COMP Cams 3/8" Hi-Tech Poly Lock BR10123 2001-2004 GMC Sierra 2500 HD

2001-2004 GMC Sierra 2500 HD

1975-1976 Plymouth Duster

P/N 13214 double adjsutable bypass regulator

Unshielded Breathers

250" rollers are cold rolled

COMP Cams 3/8" Hi-Tech Poly Lock BR10123 2001-2004 GMC Sierra 2500 HDThe best polylock for high end race applications, this Hi Tech polylock is designed for 3 8" Ultra Pro Magnum and Ultra Pro Magnum XD rockers. The COMP Cams philosophy has never changed: make the highest performing products possible and lead the industry in technological development. One thing COMP Cams has never forgotten: Performance is defined by what happens out on the race track. Because no matter what happens on a dyno or in a computer model, if