M-6316-K351. New stock replacement damper for most 302/351W engines with left-hand water pump inlet. Fits 1970-1980 302, 1970-97 351W crankshafts with external balance, 28.2 oz.-in. balance factor. 4-bolt pulley pattern. 3.950" overall length. Includes E8TZ-B damper and F1TZ-A timing pointer. NOTE: specs & photos may vary