OIL RESTRICTORS CHEV SB LATE GM BLOCK SHORT

Allstar's Steel, Allen Head, Oil restrictors for Small Block Chevrolet Bowtie Block, reduce the amount of oil flow to the top of the engine, reducing the risk of evacuating the oil pan in continuous high rpm engines while allowing more oil to be directed to the main and rod bearings. Restrictors have a .055i nch I.D. hole and include two extra O-ring seals. Package of 2.