Spark plug gap for a 1977 Corvette using ACDelco R45TS is .035
1978 Chevrolet Corvette 5.7L 4BL OHV 8cylThe Spark Plug Gap.045 (In thousandths of an inch)
The spark plug gap for your Mercedes is .032
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The spark plug gap for a 1977 Olds 403 is listed as .060 inches.
.35 Gap
0.40
The Gap is .030
All V8 Chevy plug gaps in 1977 was factory .045
.035"
.045
The spark plug gap on 1977 Chevy truck 454 should be set at .045 inches. Spark plugs are preset at the factory and should need no adjustments prior to being installed.
.045"