PAC 1217X, Gen 1 and 2 Coyote Valve springs

Theses are the highest pressure springs for the Gen 1/2 coyote heads.  Heavy Duty secondary chains are required. Maximum Valve Lift (in.): 0.625 in. Retainers Included: No Outside Diameter of...

PAC Racing 1214X 4.6/5.4 valve springs

These springs work with stock retainers and are great for n/a and most boosted setups.  These will not work on TFS Cylinder heads   SPECIFICATIONS Part#PAC-1214X NamePAC-1214X RPM Series...

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...

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...

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...