Motorshop Replica 74 Inch Knucklehead Cylinder Kit Black For Harley FL 1941-1947

Authentic 74-inch Knucklehead cylinder kit in black cast iron, pre-fitted with standard cast 8.5:1 pistons and a genuine Hasting ring set to deliver period-accurate compression and dependable performance.

Left-side MoCasCo original casting marks and a five-fin profile reproduce the vintage appearance of the 1940s Knucklehead cylinders. Castings are replicated from the 1974 Knucklehead design to match original specifications.

Designed for Harley-Davidson FL models from 1941 through 1947, this kit is made in Taiwan and includes everything needed for a comprehensive rebuild or upgrade. The piston-to-wall clearance is approximately 0.0025 to 0.003 inches to ensure proper fitment.

• Finish: black
• Material: cast iron
• Piston-to-wall clearance: 0.0025 to 0.003 inches
• Pre-fitted with standard cast 8.5:1 pistons
• Pre-fitted with genuine Hasting ring set
• Five fins; authentic MoCasCo casting marks on the left side
• Fits Harley Davidson FL 1941–1947
• Made in Taiwan
• Includes everything needed for a comprehensive rebuild or upgrade

2022 New Production Replica 74 inch Knucklehead cylinder set with 5 fins and black finish features cast iron construction with original markings. Pre-fitted with standard cast 8.5:1 pistons and a genuine Hasting ring set.

The Motorshop Replica 74 Inch Knucklehead Cylinder Kit offers an authentic vintage appearance with original casting marks from MoCasCo on the left side, replicating the cylinders used in post-production 1974 Knucklehead engines. Crafted to match the original specifications, these cast iron cylinders feature a piston-to-wall clearance of approximately 0.0025 to 0.003 inches, ensuring proper fitment and performance. The cylinder castings are reproduced after the classic 1940s Harley Davidson models, making them an excellent choice for restoration or custom builds aiming for period accuracy.
Designed specifically for Harley Davidson FL models from 1941 to 1947, this kit includes everything needed for a comprehensive rebuild or upgrade. The castings are made in Taiwan, maintaining quality standards suitable for motorcycle enthusiasts and professional mechanics alike. The kit's features include detailed casting marks, precise dimensions, and durability aligned with original components, ensuring reliable performance and longevity for vintage Harley engines.
Compatible with suggested accessory items such as the 74-inch Knucklehead Cylinder Set in black and piston ring sets, this kit provides a complete solution for restoring or enhancing vintage Harley Davidson engines. Whether you're rebuilding a classic bike or creating a custom vintage motorcycle, the Motorshop Replica 74 Inch Knucklehead Cylinder Kit delivers authentic style and dependable performance.

Features:

• Original casting marks from MoCasCo on the left side for authenticity

• Replicated cast iron cylinders based on 1974 Knucklehead design

• Piston-to-wall clearance of.0025 to.003 inches for proper fit

• Fits Harley Davidson FL models from 1941 through 1947

• Made in Taiwan with quality craftsmanship

Fitment:
Harley Davidson FL 1941
Harley Davidson FL 1942
Harley Davidson FL 1943
Harley Davidson FL 1944
Harley Davidson FL 1945
Harley Davidson FL 1946
Harley Davidson FL 1947