Home / Engine & Performance / PAC X Series Tool Series Spring Seats for “R” Series Valve S PAC X Series Tool Series Spring Seats for “R” Series Valve S€ 501,77 PAC X Series Tool Series Spring Seats for "R" Series Valve S quantity Add to cart SKU: PAC-S154X-16 Categories: Engine & Performance, Valves & Springs Brand: PAC Related products Engine & PerformanceTurbochargers Haltech Turbosmart GenV eWG60 Powergate 60 Engine & PerformanceEngine Block JE-Pistons kit Ferrari 330 4.0L 24V 77.50mm 9.0:1 Engine & PerformanceEngine Block JE-Pistons kit Ferrari 330 4.0L 24V 77.50mm 10.0:1 Bolts & StudsEngine & Performance ARP FORD 6.7L Powerstroke diesel CA625+ head stud kit