Rodeck +350 aluminum sprint car block. 4.160 bore, 400 mains, STD cam location and oil pan rails, 9.015" deck height, .842 lifter bores, and no fuel pump boss or oil filter boss. Center main web has a crack starting out towards cylinder bore, not to cam tunnel. Diamond pistons are in very good shape and for -12 head with 4.160 bore and 1.100"CH (3.800 stroke x 6.000" rod). $1500 OBO Pics sent upon request. 440-371-8926