4.6/5.4 3V Valve Springs (24)

Description Ford 4.6L 4V .500 lift Ovate Beehive Valve Spring OD Large End1.025 ID Large End0.662 ID Small End0.567 Install Height1.670 Load at Installed Height105 Spring Open Height1.120 Spring Open Load270 Recommended Valve Lift0...

GT500 & Cobra Jet Intake Valve Springs (16)

PAC-1230X springs for GT500 & Cobra Jet intake valves   OD Large End 1.083 ID Large End 0.720 ID Small End 0.636 Install Height 1.715 Load at Installed Height 120 Spring Open Height 1.165 Spring Open...

Pac Racing 1234X drop-in spring for Gen1 and 2 Coyotes

These are drop-in style springs for Gen 1 and 2 Coyotes. Required for turbo engines to prevent the exhaust valves from hanging open under boost.   SPECIFICATIONS Part#: PAC-1234X Name: PAC-1234X RPM Series Ford 5.0L Coyote Drop-In Ovate...

PAC Racing 1281X Gen 3 Coyote valve springs

These springs use the stock retainers which are sufficient for most applications from mild street to high HP/RPM race cars.  These are required when adding a turbo to stock engines to prevent the exhaust valves from hanging open and losing valve...