Dynosty BTR LS .660″ Dual Valve Springs Kit

Upgrade your LS engine with the Dynosty BTR Platinum Dual Valve Springs Kit, engineered by Brian Tooley Racing for peak performance. Whether you're building a daily driver, a high-revving N/A stroker, or a turbocharged 1000 hp monster, this kit ensures your valves stay precisely aligned with your camshaft's profile. Designed for seamless drop-in installation, it pairs perfectly with stock rocker arms for hassle-free upgrades.

This kit includes dual polished springs, matching retainers, locators for stock guides, locks, and seals. Compatible with all 15° LS heads (LS1, LS2, LS3, LS6, L76, L92, L99, LQ4, LQ9, L33, LSA), it’s the ideal choice for maximizing durability and power across a wide range of applications. Trust Dynosty and BTR for unmatched reliability and performance.