are there any mechanical parts from caprice or ss impala that wont fit my buick roadmaster?

Question

im wondering if parts such as rear disc brakes ,third members,oil and transmission coolers aftermarket suspension products that list ss and caprice but not buick i also wonder if i would be better off buying stock parts instead of getting donor car i would like to do as many upgrades as possible on a budget thanks buick is 95(lt1}

Answer 1

The muffler bearings are different, as are the kanuting valves.

Answer 2

Certain items will work. In a pinch, take the VIN from your Buick, and a VIN from a Caprice of the same year, and take some time to slowly build up a comparison list for each vehicle. This will then tell you what parts can be interchanged, and what cannot. From basic memory, Buick did not have a lot of common parts with Chevy, but there should be enough that are common, to help you out in your rebuilding task. Good luck.