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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
Valve Spring Specs (Standard/High Pressure):
The studs are undercut to more effectively compensate for head gasket compression
Rod Bolts = ARP L19 3/8in / ARP CA 625+
Like most uprated mounts you should expect an increase in NVH making the car less comfortable to drive
GSC Single Valve Spring and Ti Retainer Set FA EJ20X Valve Spring Specs (Standard/High Pressure):KEEP YOUR VALVES UNDER CONTROL GSC's singe cylindrical valve spring kit is their entry level performance valve spring option at an economical cost. The lower open pressure is ideal for milder cam options and or less extreme rpm conditions.. Upgraded valve springs are essential for controlling valve movement with more aggressive cam profiles. A higher spring rate is also necessary under high boost conditions due to the manifold pressures acting against
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