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Texas Speed & Performance


Texas Speed .660" Lift Platinum Spring Kit

Racing Use Only, Not Legal for Road Use

Estimated Availability: 1-2 weeks

Texas Speed .660" Lift Platinum Spring Kit

.660" Lift Dual Spring Kit for LS engines using stock rocker arms.


  • Dual polished springs
  • Locks and Titanium Retainers
  • Locators for Stock or Bronze Guides
  • Valve Seals 

Spring Specs:

  • 155 lbs @ 1.780"
  • 380 lbs @ 1.180"
  • 400 lbs @ 1.130
  • Coil bind @ 1.070"

This is a drop in spring kit for all 15 degree LS heads including LS1 LS2 LS3 LS4 LS6 L76 L92 L99 LQ4 LQ9 L33 LSA, etc, this kit will also fit LS7 heads with approximately .045" of spring shim This kit will not fit LS9 engines, please see item SK006 for LS9 heads.

We do not stock this item, it is a drop ship only. Please call for lead times and availability.