Manley Extreme Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.422 in Long - Big Block Chevy CS-REC-6P-XL This 6061-T6 Aluminum TH350 Shield

This 6061-T6 Aluminum TH350 Shield is SFI 4

Direct bolt-in w/ no additional modificationsVehicle Applications: 1973-2018 Chevrolet Silverado/Sierra 1500 (All)

5/8-18 in Inverted Flare Inlet

Profiled H-beam connecting rods are compatible with many popular stroker engines and the doweled caps provide a superb fit

Truck or SUV sound and perform as good as it looks

Manley Extreme Duty Exhaust Valve - 1.880 in Head - 0.342 in Valve Stem - 5.422 in Long - Big Block Chevy CS-REC-6P-XL This 6061-T6 Aluminum TH350 ShieldProduct Description: Exhaust Valve Extreme Duty 1. 880 in Head 0. 342 in Valve Stem 5. 422 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