1946-1948 Chevrolet Fleetline Base, Chevy V8 Conversion. 1946-1948 Chevrolet Fleetmaster Base, Chevy V8 Conversion. 1 X Aluminum Shroud. The fan shroud basically houses the fan blades securing it in place and keeping it from damaging the other engine components that may disturb the smooth and even operation of the engine.
