Home / Engine & Performance / Valves & Springs / Piper Top Hat Shim to Suit 6mm Valve Stem – 4.0mm “ARP cabinet with accessory bolts” has been added to your cart. View cart Piper Top Hat Shim to Suit 6mm Valve Stem – 4.0mm€ 12,04 Piper Top Hat Shim to Suit 6mm Valve Stem - 4.0mm quantity Add to cart SKU: SHIM64 Categories: Cylinder Heads, Engine & Performance, Valves & Springs, Valves & Springs Brand: Piper Cams Description Description Thickness: 4.00 Related products Bolts & StudsEngine & Performance ARP GM DURAMAX 6.6L L5P CA625+ HEAD STUD KIT Bolts & StudsEngine & Performance ARP FORD 6.7L Powerstroke diesel CA625+ head stud kit Bolts & StudsEngine & Performance ARP cabinet with SS 12pt accessory bolts Bolts & StudsEngine & Performance ARP cabinet with accessory bolts