.035
Most use a .045 gap.
0.06
.045
.035
The 1989 Chevrolet 350 cubic inch engine spark plug gap is dependent upon the engine application. The most common spark plug gap for the Chevy 350 engine is .027.
18436572 clockwise
.7 - .8 mm
A/C spark plug is---R44T and the gap is 0.035
The 1986 Chevrolet 350 cubic inch engine spark plug gap is .027. Most spark plugs will be pre-gapped by the spark plug manufacturer.
AnswerThe spark plug gap is .035 on a 1993 GMC 350 TBI.
Spark plug gap should be .060