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  • 80
Keith Black dome piston set is .030 oversize with a 7.2:1 compression ratio for 1980-1984 80" Shovelhead models.

VT No: 11-2238
Keith Black dome piston set is .030 oversize with a 7.2:1 compression ratio for 1980-1984 80" Shovelhead 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 .030 over sized, for a 3.498" bore and has a 8:1 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:
FL 1978-1984
FX 1978-1984
FLT 1979-1983
FXR 1982-1983
UOM: 2 - SET
Country of Origin: Imported

Unit Of Measure: 2 - SET

Size: .030
Manufacturer: Keith Black
2016 Catalog pages: 519

Replacement Items:
11-1366 - 80" Shovelhead Piston Ring Set .030

Instructions/Diagrams: Click here to view additional information

Manufacturer: Keith Black
Part Number: KB288 .030

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80" FLH-FX Piston Set .030 Oversize 11-2238

  • Brand: Keith Black
  • Product Code: 11-2238
  • Availability: Out Of Stock
  • $215.61


Tags: V-Twin, Harley Davidson, Classic Pre-1984, Engine, Piston, 80" Pistons