Click to expand Tap to zoom Jim's, Piston Ring End Gap Tool for Univ. by Jim's Save £-90.86 £90.86 | / SKU MCS962025 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart DescriptionJIMS, piston ring end gap toolDetailsFor 4.125" & 4.310" bore pistonsUniv.