SKU:11-2205
Keith Black 390 hypereutectic pistons,.040 oversize for a 3.438" bore, deliver a 9.0:1 compression ratio for vintage Harley-Davidson engines.
Designed specifically for Harley-Davidson FL models from 1941 to 1950, this piston set is manufactured in Mexico to meet strict fitment and durability standards for classic powerplants.
The kit includes pistons, rings, and the necessary components for a comprehensive rebuild, ensuring you have everything needed to restore power and reliability in a single package.
Product details: UOM: SET; Country of Origin: Mexico; Part number KB263.040.
Installation and break-in: follow proper procedures; run the engine at moderate speeds for at least 500 miles and avoid excessive idling or low-gear operation to promote longevity. Detailed installation steps are included with the kit.
Upgrade your Harley Davidson FL motorcycle with the Keith Black 11-2205 74 Inch FLH-FX Piston Set. Designed specifically for models from 1941 to 1950, this set features high-quality pistons that ensure reliable performance and durability. Crafted in Mexico, these pistons are engineered to meet strict standards and provide optimal fitment for vintage Harley Davidson engines. The set includes pistons, rings, and necessary components for a comprehensive rebuild, making it an essential choice for restoring classic motorcycles or enhancing engine performance. Proper installation and break-in procedures are critical for longevity; run the engine at moderate speeds for at least 500 miles, avoiding excessive idling or low gear operation. For detailed installation steps, refer to the provided instructions at this link. Compatibility with your Harley Davidson FL ensures a perfect fit, restoring your motorcycle’s power and efficiency with reliable precision. Whether rebuilding or upgrading, this piston set offers an excellent balance of performance and durability for vintage Harley engines.
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