- Not vehicle specific. Customer is responsible for confirming this product fits their vehicle.
ARP 300-8243 - Adjustable 3/8 12pt rocker arm nut kit
ARP Perma-Loc Rocker Arm Adjusters are manufactured from heat-treated, premium-grade 8740 chromoly steel, these adjusters provide 190,000 psi tensile strength for the utmost in reliability. The are available with exclusive heads with special shouldered stops to hold the adjusting wrench, precision CNC-machined threads to ensure optimum seat pressure, and flush-machined set screws for proper contact on the studs.Note: TDot Performance is an authorized dealer of all ARP products, so your new product will include the full factory warranty. What more? We are proudly Canadian but have warehouses in both Canada & USA, so whether you are Canadian or American, you WILL NOT pay any Custom, Duties or Brokerage fees!
Since 1968, ARP has been engineering bolts, studs, nuts, and other fasteners for engines, cylinder heads, headers, wheels and transmissions. The company is the world leader in automotive fasteners and many top engine builders rely on ARP racing products to hold their engines together.