Proflow GM LS Valve Spring, Beehive Style, 1.310 in. OD, 1.850 in. Installed Height, 372 lbs./in. Rate, Each Open 1.100" Coil Bind, Kit

Proflow's High Performance valve springs for the LS Engine. When you upgrade the cam, you need to upgrade valve springs to match. Micro-engineered surface finish for maximum durability, Multilayer fatigue enhancement, eliminating potential surface defects and prolonging spring life, Proprietary heat

Part number: PFE-VS26918