BTR .660" Dual Platinum Valve Spring Kit| (Steel Retainers)

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.

Note: THESE ARE FOR STOCK ROCKERS

SK001 springs are designed for use with stock rockers.

We recommend our SP002/SK002 for roller rocker applications.

Note: This kit will not fit LS9 engines, please see item SK006 for LS9 heads.

Features Include:

• .660" Lift BTR Platinum Dual Valve Springs
• BTR Steel Retainers For Platinum and Extreme Springs
• BTR Standard Size Spring Locators; .505" ID, .060" Thick
• BTR LS Valve Seal Kit
• BTR Black Oxide Coated Valve Locks; 1 Radial Groove, 7° Angle, 8mm
• 1.300" Diameter
• 155lbs @1.780"
• 380lbs @1.180"
• 400lbs @1.130"
• Coil Bind @1.070"