Cylinder Heads

Ferrea 6000 Series 8mm x 2.080 Super Flo LS Intake Valves Competition swirl-polished valves with higher fatigue resistance and tensile strengths than the competitors’ best offering. These valves are made to withstand high spring pressure, roller...

Holley LS Steam Tube Kit 26-550 Steam Vent Adapters & kits. They are designed to eliminate trapped air and steam from your engine to prevent hot spots or overheating. The complete kits are available to plumb your LS engine and include the appropriate...

LSXceleration XF1 Cathedral Port 255cc/64cc 11° CNC Cylinder Heads - Bare 15-161000-2 6-bolt Cathedral Port CNC Cylinder Head Pair w/ Billet Rocker Stands.  Features: 6 bolt casting (4 bolt available) Minimum Bore Size 3.780" 11° Valve...

Manley LS1/LS2/LS6 Race Series Stainless 8mm x 1.600 Exhaust Valves 11365-8 Manley is known as one of the leading manufacturers of Racing Valves in the world. Manley Racer Series Stainless Steel Valves were engineered for Street Performance and Racing...

Manley LS1/LS2/LS6 Race Series Stainless 8mm x 2.020 Intake Valves 11362-8 Manley is known as one of the leading manufacturers of Racing Valves in the world. Manley Racer Series Stainless Steel Valves were engineered for Street Performance and Racing...

Manley Severe Duty Stainless 8mm x 1.600 LS Exhaust Valves 12355-8 Manley is known as one of the leading manufacturers of Racing Valves in the world. Manley Racer Series Stainless Steel Valves were engineered for Street Performance and Racing...

SCE Gen V LT 4.150 Bore Vulcan Cut-Ring Head Gasket CR271555 Gen V LT1 LT2, LT4, L86, L87, L8T 4.150" Gasket Bore x 0.055" Compressed Thickness. Sold individually. A hybrid design forged to harness the best sealing properties of two head gasket types...

ARP 8740 Pro Series RHS Head Stud Kit 234-4339 - 12-Point (RHS Block w/ RHS LS7 Heads) These ARP Pro Series Head Bolts are made of 8740 (190,000 psi tensile strength) material and utilize a 12-point nut. They are cold-forged and heat treated prior...

Cometic LSX 4.185 Bore MLS Head Gasket C5935-075, Right Side LSX 4.185" Bore. 0.075" Compressed Thickness MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel. The embossed outer...

Cometic LSX 4.185 Bore MLS Head Gasket C5936-075, Left Side LSX 4.185" Bore. 0.075" Compressed Thickness MLS Gaskets are comprised of multiple embossed layers of both AMP (Advanced Multi-Polymer Coating) and uncoated stainless steel. The embossed outer...

Ferrea 6000 Series 8mm x 1.570 Super Flo LS Exhaust Valves Competition swirl-polished valves with higher fatigue resistance and tensile strengths than the competitors’ best offering. These valves are made to withstand high spring pressure, roller...

Ferrea Competition Plus Hollow Stem 8mm x 2.055 LS Intake Valves These Hollow Stem Lightweight Valves are manufactured with a unique process that gun drill and micro polish the hollow stem cavity. These valves achieve a weight reduction of approximately...