed: 142 @ 1.800 * Outside Diameter of Outer Spring (in): 1.29 in. * Damper Spring Included: Yes * Number of Springs per Valve: Dual * Retainers Included: Yes * Retainer Material: Chromoly Steel * Locks Included: Yes * Lock Style: 7 Degree ROCKER ARMS: * Rocker Arm Studs Included: No * Rocker Arms Included: N/A * Rocker Arm Nut Thread Size (in): 8 x 1.25 * Rocker Arm Nuts Included: No MISC: * Head Style: Assembled * Cylinder Head Material: Aluminum * Cylinder Head Finish: Natural * Spark Plug Style: Standard * Cover Mounting Style: Standard * Steam Holes Drilled: No * Oiling Style: Through Pushrod * Machined for O-Ring: No * Heat Crossover: No * 10mm Accessory Bolt Holes Machined On Ends of Heads

Not Yet Reviewed

$748.99

Ford Performance Parts Z2 Velocity Vane Cylinder Heads

Ford Performance Parts Z2 Velocity Vane cylinder heads improve power throughout the rpm range. Developed with advanced computer-aided engineering simulation tools, Ford Z2 aluminum heads feature their unique Velocity Vane intake port design that delivers outstanding street/strip power. These high performance cylinder heads are direct bolt-ons for Ford 289/302/351W engines, and they retain OEM exhaust, intake, and accessory mounting locations. Ford Z2 Velocity Vane cylinder head specs: * Cast from prime 356 T6 aluminum * Heads retain Ford OEM intake and exhaust port location and flange * Velocity Vane in port floor directs airflow around the valve stem, leading to more horsepower and torque throughout the full power range * 20 degree inline valve angle * Premium stainless steel valves: 2.05 in. intake, 1.60 in. exhaust valves * PAC 1219X conical-style valve springs with machined retainers and 10 degree machined valve locks--most hydraulic cams can be used with these springs * Valve spring closed pressure: 145 lbs. at 1.800 in. * Valve spring open pressure: 358 lbs. at 1.175 in. * Coil bind at 1.100 in., 0.650 in. max lift * Includes laser-cut guide plates for use with 5/16 in. pushrods and 7/16 in. rocker studs * Steel alloy intake and exhaust valve seats * Manganese-bronze valve guides * 63cc combustion chamber

5.0 out of 5 stars ( 2 )

$1,106.99

Edelbrock Performer RPM Chrysler Gen III HEMI Cylinder Heads

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.

5.0 out of 5 stars ( 3 )

$1,611.50

—

$1,639.50

ATK High Performance 250cc LS1/LS6 Aluminum Cylinder Heads

ATK High Performance 250cc LS1/LS6 aluminum assembled engine cylinder heads are complete new builds. They include valves, valve springs, valve spring retainers, valve stem seals, and soft plugs. All threads are checked and repaired, if necessary; and all passages and part interfaces are pressure checked. Product specifications: * Material: A356 aluminum * Bolt count: 6-bolt head * Intake port volume: 250cc * Intake port dimension: 3.227 in. H x 1.119 in. W * Intake port location: Stock cathedral port * Intake valve size: 2.080 in. * Intake valve material: Stainless steel * Exhaust port volume: 105cc * Exhaust port dimension: 1.628 in. H x 1.722 in. W * Exhaust port location: .086 in. raised * Exhaust valve size: 1.60 in. * Exhaust valve material: Stainless steel * Combustion chamber size: 61cc * Valve cover bolt pattern: Perimeter bolt * Valve angle: 11 degree * Valve spring pocket diameter: 1.610 in. O.D. * Valve spring pac: 1905 dual spring (hydraulic roller) * Valve spring setup height: 1.800 in. * Valve spring closed pressure: 160 lbs. (with retainer) * Valve spring open pressure: 1.200 in., .600 in. lift, 425 lbs. / 1.150 in., .650 in., lift 445 lbs. (with retainer) * Valve spring max lift: .650 in. * Valve guide material: Manganese bronze * Valve seal material: Viton© * Valve seat material: Powder metal * Retainer material: Titanium * Deck thickness: .750 in. * Minimum bore diameter: 3.900 in. (will not fit stock bore 4.8L/5.3L) * Flat mill: .006 in. per cc * Spark plug dimensions: 14mm x .708 in. with tapered seat * Torque specifications per application based on factory or aftermarket bolts/studs

