Fits:  OEM: 93320A13
MCM V6 & TBI engines w/ 2-piece exhaust manifolds (0M614999 & below)
MCM/MIE/Ski V8 (305, 350, 377, 454 & 502 CID) engines w/ cast iron elbows (0M299999 & below)
MCM V8 (305 & 350 CID) carb. engines (0M300000-0M599999)
MIE & Ski carb. engines (0M300000-0M316999)