TSP .660" POLISHED Dual Spring Kit w/ PAC Valve Springs, Titanium Retainers, & PRC Integrated Seat/Seal UNIFUEL Patent-Pending Precision Race Components Integrated

Patent-Pending Precision Race Components Integrated Seat/Seal for Dual Valve Springs

3L trucks that want to keep their factory torque converter

Fuel Injector Clinic's high performance fuel injector sets are precisely flow matched to within 1%

7L HEMI: 2005 to 2019

TSP .660" POLISHED Dual Spring Kit w/ PAC Valve Springs, Titanium Retainers, & PRC Integrated Seat/Seal UNIFUEL Patent-Pending Precision Race Components IntegratedTexas Speed & Performance is proud to offer the latest version of the best dual valve spring kit on the market! This kit now includes our patent pending Precision Race Components integrated seat and seal. You no longer have to worry about special installation tools for your valve seals, tearing a valve seal upon installation, or valve seals popping off! Our new integrated seat and seal will work with factory size valve guides and CANNOT be used on any