Re: 1970 gmc big block V6
Welcome jonabalco!
It was my understanding that 1969 was the last year you could get the V-6 unless it was dealer installed. Is that the case with yours? Pictures please of the truck, engine and SPID in the glovebox. Give us the vin and let's work it through. Welcome!
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MusicMan70
1961 GMC Suburban
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