Manley Big Block Chevy 2.350in Diameter 0.350in Longer Length Extreme Duty Exhaust Valves - Set of 8 SPECIAL-ORDER for more spirited driving

for more spirited driving

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

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they have achieved a cooling effect of approximately 5 degrees C or more at the minimum intake air temperature and approximately 15 degrees C or more at the maximum intake air temperature under full normal conditions

Manley Big Block Chevy 2.350in Diameter 0.350in Longer Length Extreme Duty Exhaust Valves - Set of 8 SPECIAL-ORDER for more spirited drivingManufacturer 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