Home / Engine & Performance / Manley Valve Spring 1447 POLISHED “Haltech Turbosmart GenV eWG45 Hypergate 45” has been added to your cart. View cart Manley Valve Spring 1447 POLISHED€ 1.270,56 Manley Valve Spring 1447 POLISHED quantity Add to cart SKU: 221447P-16 Categories: Cylinder Head, Engine & Performance, Valves & Springs Brand: Manley Related products Bolts & StudsEngine & Performance Chevy Duramax 6.6L diesel CA625+ custom age HSK Bolts & StudsEngine & Performance ARP cabinet with SS 12pt metric accessory bolts Bolts & StudsEngine & Performance ARP cabinet with black hex accessory bolts Bolts & StudsEngine & Performance ARP cabinet with accessory bolts