Re: Stuck spark plug
I have always used NGK when they crossed over, I have a set in my 1966 P/U V6 351.
Most of the time an NGK covers about 1 1/2 heat range of a normal plug.
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Clyde McKaba
Abbeville,SC
1961 GMC Suburban 4WD 305 V6, 4spd
1966 GMC 3/4T P/U 351 V6, Turbo 400,Gear Vender OD
1969 GMC Suburban 1/2T
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