BTR Brian Tooley Racing Replacement LS .660" Dual Springs - Springs only, NOT full kit

Upgrade your LS engine's valvetrain with the Brian Tooley Racing (BTR) Replacement LS .660" Dual Valve Springs. This set of 16 springs is designed for high-performance applications, offering superior valve control for high-lift camshafts. With an installed pressure of 155 lbs at 1.780" and open pressures up to 400 lbs at 1.130", these springs ensure reliable performance under demanding conditions. Note: This listing is for springs only; retainers and seats are not included and must be sourced separately.

• High-Lift Camshaft Compatibility: Engineered to accommodate camshafts with lifts up to .660", providing the necessary spring pressure to maintain valve control at high RPMs.
• Durable Construction: Manufactured from high-quality materials to withstand the rigors of high-performance engines, ensuring longevity and consistent performance.
• Precise Spring Rates: Offers 155 lbs of seat pressure at 1.780" installed height and up to 400 lbs of open pressure at 1.130", with a coil bind at 1.070", ensuring optimal valve operation.
• Set of 16 Springs: Provides a complete set for V8 LS engines, allowing for a full valvetrain upgrade or replacement.
• Springs Only Configuration: Ideal for those who already have compatible retainers and seats or wish to customize their valvetrain setup.