Will a Rochester 4 barrel carburetor off Chevy 350 fit Oldsmobile 350?
No, a Rochester Quadrajet 4-barrel carburetor from a Chevy 350 will likely not fit a Oldsmobile 350. While both engines are 350 cubic inches, their intake manifolds are different. The bolt patterns, throttle linkage, and even the fuel inlet and vacuum connections are not interchangeable. You'd need a Rochester Quadrajet specifically designed for the Oldsmobile 350 intake manifold.