BTR .660" Dual Platinum Valve Spring Kit (LT1, L83, L86 Engines)

Brian Tooley Racing makes some of the most powerful camshafts on the market for LS and LT engines. We are proud to announce that we have paired up with BTR to bring our customers some of his most popular camshafts & spring designs.

.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, SEE SK008

Features Include:

• .660" Lift BTR Platinum Dual Valve Springs
• BTR Titanium Retainers For Platinum and Extreme Springs
• BTR Standard Size Spring Locators; .505" ID, .060" Thick
• BTR LT Black Valve Seal Kit
• LS VALVE LOCKS 7 DEGREE BEAD LOCK SET OF 32
• BTR .015" Shims For Stock Guides, Bag of 16
• 1.300" Diameter
• 155lbs @1.780"
• 380lbs @1.180"
• 400lbs @1.130"
• Coil Bind @1.070"