Home / Engine & Performance / Manley Valve Spring 1.550 DOUBLE Manley Valve Spring 1.550 DOUBLE€ 1.130,26 Manley Valve Spring 1.550 DOUBLE quantity Add to cart SKU: 221452SF-16 Categories: Cylinder Head, Engine & Performance, Valves & Springs Brand: Manley Related products Engine & PerformanceEngine Block JE-Pistons kit R8 5.2L V10 ’09+ 85.00mm 9.0:1 Engine & PerformanceEngine Block JE-Pistons kit Ferrari 330 4.0L 24V 78.00mm 10.0:1 Bolts & StudsEngine & Performance ARP cabinet with black 12pt accessory bolts Bolts & StudsEngine & Performance ARP cabinet with accessory bolts