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Shop67 Harley Torque Plates
Twin Cam & Milwaukee-Eight Torque Plate Set
The Shop67 Twin Cam & Milwaukee-Eight Torque Plate Set is a professional-grade honing tool designed to accurately simulate cylinder distortion under real head clamping loads. Machined from 2” thick 6061-T6511 aluminum, this system provides consistent, repeatable results for precision cylinder finishing.
This set is engineered to cover both Twin Cam and Milwaukee-Eight engines in one complete package, making it an ideal solution for professional engine builders looking to reduce tooling redundancy without sacrificing accuracy.
Each set includes base plates and dedicated top plates, fully threaded and supplied with correct hardware, allowing proper torque application during the honing process. Designed to accept large-bore M8 applications (4.320”) down to 88” Twin Cam cylinders, this setup is suitable for stock and high-performance builds alike.
All components are CNC-machined, deburred, cleaned, and ready for immediate use.
Features:
Fits Twin Cam & Milwaukee-Eight engines
2.5” thick 6061-T6511 aluminum construction
Includes base plates and top plates
Correct hardware included
Designed for accurate torque-plate honing
Accepts 135” big-bore M8 and Twin Cam cylinders
Built for professional engine shops
For 4.5” big bore m8 application please contact directly shop67part@gmail.com
Evo Big Twin & Sportster Torque Plate Set
The Shop67 Evo Big Twin & Sportster Torque Plate Set is a precision-machined torque plate system designed to ensure proper cylinder geometry during honing by accurately replicating head bolt clamping forces.
Machined from 2.0” thick 6061-T6511 aluminum, this set is built to deliver stable, repeatable results for both Evolution Big Twin and Sportster engines. Ideal for performance rebuilds, big-bore applications, and professional cylinder prep.
This complete set includes base plates and matching top plates, fully threaded where required and supplied with correct hardware to allow proper torque values during honing. The design ensures consistent bore shape under load, helping improve ring seal, piston life, and overall engine performance.
All plates are CNC-machined, deburred, cleaned, and ready to use right out of the box.
Features:
Fits Evo Big Twin & Sportster engines
2.0” thick 6061-T6511 aluminum construction
Includes base plates and top plates
Hardware included
Designed for accurate torque-plate honing
Suitable for stock and big-bore applications
Built for professional engine builders
Twin Cam & Milwaukee-Eight Torque Plate Set
The Shop67 Twin Cam & Milwaukee-Eight Torque Plate Set is a professional-grade honing tool designed to accurately simulate cylinder distortion under real head clamping loads. Machined from 2” thick 6061-T6511 aluminum, this system provides consistent, repeatable results for precision cylinder finishing.
This set is engineered to cover both Twin Cam and Milwaukee-Eight engines in one complete package, making it an ideal solution for professional engine builders looking to reduce tooling redundancy without sacrificing accuracy.
Each set includes base plates and dedicated top plates, fully threaded and supplied with correct hardware, allowing proper torque application during the honing process. Designed to accept large-bore M8 applications (4.320”) down to 88” Twin Cam cylinders, this setup is suitable for stock and high-performance builds alike.
All components are CNC-machined, deburred, cleaned, and ready for immediate use.
Features:
Fits Twin Cam & Milwaukee-Eight engines
2.5” thick 6061-T6511 aluminum construction
Includes base plates and top plates
Correct hardware included
Designed for accurate torque-plate honing
Accepts 135” big-bore M8 and Twin Cam cylinders
Built for professional engine shops
For 4.5” big bore m8 application please contact directly shop67part@gmail.com
Evo Big Twin & Sportster Torque Plate Set
The Shop67 Evo Big Twin & Sportster Torque Plate Set is a precision-machined torque plate system designed to ensure proper cylinder geometry during honing by accurately replicating head bolt clamping forces.
Machined from 2.0” thick 6061-T6511 aluminum, this set is built to deliver stable, repeatable results for both Evolution Big Twin and Sportster engines. Ideal for performance rebuilds, big-bore applications, and professional cylinder prep.
This complete set includes base plates and matching top plates, fully threaded where required and supplied with correct hardware to allow proper torque values during honing. The design ensures consistent bore shape under load, helping improve ring seal, piston life, and overall engine performance.
All plates are CNC-machined, deburred, cleaned, and ready to use right out of the box.
Features:
Fits Evo Big Twin & Sportster engines
2.0” thick 6061-T6511 aluminum construction
Includes base plates and top plates
Hardware included
Designed for accurate torque-plate honing
Suitable for stock and big-bore applications
Built for professional engine builders