Cylinder Head Accessories

Stock Replacement GM LS 1.55 Exhaust Valve    

MLS HEAD GASKETS – GM LS 6.0L, 6.2L *Fits VIN's K, Y 6.0L Engines Multi-layer steel (MLS) cylinder head gaskets.Increase torque and performance while decreasing oil consumption and emissions. The development goals in engine construction determine...

Stock Replacement 1.890 Intake Valve   

Victor Reinz LS1 Head Gasket 54442 - 4.8L, 5.3L, 5.7L Multi-layer steel (MLS) cylinder head gaskets. Fits: 4.8L Vin Code (C) 5.3L Vin Codes (0, 3, B, J, M) 5.7L (LS1) Increase torque and performance while decreasing oil consumption and emissions...

Victor Reinz 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...

Stock Replacement 2.000 Intake Valve   

Chevrolet Performance MLS Head Gasket 12589226 - 5.3L, 5.7L Multi-layer steel (MLS) cylinder head gaskets. Fits: 4.8L Vin Code (C) 5.3L Vin Codes (0, 3, B, J, M) 5.7L (LS1/LS6)    

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 Hex Head, 8740, Pro Series LS Head Bolt Kit 134-3610 - 2004 & Up Except LS9 (Same Primary Bolt Length) These ARP Pro Series Head Bolts are made of 8740 (190,000 psi tensile strength) material and utilize a hex head. They are cold-forged and...

ARP 8740 Pro Series GM LS Head Stud Kit 234-4317 - 2004-Up, 12-Point These ARP Pro Series Head Bolts are made of 8740 (190,000 psi tensile strength) material and utilize a 12-point head. They are cold-forged and heat treated prior to thread rolling...

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 Hex Head, 8740, Pro Series LS1 Head Bolt Kit 134-3609 - 1997-2003 W/ 2 Primary Bolt Lengths These ARP Pro Series Head Bolts are made of 8740 (190,000 psi tensile strength) material and utilize a hex head. They are cold-forged and heat treated...

ARP CA625+ Pro Series GM LS Head Stud Kit 234-4314 - 2004 & Up, 12-Point These ARP Pro Series Head Bolts are made of Custom Age 625 Plus (260,000 -280,000 psi tensile strength) material and utilize a 12-point head. They are cold-forged and heat...

Mahle 4.8/5.3L MLS Head Gasket 54441 Multi-layer steel (MLS) cylinder head gaskets. Fits: 4.8L Vin Code (V) 5.3L LM4, LM7, L59 Vin Codes (P, T, Z) Increase torque and performance while decreasing oil consumption and emissions. The development goals in...

ARP 2000 Pro Series GM LS Head Stud Kit 234-4345 - 2004-Up, 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...

Ferrea Competition Plus Hollow Stem 8mm x 1.615 LS7 Exhaust 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...

ARP 2000 Pro Series GM LS1 Head Stud Kit 234-4344 - 12-Point These ARP Pro Series Head Bolts are made of 2000 (210,000 psi tensile strength) material and utilize a 12-point nut. They are cold-forged and heat treated prior to thread rolling and...

Chevrolet Performance MLS Head Gasket 12589226 - 5.3L, 5.7L Multi-layer steel (MLS) cylinder head gaskets. Fits: 4.8L Vin Code (C) 5.3L Vin Codes (0, 3, B, J, M) 5.7L (LS1/LS6)    

Cometic MLS LS 4.100 Bore Head Gasket - .070 Compressed Thickness GM Gen III/IV Small Block V8 LS Series MLS Head Gasket 4.100" Bore.Comprised of multiple embossed layers of stainless steel with the outer layers utilizing a viton rubber coating...

Dart LS Pro 1 205cc Head Parts Kit 28812200 Dart Head Parts Kits Include 4 Intake Valves 4 Exhaust Valves 8 Valve Springs 8 Spring Retainers 8 Spring Locators 8 Pair of locks 8 Seals *Parts Kit is for 1 head