QA1 High Travel Coil-Over Spring - 2.500" ID - 12.000" Length - 200 lb/in Spring Rate - Black Powder Coat H76403FXXL GM Gen III/LS1/LS2/LS6 Endure-X Solid

GM Gen III/LS1/LS2/LS6 Endure-X Solid Roller Lifters from COMP Cams are engineered to withstand the demands of aggressive cam lobe designs and increased RPM ranges

checking crankshaft end play

Works with B&M launch control 12 or 16-volt systems

Keihin Jetting

QA1 High Travel Coil-Over Spring - 2.500" ID - 12.000" Length - 200 lb/in Spring Rate - Black Powder Coat H76403FXXL GM Gen III/LS1/LS2/LS6 Endure-X SolidQA1 offers an assortment of high travel springs with a black 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. These lighter springs reduce unsprung weight and