Re: 632 engine
IIRC the V12 was a 702. Is it a V6? GMC made some big ones but not a 632. Assuming it's gas, of course.
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Alex V.
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1967 C10 Suburban, 350/NP435, Green/Green, PS, PB, HD cooling, charging, shocks, and springs.
1985 GMC C3500 SRW, Sierra Classic, 454/TH400, white/blue.
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