Engine - Bare Block - 4.125 in Bore - 9.250 Deck - Standard Main - 6-Bolt Mains - 1-Piece Seal - 6-Bolt Head - Aluminum - Natural - GM LS-Series - Each
Engine - SHP Pro - Bare Block - 4.125 in Bore - 9.025 Deck - 400 Main - 4-Bolt Mains - 2-Piece Seal - BBC Camshaft Bore - Iron - Small Block Chevy - Each
Engine - SHP Pro - Bare Block - 4.125 in Bore - 9.025 Deck - 350 Main - 4-Bolt Mains - 2-Piece Seal - BBC Camshaft Bore - Iron - Small Block Chevy - Each