BTR LT4 Double Valve Spring Kit (.660″ O.D.) for Corvette Z06/ZR1, Camaro ZL1, CTS-V, and LT4/LT5 Engines

Description

.660″ Lift Dual Spring Kit for Gen V LT4 LT5 engines using stock rocker arms.  Includes dual polished springs, matching LT4 specific titanium retainers, LT4 specific locators for stock guides, locks and seals. 

Spring specs are 155 lbs @ 1.780″, 380 lbs @ 1.180″, 400 lbs @ 1.130, coild bind @ 1.070″ 

This is a drop in spring kit for Gen V LT4 engines, WILL NOT FIT OTHER GEN V ENGINES, SEE SK007

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