Manley Severe Duty Exhaust Valve - 1.600 in Head - 0.342 in Valve Stem - 5.036 in Long - Small Block Chevy - Set of 8 11539-8 EXT-ANT-KIT-UHF-ABH 7370Since 1938

7370Since 1938

Outlaw Shifter 3-Speed Forward Shift Pattern without Black-Anodized Cover

2007-2013 GMC Sierra 1500 WT Standard Cab Pickup

9LSU sensor and can utilize both the factory calibration resistor and free-air calibration methods**

Sensor data must be present on the OBD II data stream to function

Manley Severe Duty Exhaust Valve - 1.600 in Head - 0.342 in Valve Stem - 5.036 in Long - Small Block Chevy - Set of 8 11539-8 EXT-ANT-KIT-UHF-ABH 7370Since 1938SEVERE DUTY SERIES Superior Stainless for High Temperature Gasoline Engines Exhaust Material XH 428 with Double the Ultimate Tensile Strength ( at 1500 F ) over the competition Intake Material NK 844 with 1000 Times Better Fatigue Strength than competitors offerings 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