Posted by RN on October 31, 2013 at 09:40:12 from (205.213.104.118):
In Reply to: Engine swap posted by notjustair on October 30, 2013 at 19:21:14:
Engine to bell housing bolt pattern Chevy was a circle, BOP/GMC truncated cone. Universal bolt pattern bell housings came out late 1970s? GMC trucks depending on models/years could have a Chevy engine or their own engine with the truncated cone engine bolt pattern-and the Pontiacs were a good swap, GMC 360 something V8 was same basic block as 389/400 Pontiac. Pontiac had speed equipment available in catalogs by engine, GMCs engines didn"t have much specific speed equipment available. Big Buicks used to one option for replacing the GMC 6 cylinders- engine bolt pattern to bell housing, slightly narrower heads to fit in engine bay and header sets that tucked as close as possible to block to help squeeze in to hot rod projects. Guy I used to work with had Buick in 1940 Ford pickup that looked like a "restored classic" as license plate indicated instead of hot rod. Illinois State police didn"t open hood and inspect it at time of issue of speeding ticket well over 100mph- motion for dismissal as judge must know restored "stock" 1940 engine wouldn"t do much better than 80 mph and slightly hot rodded flathead might make 100mph but not way over as the ticket said-like about 130. Judge asked if police inspected at the time, dismissed ticket when they said they hadn"t. Clerk advised judge said be careful now, police WILL inspect next time. 400 inch Buick does make more power than 250 or so inch flatead bored V8-100 replacement of V8-85. Collector plates issue for engine swaps other make not usually done- but body year is main thing they were going by and body modifications. RN
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