KB Performance Pistons KB305 .010 Over 9.6:1 80" Evolution Harley Davidson Evo
ITEM SPECIFICS
- Brand: KB Performance / United Engine & Machine (UEM)
- Manufacturer Part Number: KB305.010
- Type: Piston Kit
- Bore Size: 3.508 in / +.010 in Oversize
- Compression Ratio: 9.6:1
- Material: Hypereutectic Aluminum Alloy
- Engine Type: 80 ci / 1340cc Evolution Big Twin
- Fitment Years: 1984–1999
- Country/Region of Manufacture: United States
- Included Items: Front & Rear Pistons, Hastings Wrist Pins, Lockrings, Hastings Piston Rings Set
Premium New-Old-Stock KB Performance Hypereutectic Piston Kit with Hastings Rings
Enhance the power and reliability of your 80" Evolution engine with this high-quality KB Performance (by United Engine & Machine Co.) piston kit. This kit features high-silicon 390 hypereutectic aluminum alloy construction, providing exceptional thermal efficiency, tight operating clearances, and superior resistance to piston expansion.
Key Highlights:
- Precise Sizing: +.010" Oversize (3.508" target bore diameter).
- Performance Boost: Configured for a 9.6:1 compression ratio utilizing standard cylinder heads.
- Directional Fitment: Clearly stamped "F" (Front) and "R" (Rear) crowns with clear "INTAKE" valve relief designations.
- Complete Top-End Set: Includes premium matching Hastings moly piston rings, heavy-duty wrist pins, spiral lockrings, and original factory installation specification instructions.
selling as pictured 083126
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