We have assembled a high tension valve spring kit for you single cam people. EJ251 and EJ253 builds can now use our drop in valve spring kit on builds using aggressive up to 12.7mm lift.
Kit is designed to accommodate most available camshaft regrind profiles without any machine work required to install this kit.
Springs are wound from high grade chrome silicone alloy.
Spring retainers and seat locators are cut from billet chromoly steel and hardened to resist shearing and deforming.
78 lbs seat pressure at stock installed height.