Home / Valves & Springs / Manley Valve Spring Seat, Spring CUP-OD 1.250 “ARP GM DURAMAX 6.6L L5P CA625+ HEAD STUD KIT” has been added to your cart. View cart Manley Valve Spring Seat, Spring CUP-OD 1.250€ 126,28 Manley Valve Spring Seat, Spring CUP-OD 1.250 quantity Add to cart SKU: 42135-16 Categories: Cylinder Head, Engine & Performance, Valves & Springs Brand: Manley Related products Bolts & StudsEngine & Performance ARP cabinet with SS 12pt accessory bolts Engine & PerformanceEngine Block JE-Pistons kit R8 5.2L V10 ’09+ 84.50mm 9.0:1 Bolts & StudsEngine & Performance Chevy Duramax 6.6L diesel CA625+ custom age HSK Engine & PerformanceEngine Block JE-Pistons kit Ferrari 330 4.0L 24V 77.50mm 10.0:1