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...

GT500 & Cobra Jet Exhaust Valve Springs (16)

PAC-1231X springs for GT500 & Cobra Jet exhaust valves OD Large End 1.083 ID Large End 0.720 ID Small End 0.636 Install Height 1.575 Load at Installed Height 120 Spring...

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...

Gen 3 Coyote Valve Springs

These are "drop-in" valve springs that use the stock retainers and required for all Gen 3 engines getting a turbocharger. Description RPM Series Ford Gen 3 5.0L Coyote Ovate Beehive Outside...

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...