| The all new TSP .700" spring kit featuring PAC Racing 1207X valve springs is the newest offering in valve spring technology with the latest processes and material for maximum spring life. PAC Racing is a leader in valve spring technology, so it was only natural to team up with the best in the valve spring industry for our latest offering in a valve spring kit! PAC's 1207X dual valve spring is part of their RPM Series spring line up, and it has a max valve lift rating of .700"! This is an excellent setup for any customer running aggressive lift with their hydraulic roller camshaft, as well as those running factory GM rocker arms with a low-lash solid roller camshaft! PAC does recommend a quality aftermarket set of lifters with these valve springs. OE lifters are not recommended.
Kit includes the following: Spring Seats, Valve Seals, PAC 1207X Dual Springs, and Titanium Retainers (utilizes GM factory valve stem locks, not included)
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