Standard replacement exhaust valve for 1275cc engines using single thin groove keepers. This valve measures 1.154" (29.3.mm) in diameter, and is 3.57" long. All 12G1316 (smog), 12G940, and CAM prefix heads used these 29.3mm exhaust valves.
Exhaust Valve - 1.15" Thin Groove (12G940 Heads)
Fits:
Most 12G940 and late model CAM 1275cc cylinder heads.