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- Drag part number: 0910-6090
- Manufacturer Number: KB425C.020
- Manufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloy
- Allows a tighter fit and longer piston and ring life
- Diamond-machined pistons are held to plus or minus one gram weight and less than one-half-thousandth-inch (.0005") tolerances from piston to piston
- Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
- Replacement piston rings sold separately
- KB pistons can be installed tighter than other pistons. This results in less piston rock and better ring seal. Please read instructions included with piston for correct piston clearance
- Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation
- Use lock rings Part #0913-0001 (4-pk)
- Product Name: Piston Kit
- Piston Material: Hypereutectic Alloy
- Bore Size: 3.750"
- Bore - Oversize: +0,020"
- Bore Oversize: +0.020"
- Compression Ratio: 8.8:1
- Piston Head Shape: Flat Top
- Units: Kit
- Riding Style: Street
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