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  • 1000cc Piston Set .010 Oversize 11-2241

Keith Black piston set is .010 oversize with a 8.2 compression ratio for 1972-1985 XL 1000cc models.


VT No: 11-2241
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" 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.
Fits:
XL 1972-1985
UOM: 1 - SET
Country of Origin: Imported

Manufacturer: Keith Black
2018 Catalog pages: 860

2017 Catalog Page: 860


V-Twin Manufacturing Part Number: 11-2241
Manufacturer: Keith Black
Manufacturer Part Number: KB292 .010

Harley-Davidson & Indian OEM Cross Reference Part Numbers:            

Replacement Items:
11-0160 - 883cc Piston Ring Set Standard

Detailed Instructions: CLICK HERE!

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1000cc Piston Set .010 Oversize 11-2241

  • Brand: Keith Black
  • Product Code: 11-2241
  • Availability: In Stock
  • $279.91


Tags: V-Twin, Harley Davidson, Sportster 1952-Up, Engine, Piston, 1000cc Pistons