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KEITH BLACK 7.2:1 PISTON SET, .020 VTWIN 11-2237

KEITH BLACK 7.2:1 PISTON SET, .020 VTWIN 11-2237

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$243.36

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Product Description

Keith Black dome piston set is .020 oversize with a 7.2:1 compression ratio for 1980-1984 80" Shovelhead models. The Keith Black 390 hypereutectic alloy is cast in a permanent steel mold which makes it possible to build a light weight piston that makes more power and uses less fuel and lasts longer. Pistons are .020 over sized for a 3.498" bore and has a 8:1 compression ratio. The low heat transfer of the alloy keeps the skirts cool so piston expansion is minimal. The combination of a low heat transfer piston alloy and high compression ring placement increases power and economy. The high ring placement alone reduces detonation and increases the top ring temperature. **Note:Run engine at moderate speeds for at least 500 miles avoiding excessive running in lower gears in order to properly break-in new pistons and rings.

Fits Models:

FL 1978-1984
FX 1978-1984
FLT 1979-1983
FXR 1982-1983

Vtwin-Manufacturing

  • Vtwin: 11-2237
  • Shipping Weight: 2lbs
  • 2 Units in Stock
  • Manufactured by: Vtwin-Manufacturing

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This product was added to our catalog on Monday 29 September, 2014.