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So I have both a Chevy radiator and a GMC radiator. Are there any differences between the two as far as performance or fitment? The GMC is for the 270 and the Chevy came off a 235. The truck is a 48 Chevy 6100.
I have no clue of any difference other than dimensions which one can measure and pressure capacity, check original truck specs for that. If unknown, 5 psi is usually safe.
Ed
'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.
So the pressure plate and flywheel I had on my 270 was an 11" with 9 mounting holes. All of the other pressure plates I have found have 6 holes. Why the difference? Should I replace it for an 11" with only 6 holes? I mailed the pressure plate to Jim Carters as a core. They junked it and cant find a replacement. What do I do now?
