Home / Engine & Performance / Valves & Springs / Piper Top Hat Shim to Suit 6mm Valve Stem – 4.0mm “ARP cabinet with black 12pt 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 cabinet with SS hex metric accessory bolts Bolts & StudsEngine & Performance Chevy Duramax 6.6L diesel CA625+ custom age HSK Bolts & StudsEngine & Performance ARP cabinet with black hex accessory bolts Engine & PerformanceEngine Block JE-Pistons kit R8 5.2L V10 ’09+ 85.00mm 10.5:1