SKU:11-0221
This Motorshop replica overhead‑valve piston set features a 3-7/16 inch bore, an 8.5:1 compression ratio, and is oversize.050 for increased seating of the piston rings and improved power delivery on classic engines.
Crafted in Taiwan for precision fit and durable performance, this kit is designed specifically for vintage Harley models. It is intended to upgrade or restore engines to original‑spec behavior while delivering reliable power and longevity on Harley‑Davidson FL models from 1941 to 1950.
Proper installation and break‑in are essential: run the engine at moderate speeds for at least 500 miles and avoid extended low‑gear operation to ensure the pistons and rings seat correctly. Detailed break‑in instructions are provided with the kit.
The Motorshop piston set is built to match original parts specifications, promoting seamless compatibility and consistent compression and power output suitable for rebuilding or replacing worn pistons in classic FL engines. For easier assembly, optional accessories recommended by experts include a Ring‑O‑Matic Ring Compressor Tool Kit and a Connecting Rod Clamping Tool, among related items.
Fitment confirms compatibility with Harley Davidson FL models from 1941 to 1950, offering a targeted restoration solution for vintage engines while maintaining authentic performance characteristics.
Replica 3-7/16 inch bore piston set has a 8.5:1 compression ratio and is oversize.050. Piston set includes Hasting rings 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut cast.Upgrade your vintage Harley Davidson FL with the Motorshop Replica 74 Inch Overhead Valve Piston Set in.050 oversize. Crafted in Taiwan, this piston kit is designed for precise fitment and reliable performance on classic Harley models from 1941 to 1950. Proper installation and break-in are essential; run your engine at moderate speeds for at least 500 miles, avoiding excessive running in lower gears to ensure the new pistons and rings seat correctly. For detailed instructions, refer to the provided link. Constructed with quality materials, this piston set offers a durable solution for restoring or maintaining your vintage Harley.
The kit includes high-quality pistons specifically engineered to match the specifications of the original parts, ensuring seamless compatibility and performance. Each component is designed with precision to deliver optimal compression and power, restoring your engine's efficiency. This set is ideal for rebuilding or replacing worn pistons in classic Harley Davidson FL models, providing a cost-effective way to maintain authenticity while enhancing engine longevity.
To assist with installation, accessory items such as a Ring-O-Matic Ring Compressor Tool Kit, Connecting Rod Clamping Tool, and additional components are recommended. These tools facilitate proper assembly and ensure a secure fit, helping you complete your rebuild with confidence. The pistons are compatible with the original Harley Davidson FL models from 1941 through 1950, ensuring a perfect fit for vintage restoration projects. Trust the Motorshop brand for quality parts designed to keep your classic Harley running smoothly for years to come.
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