"Blackout Series" 1.7 Ratio Adjustable Roller Rocker Arm Kit
This is our new "Blackout series" 1.7 adjustable roller rocker arm kit with dyno proven power gains. These are 100% made in the USA and feature a heavy duty fully rollerized fulcrum and roller tip. To utilize the 1.7 ratio you will need .100" shorter pushrods when compared to stock, we offer 5/16"(Stock head) and 3/8" *(For use only on our competition heads unless you clearance your head) diameter .080' wall hardened pushrods. On most roller rocker arm kits and especially on adjustable kits you will have to space the valve cover up at least 1/2' for clearance from the added height of the over-sized rocker arms. We offer one of the best solutions for this issue with our 5/8" Billet Valve Cover Spacer Kit which is also listed on our site.