Chevrolet Performance LSX Iron Block 3.880 Bore / 9.720 Deck

Chevrolet Performance LSX Iron Block 3.880 Bore / 9.720 Deck, The Chevrolet Performance LSX Bowtie engine blocks can accept a maximum stroke of 4.250 in., a maximum bore of 4.250 in., and they can support displacements of 454 cu. in. or more. The blocks feature cast iron construction with a powdercoated orange finish. They accept all Gen III and IV LS style cylinder heads, crankshafts, camshafts, and other components GM Performance LSX Cast Iron Block  Bare Block  3.880 Bore 9.720 Deck  6 Bolt Main 1 Piece Seal  Standard Cam Location Front oil feed lines that can be plugged or restricted for mechanical flat tappet or mechanical lifter applications Can be safely machined to 9.200 in. deck height 1054 billet steel 6-bolt main bearing caps * 6-bolt cylinder head bolt pattern  Cam bores that can be machined to accept 60mm roller bearings  Can be machined for larger diameter lifters  External oil pump feed at the rear  Added 7th transmission bolt hole to work with early-style GM transmiss