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| A set of 16 21M4 High Performance Stainless Steel Rockers, for your small block Ford. They are 1.6 ratio and for 7/16 rocker studs. Fits any SBF V8 motors. They’re built to last, as well as with-standing a high valve spring load of 750+ PSI. These roller rocker will clear center bolt valve covers. These are perfect for street and race enthusiast. Poly locks are included. |
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