Description
KB Performance Piston KB, M8 114″/117″ to 124″ big bore conversion piston kit. STD
17-24 114″117″ M8 engines
Forged Super Duty series for the Milwaukee Eight 114″ and 117″ engine for a 128″ big bore conversion. Designed to work with both oil/water cooled engines and up to 3mm larger valves. With hard anodized crown and top ring groove to reflect heat and prevent ring to groove ‘micro-welding’. The Line2Line abradable self-lubricating powder coating technique allows zero tolerance installation, final tolerance will be 0.003″. The piston creates its own perfect tolerance during run-in, the coating automatically gives the tightest possible & perfect piston to cylinder fit for no piston rock and best possible ring seal. Note: Fits 114/117″ M8 engines with stock 4.5″ stroke. Aftermarket 4.25″ bore cylinders are required. For up to 3mm larger valves. – Compression ratio: 11.7:1 – Engine displacement: 128″ – Bore: 4.25″ – Stroke: 4.5″ – Ring Pack: 1.5mm, 1.5mm, 3.0mm – Top land: 0.23 – Pin Number: .927×2.250x.180c-SCR415H – Pin type: Floating – Pin Diameter: 0.927″ – Lock: BR8894-1 – Compression height: 1.083″ – Crown type: Dome – Crown (cc): -2.5 – Alloy: Forged 4032 alloy
