Home / Engine & Performance / Manley Valve Spring 1450 POLISHED “ARP GM DURAMAX 6.6L L5P CA625+ HEAD STUD KIT” has been added to your cart. View cart Manley Valve Spring 1450 POLISHED€ 1.736,47 Manley Valve Spring 1450 POLISHED quantity Add to cart SKU: 221450P-16 Categories: Cylinder Head, Engine & Performance, Valves & Springs Brand: Manley Related products Bolts & StudsEngine & Performance ARP cabinet with black hex accessory bolts Engine & PerformanceTurbochargers Haltech Turbosmart GenV eWG40 Comp Gate 40 Bolts & StudsEngine & Performance ARP cabinet with accessory bolts Bolts & StudsEngine & Performance ARP cabinet with SS hex accessory bolts