Sportsman Crankshaft Dampner
M-6316-J351. Nodular iron crankshaft damper for late model sportsman oval track racing. Low cost performance damper. Fits 1970-80 302, 1970-97 351W crankshafts with external balance, 28.2 oz.-in. balance factor. 3-4 bolt pulley pattern. 3.000" overall length. NOTE: specs & photos may vary