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5212 4345AB
82213273AD
which transition into a Y-pipe or X-pipe to allow easy connection to your factory outlet or stainless steel outlet
Accommodates engine movement
manley chevrolet big block severe duty pro flo 5 325in o a length intake valves set of 8 2015-ford-f-150-esi4118059 5212 4345ABManley 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 cycles, while competitors failed after just
