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
NOTE: Please be patient as for our parts list is always updating and changing. Do to supply chain issues and long lead times on some items, please call if you have any questions before ordering!