<B>Competition Cams 190021 3/8" SBC Rocker Arm Review</b><P>http://tinyurl.com/p5o546h <P><P> Competition Cams 190021 3/8" SBC Rocker Arm <P>For small block Chevy applications with 3/8 inch studs, 1.6 Ratio<P>Designed for high performance street and race engines<P>Precision-sorted trunion bearings withstand elevated valve spring pressure and valve lift<P>Additional clearance, up to 1.650 inch O.D. valve spring<P>
