Exhaust Gaskets GM LS1/ LS6 Exhaust Header / Manifold Gasket - 1.875 in Round Port - Graphite - GM LS-Series - Pair

Head Gasket - GM LS1/LS6 Cylinder Head Gasket - 3.945 in Bore - 0.048 in Compression Thickness - Multi-Layer Steel - GM LS-Series - Each

Intake Gasket Set - GM LS1/LS2/LS6 Intake Manifold Gasket - 0.06 in Thick - 1.15 x 3.375 in Cathedral Port - Composite - LS1 / LS2 / LS6 - GM LS-Series - Pair

Exhaust Manifold Flange GM LS1/LS2/LS3/LS6 Header Flange - 0.375 in Thick - 1.89 in Round Port - Stainless - GM LS-Series - Pair

Main Bearing Set GM LS1/LS2/LS4/LS6 Main Bearing - XP - Standard - Extra Oil Clearance - GM LS-Series - Kit

Billet Water Filler Neck w/1.5 Hose Fitting Water Neck - 90 Degree - 1-1/2 in ID Hose - Two 3/8 in NPT Ports - 1/2 in NPT Gauge Port - Filler Neck - Billet Aluminum - Chevy V8 - Kit