- Sep 15, 2021
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- What vehicle(s) do you drive?
Here are Pontiac 455 and Buick 455 main bearings modified for use in Cad500. The Cad500 thrust bearing must be used as the Pontiac and Buick thrust bearings arent the proper width. The Pontiac bearing is 3/4 groove. The Buick is 1/2 groove. The Buicks will be installed in Cad500 to test. My crankshaft is .030 under. The Pontiacs are .010. The Buicks are the top set.