Cylinder Heads

LSXceleration Gen V L83, L86, LT1, LT4 Head Bolt 22-11976 1 needed per engine. 12mm x 100mm, Internal Hex 13mm.

Chevrolet Performance GM Gen V LT1/L86 6.2L MLS 5-Layer Head Gasket 12688943 4.0944" (104mm) bore x .0523" (1.33mm) thickness x 5-layer MLS.     

LSXceleration Gen V LT4 MLS 7-Layer Head Gasket 14-54622 (Like GM 12654622) 4.0944" (104mm) bore x .053" (1.35mm) thickness x 7-layer MLS This is an OEM LT4 head gasket. Works great for LT1 and L86 engines as well. Made in Germany    

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...

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...

Manley Race Flo Stainless 8mm x 2.165 Hollow Stem LS Intake Valves 12350H-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 Race Flo Stainless 8mm x 2.165 LS Intake Valves 12350-8 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 applications...

Manley Race Master Stainless 8mm x 1.600 LS Exhaust Valves 12353-8 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 2.165 LS Intake Valves 12354-8 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 applications...

LSXceleration GM LS3 MLS 5-Layer Head Gasket 14-10046 4.094" (104mm) bore x .052" (1.33mm) thickness x 5-layer MLS. Same as Chevrolet Performance 12610046. Made in the USA    

LSXceleration MLS Head Gasket Set 14-98544 - 5.3L, 5.7L (Like GM 12498544) 3.937" Bore x 0.052" Compressed Thickness Multi-layer steel (MLS) cylinder head gaskets. Made in the USA    

LSXceleration OE Replacemant Head Bolts for GM LS '04 & Up (Like GM # 17800568) One Kit Services Complete Engine Torque Procedure for GM LS Head Bolts #150568-KIT 1. Tighten 1 thru 10 to 22Ft-Lbs (30NM) in sequence 2. Tighten 1 thru 10 using the...