Cylinder Head Accessories

GM LS 2004-2014 12-Point Head Bolt Kit TBS-002ERL Features & Benefits:  Material - Chromemoly Alloy Steel Yield Strength - 170,000 PSI Finish - Black Oxide Reduced Wrenching Size – Provides Extra Socket Clearance Choose Form...

GM LS 1997-2003 12-Point Head Bolt Kit TBS-001ERL Features & Benefits:  Material - Chromemoly Alloy Steel Yield Strength - 170,000 PSI Finish - Black Oxide Reduced Wrenching Size – Provides Extra Socket Clearance Choose Form...

GM LS 2004-2014 Hex Head Bolt Kit HBS-002ERL Features & Benefits:  Material - Chromemoly Alloy Steel Yield Strength - 170,000 PSI Finish - Black Oxide Reduced Wrenching Size – Provides Extra Socket Clearance Choose Form...

GM LS 1997-2003 Hex Head Bolt Kit HBS-001ERL Features & Benefits:  Material - Chromemoly Alloy Steel Yield Strength - 170,000 PSI Finish - Black Oxide Reduced Wrenching Size – Provides Extra Socket Clearance Choose Form...

Mahle MLS Head Gasket 54445 - 6.0L GM 6.0L VIN H N & U 1999-2008 CONSOLIDATED MLS  Multi-layer steel (MLS) cylinder head gaskets. Increase torque and performance while decreasing oil consumption and emissions. The development goals in engine...

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...

LSXceleration OE Replacemant Head Bolts for GM LS '04 & Up (Like GM # 17800568) 2 bolt kits needed per engine (1 Bolt kit does 1 cylinder head).

LSXceleration OE Replacemant Head Bolts for GM LS '97-'03 (Like GM # 12498545) 2 bolt kits needed per engine (1 Bolt kit does 1 cylinder head).

ARP 8740 Pro Series GM LT1/LT4 Rocker Arm Studs 234-7208 ARP Pro Series Rocker Arm Studs are made from 8740 (190,000 psi tensile strength) material. They are held to a concentric tolerance of only .005" T.I.R. from thread pitch to thread pitch. These...

ARP GM LS Rocker Arm Studs 234-7207 (5/16") (Excludes LS7) ARP Pro Series Rocker Arm Studs are made from 8740 (190,000 psi tensile strength) material. They are held to a concentric tolerance of only .005" T.I.R. from thread pitch to thread pitch. These...

ARP 2000 Pro Series GM LT1/LT4 Head Stud Kit 234-4343 - 12-Point (With M8 Corner Bolts) These ARP Pro Series Head Bolts are made of 2000 (220,000 psi tensile strength) material and utilize a 12-point head. They are cold-forged and heat treated...

ARP 2000 Pro Series GM LT1/LT4 Head Stud Kit 234-4342 - 12-Point (Without M8 Corner Bolts) These ARP Pro Series Head Bolts are made of 2000 (220,000 psi tensile strength) material and utilize a 12-point head. They are cold-forged and heat treated...