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Big Block Chevy 396-454 chromemoly steel roller tip rocker arm

● Roller tip style.
● 4340 chromemoly steel rocker bodies
● Capable of withstanding valve spring loads up to 350lbs
● Poly locks and pivot balls required to match the model
● Wide assortment of ratios to suit almost any cam profile
● Packed in bliste
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●This Y&J rocker arm is machined from 4340 chrome-moly steel casting, which is stronger than ordinary stamped steel or cast aluminum rocker arms and can rate at 350 lbs of open valve spring.
●Less friction design for the roller and the valve stem.
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