Manley Big Block Chevy 2.350in Diameter 0.350in Longer Length Extreme Duty Exhaust Valves - Set of 8 SPECIAL-ORDER AT2-HDG6 kit features ACT's most

AT2-HDG6 kit features ACT's most popular Heavy Duty pressure plate

CSF went through several different prototypes using cores of varying thicknesses

KW COILOVER KIT V3 - 35285004

0mm Stem Manganese Bronze Exhaust Valve Guide - Single (Drop Ship Only)

Manley Big Block Chevy 2.350in Diameter 0.350in Longer Length Extreme Duty Exhaust Valves - Set of 8 SPECIAL-ORDER AT2-HDG6 kit features ACT's mostManufacturer Part # : 11880 8 Market Description Manley Severe Duty Valves deliver the ultimate in strength, reliability, and high performance durability. Engineered for extreme gasoline engine temperatures, these valves are crafted from exclusive materials (XH 428 for exhaust and NK 844 for intake), offering unmatched tensile strength compared to competitive alloys. In fatigue testing at 40,000 psi and 1400F, Manley exhaust valves endured 100 million