"Prior to developing their own engines, GMC used the Chevrolet Straight-6 engine and Pontiac V8 engine.

Partially true. GMC did use Pontiac OHV V-8's in th emid 50's as has been stated but they never used Chevrolet inline 6's in the 40's-50's. There are many differences in the two brands as most all here are aware.

Last edited by 53moneypit; 11/06/2013 8:02 PM.
1953 Chevy 5-window 3100
In the Stovebolt Gallery
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Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain