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Chevrolet spark plug

Champion Spark Plugs for Chevrolet Inboard Motors

Champion spark plugs are original equipment on many inboard and outboard motors and are excellent replacements for everyday engine maintenance. Please view the application guide below. You may also find the Champion spark plug code helpful.

Year Model / Engine Copper Plus Plug Alternate Plug Gap
1969-1962 Marine 194 CID 6-Cylinder RN14YC 0.035
1970 Marine 230 CID 6-Cylinder RV15YC4 0.03
1969-1962 Marine 230 CID 6-Cylinder RN14YC 0.035
1984-1979 Marine 250 CID 6-Cylinder RV15YC4 0.035
1978-1970 Marine 250 CID 6-Cylinder RV92YC 0.035
1969-1962 Marine 250 CID 6-Cylinder RN14YC 0.035
1967-1955 Marine 283 CID V8 RJ14YC 0.035
1990-1970 Marine 292 CID 6-Cylinder RV15YC4 0.035
1969-1963 Marine 292 CID 6-Cylinder RN5C N5C 0.035
1969-1967 Marine 302 CID V8 RJ14YC 0.035
1973-1971 Marine 307 CID V8 RV92YC 0.035
1970-1968 Marine 307 CID V8 RJ14YC 0.035
1969-1961 Marine 327 CID V8 RJ12YC J12YC 0.035
1990-1971 Marine 350 CID V8 RV15YC4 0.035
1970-1967 Marine 350 CID V8 2-bbl. RJ14YC 0.03
1970 Marine 350 CID V8 4-bbl. RJ14YC 0.035
1990-1971 Marine 400 CID V8 RV15YC4 0.035
1970 Marine 400 CID V8 RJ14YC 0.035
1990-1973 Marine 427 CID V8 RV15YC4 0.035
1972-1971 Marine 427 CID V8 RV9YC 0.035
1990-1979 Marine 454 CID V8 RV12YC 0.035