Maximize 4.000 in. and larger bore combinations with AFR 245cc LSX Mongoose Strip cylinder heads. These aluminum cylinder heads feature 100 percent CNC-ported chambers, intake, and exhaust ports, and use A356 aluminum castings. They're also equipped...

AFR 215cc LSX Mongoose Strip cylinder heads are strong, versatile, and a great match for aggressive applications and large stroker engines where your aim is enhancing street/strip performance. These aluminum heads have 100 percent CNC-ported chambers,...

AFR 215cc LSX Mongoose Strip cylinder heads are strong, versatile, and a great match for aggressive applications and large stroker engines where your aim is enhancing street/strip performance. These aluminum heads have 100 percent CNC-ported chambers,...

LS3/L92 Cylinder Head Porting Service – Customer Supplied HeadsTransform your GM LS3/L92 cylinder heads into high-performance powerhouses with our professional porting service. Backed by extensive R&D on the flow bench and engine dyno, our...

2004 & Later LS2/LS3/LS7 Cylinder Head Bolt Kit New GM Kit of 15 bolts for 2004 & later LSX engines 1 kit per cylinder head; order 2 per engine Head bolts are torque to yeild so they cannot be reused on LSX engines

Gasket, New GM 7-Layer Steel LS9 Head Gasket Kit, Pair. Will also fit LSA supercharger engines. Bore (in)   4.100 in. Bore (mm)   104.140mm Gasket Material   Composite Compressed Thickness (in)   0.051 in...

GM LS2/L76 6.0L MLS Cylinder Head Gasket Kit 4.020" Bore- 1 PAIR of Head Gaskets Bore (in): 4.020 in. Bore (mm): 102.108mm Gasket Material: Composite Compressed Thickness (in): 0.051 in. Compressed Volume (cc): 10.608cc   Free Ground Shipping in...

ARP Head Bolts Fits 2004-2020 GM Gen IV 5.3L 6.0L 6.2L LS Engines. These Pro series cylinder head bolts from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining, and are rated at a whopping...

ARP 12 Point Head Studs Kit LS6/LS2 Heads, 2004 & Up. These Pro series cylinder head bolts from ARP are cold-forged to ensure molecular integrity. They are heat-treated prior to thread rolling and machining, and are rated at a whopping 190,000 psi...