KB, M8 114/117 to 120" big bore conv. piston set. +.010"
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Description
Forged Super Duty series for the Milwaukee Eight engine. 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, cylinder must be bored to 4.125" big bore size. Case boring is not required, OEM weight so rebalancing is not required and works with stock 4.500" stroke.
10.9:1 CR. (with 88.6cc head volume).
Piston weight: OEM.
Piston pin weight 115gr., offset: 0.025".
Piston: +1.9cc/Flat top.
Compression height: 1.083".
Ring pack: 1.2mm 1.2mm 3.0mm.
Bore 4 1/8" / Stroke stock 4.500".
