0.035
.045
spark plug gap is .045 unless specified different by spark plug manufaturer.
valve cover gasket
On my 1992 350 van it's .35 gap
According to one of the Ford websites : For a 1992 Ford E-350 , 5.8 liter / 351 cubic inch V8 engine : ( the spark plugs are gapped at .044 inch )
The 1986 Chevrolet 350 cubic inch engine spark plug gap is .027. Most spark plugs will be pre-gapped by the spark plug manufacturer.
1969 GMC Truck C1500 1/2ton P/U 2WD 5.7L 2BL OHV 8cylThe Spark Plug Gap.035 (In thousandths of an inch 1969 GMC Truck C1500 1/2ton P/U 2WD 5.7L 4BL OHV 8cylThe Spark Plug Gap.035 (In thousandths of an inch)
AnswerThe spark plug gap is .035 on a 1993 GMC 350 TBI.
A/C spark plug is---R44T and the gap is 0.035
We have no way to show any diagrams or pictures. Sorry.
The spark plug gap for an AR135 spark plug on a 350 SBC should be set at .034 inches. This is equal to .86 mm so a spark plug set to .9 mm should work correctly.