Home / Engine & Performance / Manley Valve Spring 1447 POLISHED “ARP cabinet with black hex accessory bolts” 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 Engine & PerformanceEngine Block JE-Pistons kit Ferrari 330 4.0L 24V 77.50mm 10.0:1 Engine & PerformanceEngine Block JE-Pistons kit Ferrari 330 4.0L 24V 77.50mm 9.0:1 Bolts & StudsEngine & Performance ARP cabinet with SS 12pt metric accessory bolts Bolts & StudsEngine & Performance ARP cabinet with accessory bolts