Not Yet Reviewed

$998.99

Edelbrock Victor 11-Degree CNC LS3 6-Bolt Cylinder Heads

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

Ford Performance Parts 289/302/351W X2 Street Cruiser Aluminum Assembled Cylinder Heads

Ford Performance Parts 289/302/351W X2 Street Cruiser aluminum assembled cylinder heads provide an easy way to bolt-on significant horsepower to your Street Cruiser package! Manufactured using all-new Ford tooling, and constructed using 356-T6 aluminum, each cylinder head is cast, precision machined, and assembled with premium components. The X2 heads also feature high-temperature exhaust valve seats, bronze guides, common rocker bosses for strength, and increased section thickness in critical areas for porting. Sold individually, two of these X2 Street Cruiser cylinder heads are required for you to complete your engine's horsepower upgrade. Additional features include: * Intake flows approximately 230 cfm at .600 in. lift (at 28 in. of H20) * Exhaust flows approximately 160 cfm at .600 in. lift (at 28 in. of H20) * Machined for 1.94 in. intake and 1.54 in. exhaust valve diameters * Use either GT-40 or aftermarket performance intake manifolds * Must check your intake manifold for port match; not all intakes are compatible due to the tall high-flow ports * Machined for AGSP-32C gasket seat spark plugs * Each head weighs approximately 25 lbs. less than each production cast iron head * Each head is leak-tested prior to assembly * Compatible with many aftermarket intake manifolds, headers, and valve train components * Includes Ford Performance intake valves, exhaust valves, and PAC 1219X Ovate Beehive valve springs * Features 10 degree locks, steel valve spring retainers, and stock valve seals * Features wider valve cover gasket sealing rail to prevent leaks * Compatible with all Ford Performance roller camshafts and aftermarket hydraulic roller camshafts up to .600 in. lift * Compatible with bolt-down rockers 1.6-1.7 ratio; always check rocker arm clearance to valve springs with production rocker arms * Depending on lifter preload, Ford Performance rocker shim kits * Use Fel-Pro exhaust gasket (part number 1415) * Designed to be used on Ford Performance BOSS blocks; M-6010-BOSS302, M-6010-B302BB, M-6010-BOSS35195, M-6010-BOSS35192 and M-6010-BOSS351BB * Use Ford Performance M-6065-BOSS headbolt set or Ford Performance M-6014-BOSS head stud kit * Use Ford Performance head gasket M-6051-CP331 or M-6051-S331—or, for "Big Bore" application, use M-6051-R351 * Must use Ford Performance M-6065-D289 headbolt kit to install heads on 289/302 production blocks * Does not fit 1986 5.0L with flat-top pistons unless pistons are notched for valve relief

4.33 out of 5 stars ( 6 )

$1,138.99

Ford Performance Parts Super Cobra Jet Cylinder Heads

Ford Performance Parts teamed up with Jon Kaase to redesign their 429 Cobra Jet cylinder heads, and the results are these Super Cobra Jet heads. They feature revised valve angles and locations to reduce cylinder wall shrouding and improve flow, along with redesigned combustion chambers to accommodate the more centrally located valves. These heads use the same valves, valve springs, retainers, and 7/16 in. stud-mounted roller rockers as the current Ford Performance Parts 429 Cobra Jet heads, and the standard Cobra Jet intake and exhaust manifolds bolt right on. This new design offers a 25-50 HP increase over current Cobra Jet heads, depending upon displacement and camshaft.

4.62 out of 5 stars ( 13 )

$1,285.99

—

$1,772.99

Chevrolet Performance Vortec Cylinder Heads

Chevrolet Performance cast iron Vortec cylinder heads will fit 1958 and later small block Chevy engines, and offer a 20 to 40 hp increase over earlier cast iron small block heads. Features include fast burn combustion chambers, and a high-velocity port design. They require the use of a Vortec-style intake and self-aligning rocker arms, and come complete with valves, springs, and retainers.

3.0 out of 5 stars ( 6 )

$795.65

Summit Racing™ Precision Cast Cylinder Head

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!

4.12 out of 5 stars ( 17 )

$624.99

—

$629.99

Cylinder Heads, Valve Seats, Head Bolts, Top End Kits & More