LPC Valve Springs 1.540 Dual Spring With Damper. 650 Max Lift April 27, 2024 Comments Off Posted in: valve LPC Valve Springs 1.540 Dual W/ Damper. Style – Dual Spring with Damper. Outside Diameter – 1.540. Coil bind 1.130. Share Tags: damper, dual, lift, spring, springs, valve Comments are closed.