883cc Conversion Piston Set .040 Oversize

Retail Price: $209.90
VT No
11-2233
Keith Black dish piston set is .040 oversize with a 9.0:1 compression ratio for 1986-up XL Evolution models.
Keith Black dish piston set is .040 oversize with a 9.0:1 compression ratio for 1986-up XL Evolution 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 .040 over sized, for a 3.498" bore and has a 9:1 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. 2009-UP XL 883 cylinders cannot be overboard to 1200cc. 2009-UP applications will require separate purchase of 1200cc cylinders to be used with piston kit. **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.
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FITS

XL 1986-UP
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UOM1 - SET
ManufacturerKeith Black
OriginImported
2021 Catalog Pages859
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