Cylinder Heads

Dart Pro 1 LS7 Aluminum Cylinder Head 11061183 - 285cc CNC Rectangle Port, Assembled PRO 1 LSX LS7 285CC Head Spec Sheet Dart’s new PRO1 LS 12° 285cc CNC Aluminum rectangle port cylinder head for GM LS7 Compatible small block V8 engines take...

Dart Pro 1 LS7 Aluminum Cylinder Head 11061080 - 285cc CNC Rectangle Port, Bare PRO 1 LSX LS7 285CC Head Spec Sheet Dart’s new PRO1 LS 12° 285cc CNC Aluminum rectangle port cylinder head for GM LS7 Compatible small block V8 engines take...

Dart Pro 1 LS7 Aluminum Cylinder Head 11060000 - C-Core Casting Cast un-ported head. Has 6-bolt per cylinder style bolt pattern. Recommended for use with a 4.125 in. or larger bore.  Heads are sold individually.

LSXceleration GM LS9 MLS 7-Layer Head Gasket 15-22033 4.100" bore x .055" thickness x 7-layer MLS. Made in Germany.    

Stock Replacement GM LS 1.590 Exhaust Valve 15-1590  

Stock Replacement GM LS 2.165 Intake Valve   

GM Gen V LT4 MLS Head Gaskets 12654622 4.100" bore x .055" thickness x 7-layer MLS    

Holley LS Steam Tube Kit 26-551 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...

Chevrolet Performance GM LS9 MLSHead Gaskets 12622033 4.100" bore x .055" thickness x 7-layer MLS    

Mahle Performance MLS Head Gasket 55045 - 4.190 Bore .051 Thickness 4.190" bore x .051" thickness MAHLE performance MLS head gaskets are comprised of 3 stainless steel layers. Sealing beads surround the combustion chamber and coolant passages emphasizing...

Mahle Performance MLS Head Gasket 55044 - 4.130 Bore 4.130" bore x .051" thickness MAHLE performance MLS head gaskets are comprised of 3 stainless steel layers. Sealing beads surround the combustion chamber and coolant passages emphasizing clamp load in...

Mahle Performance MLS Head Gasket 55043 - 4.100 Bore 4.100" bore x .051" thickness MAHLE performance MLS head gaskets are comprised of 3 stainless steel layers. Sealing beads surround the combustion chamber and coolant passages emphasizing clamp load in...