Roush Performance
2012 BOSS 302R Valve Spring Kit – Ford Racing
Valve spring used on 2012 Ford Mustang Boss 302 engine Higher seat pressure than found in the factory base valve spring 8000 rpm compatible Use with camshaft sets up to 13mm lift Can be used on factory Ford base 5.0L Ti-VCT head Special Order, Please allow for longer than normal lead times.
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