BTR 660 Platinum LT1 valve spring kit with Titanium retainers

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  • Regular price $309.95


.660" Lift Dual Spring Kit for Gen V engines using stock rocker arms.  Includes dual polished springs, matching Gen V specific titanium retainers, your choice of locators for stock or bronze 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 LT1, L83 and L86 engines, 

WILL NOT FIT LT4