Offenhauser 3647 Buick Oil By Pass

Description

Offenhauser Oil By-Pass Unit for Buick V8 thru 1960.

When switching starter to the right side of the engine, the oil filter has to be removed.  If no oil filter is to be used, the Ford oil pressure sending unit may be installed in either the “In” or “Out” openings of the By-Pass Plate.  Olds uses stock spring and cap inside by-pass.