My dad had a friend who put a 389 in a 56 Chevy 2 ton log truck, back when the truck was pretty new. It ran like crazy and pulled stronger than anything around for a little while. Then they learned why truck motors have lower compression, when it broke several pistons on a long hard pull. I still think for what we do with our old trucks it's a cool swap. Remember, the big motor for trucks back then was a Buick 322.
'65 C-10, 65 L-60, 65 C-80, 72 C-60 & and a bunch of old Chevy cars.
Never time to do it right, always time to do it over.
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