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VT#: 11-2259

Keith Black piston set .010 oversize and is for a 3.498" bore. Piston set has a compression ratio of 9.6:1 and includes rings. 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 .010 oversize, for a 3.498" bore and has a 9.5:1 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.

FXR Super Glide® 1984-1994
FXD Dyna Glide® 1991-1998
FLST Heritage Softail® 1986-1998
FLT Tour Glide® 1984-1998
FXST Softail® 1984-1998

80" Evolution Piston Kit .010

11-2259

VT#: 11-2259Keith Black piston set .010 oversize and is for a 3.498" bore. Piston set has a compression ratio of 9.6:1 and includes rings. 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 ...
  • Shipping Weight: 2.75lbs
  • Manufactured by: S&S Cycle
In Stock
$226.00

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This product was added to our catalog on Tuesday 07 January, 2014.