03-10 6.0/6.4L CNC Fab Stage 1 Ovate Valve Spring Kit - 421077

CNC Fabrication™ 2003-2010 Stage 1 Ovate Valve Spring Kit MODEL/YEAR(S): 2003-2010 ENGINE SIZE: 6.0/6.4L Rev up your engine's performance with the CNC Fabrication™ 2003-2010 Stage 1 Ovate valve spring kit! Tailored for higher-performance 6.0L or 6.4L Ford Powerstroke engines with higher boost. This premium valve spring kit ensures unmatched reliability and efficiency. Each kit comes complete set of 32 polished springs for the ultimate performance upgrade. Transform your ride today—unlock the power within! **Typically 6.0/6.4 valve springs do NOT need any shim adjustments. If you do, do NOT shim any more than .015". Otherwise your valve installed height is probably out of spec.** Install Height: 1.830" Seat Load: 100lbs Spring Open Height: 1.265 Spring Open Load: 280lbs Recommended Max Valve Lift: 0.625” Spring Rate: 318LBS Coil Bind: 1.195" Made In The USA