Cylinder Head Accessories

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 MX    

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...

LSXceleration Stainless Steel 8mm x 1.550 LS Exhaust Valve 15-21550-1 Stainless Steel LS Valves 1.550" Head x 8mm Stem x 4.915" OAL x 0.160" Tip Features: Hardened Stem Tip Chrome Plated Stem Fully Machined Surface Swirl Polished Undercut Stem 21.4N...

LSXceleration Stainless Steel 8mm x 2.000 LS Intake Valve 15-22000-1 Stainless Steel LS Valves 2.000" Head x 8mm Stem x 4.870" OAL x 0.160" Tip Features: Hardened Stem Tip Chrome Plated Stem Fully Machined Surface Swirl Polished Undercut Stem 21.4N...

Earl's LS Steam Tube Kit LS0016ERL 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...

Cometic Gen V L83 3.875 Bore MLx Head Gasket C15426-052 Gen V L83 3.875" Bore. 0.052" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder without increasing...

LSXceleration GM Gen V LT1/L86 6.2L MLS 5-Layer Head Gasket 14-88943 (Like GM 12688943) 4.0944" (104mm) bore x .0523" (1.33mm) thickness x 5-layer MLS.  Made in MX    

Chevrolet Performance Gen V L83, L86, LT1, LT4 Head Bolt 11611976 1 needed per engine

Chevrolet Performance Gen V L83, L86, LT1, LT4 Head Bolt 11546959 19 needed per engine

LSXceleration Gen V L83, L86, LT1, LT4 Head Bolt Kit 1 kit needed per engine. 

LSXceleration GM Gen V L83 5.3L MLS 5-Layer Head Gasket 14-22325 (Like 12622325) 3.835" (97.4mm) bore x .052" (1.33mm) thickness x 5-layer MLS. Made in Germany.    

Dart Stainless Steel GM LS 2.165 Intake Valve 21392165 Dart stainless steel valves are designed to withstand the pressures of high-lift roller cams and feature a head design that promotes high flow. They are constructed of high-strength stainless steel...