Is a GMC truck just a dressed up Chevy truck?

YY1 said

I owned (well, my mom and me) two of them. A 70 4 barrel in a lesabre and a 72 2 barrel in a skylark.

The v6 in those mid 60's gmc trucks was 304 cubic inches IIRC. Looked like a V8 except for the spark plug and exhaust port count.

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RustyRatRod said

The early GMC truck V6s were from 305 all the way to 478 cubes.

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In the early 80s my brother picked up from a coworker a '67 GMC 1 ton (I guess that would make it a 3500) flatbed dually with a 351 V6, 4 speed, and Detroit locker. It got horrible gas mileage but nowadays would be a cool truck to find again. Dad bought it from my brother, then Dad sold it in the late 80s.