manley chevrolet small block exhaust valve kit 1 625in head dia 5 465in o a length 0 3415in stem Aftermarket * Aftermarket onderdeel van hoge

* Aftermarket onderdeel van hoge kwaliteit

includes our famous Touring mufflers with outstanding flow numbers that generate great power enhancements

producing a greater strength material than 8740

If you want to give your custom build or classic muscle car a sound unlike any other

positief type

manley chevrolet small block exhaust valve kit 1 625in head dia 5 465in o a length 0 3415in stem Aftermarket * Aftermarket onderdeel van hogeManley 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