Cylinder Head Accessories

Cometic GM Gen V LT1/LT4 V8 4.200 Bore MLS Head Gasket w/ SEG rings - .051" C15598-051  Cometic stays on the forefront of gasket design technology by utilizing in-house dynamometers and engine assembly rooms to bring its distributors, retailers...

Cometic GM Gen V LT1/LT4 V8 4.150 Bore MLS Head Gasket w/ SEG rings - .051" C15597-051  Cometic stays on the forefront of gasket design technology by utilizing in-house dynamometers and engine assembly rooms to bring its distributors, retailers...

Cometic Gen V LT1/4 4.150 Bore MLx Head Gasket C15203-040 Gen V LT1/LT4 4.150" Bore. 0.040" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder without...

GM LS Head Studs 8740 Material - 1997-2003, 12-Point These Head Studs are made of 8740 (190,000 psi tensile strength) material and utilize a 12-point head. Suggested use in OEM replacement, street, non boosted applications.  Recommended...

Cometic Gen V LT1/4 4.100 Bore MLx Head Gasket C5038-028 Gen V LT1/LT4 4.100" Bore. 0.028" Compressed Thickness MLx Gaskets utilize an integrated "stopper" layer for combustion chamber sealing and improved clamp load around the cylinder without...

LSXceleration Head Bolt Kit for GM LS '97-'03 (12498545) One Kit Services Complete Engine Torque Procedure for GM LS Head Bolts #158545-KIT 1. Tighten 1 thru 10 to 22Ft-Lbs (30NM) in sequence 2. Tighten 1 thru 10 using the Torque Angle Method to...

ARP 2000 Pro Series GM LSA Head Bolt Kit 234-3726, 12-Point These ARP Pro Series Head Bolts are made of 2000 (210,000 psi tensile strength) material and utilize a 12-point head. They are cold-forged and heat treated prior to thread rolling and...

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

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    

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...

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