Home / Bolts & Studs / “Adjustable 3/8″” 12pt rocker arm nut kit” “ARP Porsche 911 AC 2.0L & 2.7L crankcase thru bolt kit” has been added to your cart. View cart “Adjustable 3/8″” 12pt rocker arm nut kit”€ 139,68 "Adjustable 3/8"" 12pt rocker arm nut kit" quantity Add to cart SKU: ARP-300-8243 Categories: Bolts & Studs, Motor Brand: ARP Description Description Country of Origin: USA Related products Bolts & StudsEngine & Performance ARP cabinet with black hex accessory bolts Bolts & StudsEngine & Performance Dodge 5.9L 12V Cummins ’94-’98 custom age hsk Bolts & StudsEngine & Performance Chevy Duramax 6.6L diesel CA625+ custom age HSK Bolts & StudsEngine & Performance SB GM Pre ’03 CA625+ 12pt head stud kit