Home / Engine & Performance / Manley Valve Spring 1447 POLISHED “Chevy Duramax 6.6L diesel CA625+ custom age HSK” 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 ARP cabinet with accessory bolts Engine & PerformanceEngine Block JE-Pistons kit Ferrari 330 4.0L 24V 77.50mm 9.0:1 Bolts & StudsEngine & Performance Chevy Duramax 6.6L diesel CA625+ custom age HSK Bolts & StudsEngine & Performance ARP FORD 6.7L Powerstroke diesel CA625+ head stud kit