| Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | GMC blocks are about 3" longer than 235's etc., thus the valve cover won't fit, that's why the GMC radiators are in FRONT of the radiator shroud vs. Chevy in the REAR. Modern, 7 main Chevys are about the same length as GMC blocks.
'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.
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