MANLEY 11845-8 Exhaust Valve Kit Severe Duty Series (1.880" Head Dia., 5.522" O/A Length, 0.3415" Stem) for CHEVROLET Big Block ymm_46 Description HAWK HB112Z

Description HAWK HB112Z

Description HAWK HB581G

and can withstand a higher peak burst rate

Ensures correct operation of airbag systems

MANLEY 11845-8 Exhaust Valve Kit Severe Duty Series (1.880" Head Dia., 5.522" O/A Length, 0.3415" Stem) for CHEVROLET Big Block ymm_46 Description HAWK HB112ZDescription MANLEY 11845 8 Exhaust Valve Kit Severe Duty Series (1. 880" Head Dia., 5. 522" O A Length, 0. 3415" Stem) for CHEVROLET Big Block Manley Severe Duty Valves are designed for high performance and racing applications. Exhaust valves are manufactured from XH 428 material, while Intake valves are manufactured from NK 844 material. Severe Duty Valves have undergone rigorous fatigue testing. During normal operation, valves experience 20,000 to