◆Fitment:Fits all engines using 1/4-20 threaded bolts including: Small Block Chevy 283 305 327 350 383 400,except Pontiac ad Ford FE Engines using 5/16-18 threads.
◆High Quality Material:Made of durable iron with chrome plating, long service life.
◆Function:Assist in spreading the load created by valve cover bolts to better seal the valve cover gaskets.