Motorshop 3-5/16in Piston Kit.080 Oversize for Harley EL

3-5/16 inch bore with.080 oversize, this Motorshop piston kit is engineered to restore performance and reliability to Harley-Davidson EL engines from 1936 to 1940. The kit is supplied as a complete set (UOM: KIT) and includes all components needed for a comprehensive piston replacement.

What’s inside: Hastings 3 piece ring set, 2 wrist pins, and 4 circlips, plus pistons that feature a steel expansion control strut case for added durability. The assembly is crafted to fit Harley EL models from 1936–1940, ensuring proper clearance and reliable operation during classic-era rebuilds.

Quality and compatibility: Manufactured in Taiwan to meet established quality standards, this piston kit is designed for engine rebuilds and performance upgrades on vintage EL bikes. It’s a versatile choice for restoration projects or targeted power gains in classic Harley workhorses.

Installation and break-in: Detailed installation instructions are available at this link, with recommended break-in procedures to achieve optimal seating of pistons and rings. Run the engine at moderate speeds for at least 500 miles and avoid excessive running in lower gears during break-in.

• Fits Harley-Davidson EL models: 1936, 1937, 1938, 1939, 1940
• 3-5/16 in bore,.080 oversize
• Includes Hastings 3 piece ring set, 2 wrist pins, and 4 circlips
• Pistons feature a steel expansion control strut case
• Manufactured in Taiwan; complete piston kit (UOM: KIT)

Additional recommended items for a full rebuild include piston wrist pin locks (SKU 12-0910), a ring compressor tool kit (SKU 16-0622), a connecting rod clamping tool (SKU 16-0029), and a set of accessory items to complete your rebuild.

Piston set with 3-5/16 inch bore is.080 oversize. Set includes Hasting 3 piece ring set 2 wrist pins and 4 circlips. Pistons have a steel expansion control strut case.

The Motorshop 3-5/16 inch Piston Kit in.080 oversize is designed to restore performance and reliability to classic Harley Davidson EL models from 1936 to 1940. Crafted with precision and quality, this piston kit is an essential component for engine rebuilds and performance upgrades. It ensures proper fitment and durability, making it suitable for enthusiasts and professional mechanics alike. The kit includes all necessary components for a comprehensive piston replacement, simplifying the installation process and ensuring optimal engine operation. Proper break-in procedures are crucial, so it is recommended to run the engine at moderate speeds for at least 500 miles, avoiding excessive running in lower gears to allow the pistons and rings to seat properly. Detailed installation instructions are available at this link, providing guidance for a smooth assembly.
Manufactured in Taiwan, this piston kit is built to meet high standards of quality and durability, ensuring long-lasting performance under various riding conditions. The kit is supplied as a complete set (UOM: KIT) and is compatible with a range of vintage Harley Davidson models, making it a versatile choice for restoration projects or performance enhancements.
Additional recommended items include piston wrist pin locks (SKU 12-0910), a ring compressor tool kit (SKU 16-0622), a connecting rod clamping tool (SKU 16-0029), and a set of accessory items to complete your rebuild. Proper installation and break-in are vital to achieving the best results and longevity from your engine rebuilds.

Features:

• Fits Harley Davidson EL models from 1936 to 1940

• Includes complete piston kit in.080 oversize

• Designed for engine rebuilds and performance upgrades

• Manufactured in Taiwan with high-quality standards

• Proper break-in recommended for optimal performance

Fitment:
Harley Davidson EL 1936
Harley Davidson EL 1937
Harley Davidson EL 1938
Harley Davidson EL 1939
Harley Davidson EL 1940