88" Twin Cam Piston Set .005 for Harley 1999-2006 Big Twins
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APPLICATION:
FXST 1999-2006
FLST 1999-2006
FXD 1999-2006
FLT 1999-2006
DETAILS:
Keith Black piston set is .005 oversize and is for a 3-3/4" bore. Piston set has a compression of 8.8:1 and includes rings.
The Keith Black 390 hypereutectic lloy 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 .005 oversize, for a 3-3/4" bore and has a 9.25:1 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.
UOM: SET