Parts list: № Number Qty Name Options 1 AR51965 1 SHORT BLOCK ASSEMBLY (MARKED R47020) (SUB RE70108, AR71118, (2) R38614 AND (2) M72490) 1 AR94820 1 Short Block Assembly (MARKED R49650, R59850, R72128 OR R87558) (SUB FOR AR71120) (SUB RE53485, R54123, U13639, AR77489, AR100478 AND (6) R88043) Next page: 20-7A ENGINE SHORT BLOCK (REPLACEMENT) (WITHOUT OIL PUMP) [A22] 20-7C ENGINE OVERHAUL KIT (6404) [A24] 20-7E ENGINE UNDERHAUL KIT [B01] 20-7F TORQ-GARD SUPREME AND PLUS-50 ENGINE OIL [B02] 20-7F KIT FOR OFF-SEASON STORAGE (NOT ILLUSTRATED) [B02] 20-4 CYLINDER BLOCK FITTINGS AND MAIN BEARING CAPS (ENGINE SERIAL NO. 335846- ) [A18] 20-2 CYLINDER BLOCK FITTINGS AND MAIN BEARING CAPS (ENGINE SERIAL NO. -335845) [A16] 20-16 TACHOMETER DRIVE [B19] 20-15B CRANKSHAFT OIL SEAL AND HOUSING (ENGINE SERIAL NO. 335846- ) [B18] 20-15A OIL SEAL WITH WEAR SLEEVES AND TIMING GEAR COVER (ENGINE SERIAL NO. 335846- ) [B17]