Keith Black 80 Inch FLH-FX Piston Set.020 Oversize

Upgrade your Harley Davidson with the Keith Black KB288.020 piston set, designed for 80 inch Shovelhead engines from 1980 to 1984. These dome pistons are crafted from a hypereutectic alloy and cast in a permanent steel mold to deliver precise tolerances and lasting durability.

• Oversize:.020 inch for a 3.498 inch bore
• Compression Ratio: 8:1
• Material: Hypereutectic alloy
• Casting Method: Permanent steel mold
• Heat Management: Low heat transfer alloy keeps skirts cooler and minimizes expansion
• Ring Placement: High ring placement improves combustion efficiency and reduces detonation
• Model Compatibility: Fits Harley Davidson FL and FX series from 1978–1984 (including FLT and FXR)
• Part Number: KB288.020

For the best results, pair this piston set with piston ring sets and ring compressor tools during installation. A proper break-in is essential; run the engine at moderate speeds for at least 500 miles to ensure proper seating of pistons and rings. For installation details, refer to the official guide available online. This KB288.020 piston set is a targeted upgrade for power, efficiency, and longevity in classic Harley builds.

Keith Black dome piston set is.020 oversize with a 7.2:1 compression ratio for 1980-1984 80 inch Shovelhead models.

Upgrade your Harley Davidson with the Keith Black 80 inch FLH-FX Piston Set, part number KB288.020. Crafted from hypereutectic alloy, these pistons are cast in a permanent steel mold, ensuring durability and precision. The design features.020 inch oversize pistons tailored for a 3.498-inch bore, with an 8:1 compression ratio that enhances power and fuel efficiency. The low heat transfer alloy helps keep the piston skirts cool, reducing expansion and wear, which contributes to longer engine life and consistent performance. The high ring placement not only reduces detonation but also raises the top ring temperature, optimizing combustion efficiency and engine responsiveness. These pistons are suitable for a range of Harley Davidson models from 1978 to 1984, including FL and FX series, ensuring a perfect fit for your restoration or upgrade project. Proper break-in is essential; run the engine at moderate speeds for at least 500 miles, avoiding excessive low gear operation to ensure optimal piston and ring seating. For detailed installation instructions, refer to the official guide available online. This piston set is a reliable choice for those seeking to improve their engine's power, efficiency, and longevity. Pair it with recommended accessories like piston ring sets and ring compressor tools for best results and a seamless installation experience.

Features:

• Material: Hypereutectic alloy for durability and heat resistance

• Casting: Permanent steel mold for precision and strength

• Oversize:.020 inch for a 3.498 inch bore compatibility

• Compression Ratio: 8:1 for optimal power and fuel efficiency

• Heat Transfer: Low heat transfer alloy keeps skirts cool and minimizes expansion

• High Ring Placement: Improves combustion efficiency and reduces detonation

• Model Compatibility: Fits 1978-1984 Harley Davidson FL and FX series

Fitment:
Harley Davidson FL 1978
Harley Davidson FL 1979
Harley Davidson FL 1980
Harley Davidson FL 1981
Harley Davidson FL 1982
Harley Davidson FL 1983
Harley Davidson FL 1984
Harley Davidson FLT 1979
Harley Davidson FLT 1980
Harley Davidson FLT 1981
Harley Davidson FLT 1982
Harley Davidson FLT 1983
Harley Davidson FX 1978
Harley Davidson FX 1979
Harley Davidson FX 1980
Harley Davidson FX 1981
Harley Davidson FX 1982
Harley Davidson FX 1983
Harley Davidson FX 1984
Harley Davidson FXR 1982
Harley Davidson FXR 1983