QA1 Pro Coil High Travel Coil-Over Spring - 3.500" ID 10.0" Length 450 lb/in Spring Rate - Single Pigtail 91629029 The RPM Window Switch

The RPM Window Switch

E6R and E6DSR ignition systems

1975-1980 Pontiac Grand Prix

The hubs are available in all common bolt patterns with 1/2" or 5/8" studs

Designed to offer higher performance engines the cold temperature operational benefits of an SAE 20W' engine oil while providing the desired film strength

QA1 Pro Coil High Travel Coil-Over Spring - 3.500" ID 10.0" Length 450 lb/in Spring Rate - Single Pigtail 91629029 The RPM Window SwitchAvailable in 7", 9", 10", 12", 14" and 16" lengths, QA1 offers an assortment of high travel springs with a silver powder coated finish. Made in the USA, these 2" I. D. high travel springs are manufactured from specially designed high tensile, chrome silicon alloy spring wire, which allows them to have fewer coils and a smaller wire diameter. As a result, these springs are lighter and have increased travel due to the larger distance between the coils.