SKU:11-0308
Upgrade your vintage Harley-Davidson FL with the Motorshop 74 Inch OV Piston Set in.010 oversize. It features a 3-7/16 inch bore with a 7.5:1 compression ratio, designed for Harley FL engines from 1941 to 1950.
The kit includes Hastings 3-piece rings, two wrist pins, and four circlips, providing a complete rebuild with OEM-style precision.
Pistons incorporate a steel expansion control strut to help manage thermal expansion and maintain proper ring seal across the engine's operating range.
Manufactured in Taiwan, this set emphasizes durability and consistent fabrication standards for long-term restoration projects.
Installation requires proper break-in: run at moderate speeds for at least 500 miles and avoid lugging the engine in low gears to let the new pistons and rings seat correctly. Detailed installation guidance is included.
Accessory items referenced with the kit include Ring-O-Matic Ring Compressor Tool Kit (16-0622), Connecting Rod Clamping Tool (16-0029), and Piston Wrist Pin Lock (60-0167).
Fitment: Harley Davidson FL models from 1941 to 1950.
Country of origin: Taiwan.
Piston set 3-7/16 inch bore.010 oversize with compression ratio of 7.5:1. Set includes Hasting 3 piece rings 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut.Upgrade your vintage Harley Davidson FL engine with the Motorshop 74 inch Overhead Valve Piston Set in.010 oversize. Designed specifically for models from 1941 to 1950, this piston kit offers a reliable solution for restoring and enhancing the performance of classic Harley engines. Crafted with precision in Taiwan, these pistons ensure quality and durability for your restoration project. Proper break-in is essential; run your engine at moderate speeds for at least 500 miles, avoiding excessive running in lower gears to allow the new pistons and rings to seat correctly. Refer to the provided instructions for detailed installation guidance, ensuring optimal performance and longevity of your engine components. This piston kit includes everything needed for a complete overhaul, providing a straightforward upgrade path for vintage Harley Davidson enthusiasts.
The kit features high-quality pistons that match the specifications of the original equipment, offering a perfect fit and reliable operation. Compatibility with a range of Harley Davidson FL models from the early 1940s makes it a versatile choice for collectors and restorers alike. For optimal results, consider pairing this piston set with recommended accessory items such as piston rings, wrist pins, and locking components. These additional parts help ensure a comprehensive rebuild, restoring your motorcycle's power and smooth operation. Proper installation and break-in procedures are crucial for maximizing the lifespan and performance of your new pistons, making this set a valuable investment for maintaining the authenticity and performance of your vintage Harley Davidson. Accessory Items: 16-0622 - Ring-O-Matic Ring Compressor Tool Kit, 16-0029 - Connecting Rod Clamping Tool, 60-0167 - Piston Wrist Pin LockFeatures:
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