Easily mounts to any Big Block or Small Block Chevy intake manifold, and can be used in all racing and street-performance applications where a heavy-duty filler neck is required
Includes screw-in 1/8" N.P.T. hose fitting for expansion tanks, and accepts Moroso or standard size radiator cap (not included)
Can also be used as a heavy-duty replacement in our Filler Neck Kit No. 63420