The 270 in my 370 grain truck was running great, so I was able to send to someone that needed one, I have a 302 for the next one.

I would encourage you to keep your drivetrain all GM, a little effort can get your engine up and running again without having to make new mounts, linkages, controls, etc., again to have an oddball truck.

Ed
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Last edited by EdPruss; 10/12/2021 4:39 PM.
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.