Home / Engine & Performance / Manley Valve Spring 1.311 SINGLE HEMI Drag Pak “ARP cabinet with accessory bolts” has been added to your cart. View cart Manley Valve Spring 1.311 SINGLE HEMI Drag Pak€ 510,97 Manley Valve Spring 1.311 SINGLE HEMI Drag Pak quantity Add to cart SKU: 221431X-16 Categories: Cylinder Head, Engine & Performance, Valves & Springs Brand: Manley Related products Engine & PerformanceEngine Block JE-Pistons kit R8 5.2L V10 ’09+ 84.50mm 9.0:1 Engine & PerformanceEngine Block JE-Pistons Kit Lambo. Gallardo 5.0L FSI V10 ’03-08 82.50mm Engine & PerformanceTurbochargers Haltech Turbosmart GenV eWG50 Progate 50 Bolts & StudsEngine & Performance ARP cabinet with SS hex accessory bolts