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Kb Performance

KB Performance #KB596LCA.005 - Piston Kit - 4.250" +0.005" - 11.7:1 CR - 128" Big Bore - 114"/117" M8

Part #: 0910-6406
From $379.91
KB Performance #KB596LCA.005 - Piston Kit - 4.250" +0.005" - 11.7:1 CR - 128" Big Bore - 114"/117" M8—
$379.91

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Description

Piston Kit - 4.250" +0.005" - 11.7:1 CR - 128" Big Bore - 114"/117" M8

Features

  • Valve pockets are designed to accept up to +4.00 mm 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 0.9270” 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 pistons, rings, pins and locks
  • Requires 4.250" bore cylinder sold separately.

Specs

UnitsKit
Compression Ratio11.7:1
Riding StyleStreet
Displacement128"
Stroke Length4.500"
ModelSuper Duty
Bore - Oversize+0,005"
Bore Size4.250"
Piston Material4032 Aluminum Alloy
TypeBig Bore
Piston Head ShapeDomed
Product NamePiston Kit
StyleForged
KB Performance #KB596LCA.005 - Piston Kit - 4.250" +0.005" - 11.7:1 CR - 128" Big Bore - 114"/117" M8 | Direct Cycle Parts