MMR/Manley GT500 / Ford GT Cylinder Valve Spring kit
This kit contains the Springs and Titanium retainers for the Shelby GT500 & Ford GT Supercar Cylinder heads. Standard 4V springs from Comp cams and Manley will not work with these heads due to the separate installed heights on the intake and exhaust. This kit has been properly engineered to maintain the correct installed heights and work with stock and ALL aftermarket cams. The increased seat pressure that this kit produces is also great for High boost applications.
16 Intake High Performance Valve Springs
16 Exhaust High Performance Valve Springs
16 Intake Titanium Retainers
16 Exhaust Titanium Retainers