Home / Valves & Springs / Manley Spring Retainer STL 1.290 7 DEG +.050 “ARP GM DURAMAX 6.6L L5P CA625+ HEAD STUD KIT” has been added to your cart. View cart Manley Spring Retainer STL 1.290 7 DEG +.050€ 94,31 Manley Spring Retainer STL 1.290 7 DEG +.050 quantity Add to cart SKU: 23621-16 Categories: Cylinder Head, Engine & Performance, Valves & Springs Brand: Manley Related products Bolts & StudsEngine & Performance ARP cabinet with SS 12pt accessory bolts Engine & PerformanceTurbochargers Haltech Turbosmart GenV eWG45 Hypergate 45 Bolts & StudsEngine & Performance ARP cabinet with SS hex accessory bolts Bolts & StudsEngine & Performance ARP cabinet with SS 12pt metric accessory bolts