PAC Racing Valve Spring Retainer - 0.940/0685" OD Steps - 1.250" Dual Spring - Steel - (Set of 16) 747007 These quieter sounding systems are

These quieter sounding systems are designed to replace original rear mounted mufflers located behind the rear axle using factory style connections

ApprovedDoes not require an MSD Ignition ControlSupplied with a HEI style distributor cap and rotor (accepts Cap-A-Dapts)Mechanical advance assembly can be locked out for crank trigger systemsPolished steel shaft is QPQ coated and guided by sealed ball bearingsMaintenance-free magnetic pickup and precision reluctor create stable trigger signals throughout the rpm rangePowerful built-in module produces a 7

The Max Effort high output lifters were designed specifically for higher revving applications

33 in W x 19 in H x 3 in D

it is far from the only new design feature

PAC Racing Valve Spring Retainer - 0.940/0685" OD Steps - 1.250" Dual Spring - Steel - (Set of 16) 747007 These quieter sounding systems areProduct Description: Valve Spring Retainer 8 Degree 0. 940 0685 in OD Steps 1. 250 in Dual Spring Steel Natural 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