Manley Race Master Intake Valve - 2.300 in Head - 0.342 in Valve Stem - 5.494 in Long - Big Block Chevy 421991 P/N 300-230 (see below in

P/N 300-230 (see below in the service parts section)

2015) against 17 competitors wideband UEGO Air/Fuel Controllers

2 programmable RF channels

and 1967 to 1973 Mercury Cougar

Firm Polyurethane Features Grooved Bores

Manley Race Master Intake Valve - 2.300 in Head - 0.342 in Valve Stem - 5.494 in Long - Big Block Chevy 421991 P/N 300-230 (see below inProduct Description: Intake Valve Race Master 2. 300 in Head 0. 342 in Valve Stem 5. 494 in Long Stainless Big Block Chevy Sold Individually Manley Performance high performance and racing engine parts have been powering winners since 1966. Since our inception in March 1966, Manley Performance Products has been at the forefront of the high performance automotive industry. Founded by gearhead Hank Manley shortly after his graduation from Brown