PAC Racing 1300 Series Dual Valve Spring - 863 lb/in Spring Rate - 1.160 in Coil Bind - 1.514 in OD - Set of 16 PAC-1331 26-NSO-N-SM each one is 100% pressure-tested

each one is 100% pressure-tested and shipped in expanding foam packaging

The Bolt-on Front End Travel Limiter is designed for racecars with factory upper A-arm suspensions

Locking pins for easy storage when folded flat to the wall

000 pound capacity

5 amp single spark through high rpmEasy-to-adjust mechanical advance with supplied springs and stop bushingsVacuum advance canister for improved economy (can be locked out)CNC machined billet aluminum housing and billet aluminum baseHousing is 5/8” smaller in diameter than stock Ford distributorsMaintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm rangePolished steel shaft is QPQ coated and guided by a sealed ball bearingAdvance plate and weights are fine blanked from chrome moly steel and QPQ coated for friction reductionMechanical advance assembly can be locked out for crank trigger systemsAdvance weight pins are staked and tig welded to the plateNylon pads ensure smooth operation of the advance weightsSupplied with Black Small Diameter Cap with HEI style terminals and race rotor (will accept 8441 Cap-A-Dapt)Does not require an MSD Ignition ControlSimple and clean installation with only three wires to connectNote: Will not fit XD and later Australian 351 Cleveland engines

PAC Racing 1300 Series Dual Valve Spring - 863 lb/in Spring Rate - 1.160 in Coil Bind - 1.514 in OD - Set of 16 PAC-1331 26-NSO-N-SM each one is 100% pressure-testedProduct Description: Valve Spring 1300 Series Dual Spring 863 lb in Spring Rate 1. 160 in Coil Bind 1. 514 in OD Set of 16 PAC Racing Springs is part of the Race Winning Brands Family. With more than 100 years of spring manufacturing experience. We understand the demands of racing and provide a commitment to all of our customers to provide the best service possible. We continue to expand products and offer expanded onsite technical services at various