KB Performance

KB Performance Super-Duty Big Bore M-Eight Piston Kit, +0.005 Kit - Fits 17 & Newer M-Eight

0910-6178

Regular price $433.95 Save $-433.95
3 in stock
  • Updates stock 107" motor to 124" when using 4.250" big bore kits
  • Valve pockets are designed to accept up to +4mm oversized intake and exhaust valves
  • Type 3 hard-anodized crown offers corrosion resistance for alcohol-added fuels
  • Type 3 hard-anodized top ring groove eliminates micro-welding of ring to the groove and gives a hard-flat surface for ring to rotate on
  • OE-style round wire locks are easily installed
  • Heavy-duty wrist pins with true .9270" diameter to fit rods correctly
  • Line2Line AST skirt coating starts out with a near-zero wall clearance and through the break-in period hones the cylinders to produce the correct oil wedge, keeping the piston square to the cylinder for best ring seal and quiet operation
  • Kit includes 11.4:1 CR pistons, rings, pins and locks

NOTE: Requires the separate purchase of 4.250" bore cylinders - Part #0931-0823

Fitments

2020 Harley-Davidson Softail Low Rider S FXLRS - -
2020 Harley-Davidson Road Glide Limited FLTRK - -
2020 Harley-Davidson Road King EFI FLHR - -
2020 Harley-Davidson CVO Street Glide FLHXSE - -
2020 Harley-Davidson Street Glide EFI FLHX - -
2020 Harley-Davidson Electra Glide Standard EFI FLHTI - -
2020 Harley-Davidson CVO Road Glide Custom FLTRXSE - -
2020 Harley-Davidson Softail Standard FXST - -
2019-2020 Harley-Davidson FXDR 114 - -
2019-2020 Harley-Davidson Electra Glide Police FLHTPI - -
2019 Harley-Davidson Electra Glide Standard EFI FLHTI - -
2018-2020 Harley-Davidson Softail Fat Bob 114 FXFBS - -
2018-2020 Harley-Davidson Softail Street Bob FXBB - -
2018-2020 Harley-Davidson Softail Slim FLSL - -
2018-2020 Harley-Davidson Softail Sport Glide FLSB - -
2018-2020 Harley-Davidson Softail Low Rider FXLR - -
2018-2020 Harley-Davidson Softail Fat Boy 114 FLFBS - -
2018-2020 Harley-Davidson Softail Heritage Classic FLHC - -
2018-2020 Harley-Davidson Softail Breakout 114 FXBRS - -
2018-2020 Harley-Davidson Softail Deluxe FLDE - -
2018-2020 Harley-Davidson Softail Heritage Classic 114 FLHCS - -
2018-2019 Harley-Davidson Softail Fat Boy FLFB - -
2018-2019 Harley-Davidson Softail Breakout FXBR - -
2018-2019 Harley-Davidson Softail Fat Bob FXFB - -
2018-2019 Harley-Davidson CVO Road Glide Custom FLTRXSE - -
2017-2020 Harley-Davidson Road Glide Special FLTRXS - -
2017-2020 Harley-Davidson Road King Special FLHRXS - -
2017-2020 Harley-Davidson CVO Electra Glide Ultra Limited FLHTKSE - -
2017-2020 Harley-Davidson Street Glide Special FLHXS - -
2017-2020 Harley-Davidson Electra Glide Ultra Limited FLHTK - -
2017-2020 Harley-Davidson Road Glide Custom FLTRX - -
2017-2019 Harley-Davidson Electra Glide Ultra Limited Low FLHTKL - -
2017-2019 Harley-Davidson Street Glide EFI FLHX - -
2017-2019 Harley-Davidson Road King EFI FLHR - -
2017-2019 Harley-Davidson Road Glide Ultra FLTRU - -
2017-2019 Harley-Davidson Electra Glide Ultra Classic EFI FLHTCUI - -
2017-2019 Harley-Davidson CVO Street Glide FLHXSE - -
2017-2018 Harley-Davidson Electra Glide Police FLHTPI - -
KB Performance Super-Duty Big Bore M-Eight Piston Kit, +0.005 Kit - Fits 17 & Newer M-Eight
KB Performance Super-Duty Big Bore M-Eight Piston Kit, +0.005 Kit - Fits 17 & Newer M-Eight

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