1000cc Piston Set .010 Oversize
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$280.76
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Keith Black piston set is .010 oversize with a 8.2 compression ratio for 1972-1985 XL 1000cc 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 .010 oversize for a 3.188 inch 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. **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.
Product Details
- Manufacturer: Keith Black
- V-Twin Part Number: 11-2241
- Manufacturer Part Number: KB292.010
- Category: Engine
- Product Group: Piston
- Product Type: 1000cc Pistons
- Country of Origin: USA
Fitment
- 1972-1985 XL
Please verify fitment before ordering.
