Reproduction crankcases which meet or exceed highest restoration demands. Cast from state-of-the-art materials and machined on CNC equipment for strength and precise fitment. Intended to work with stock or identically constructed engine components. Finished and detailed like the original counterparts so these cases will smoothly blend into your old mill to give it a new life. For ease of installation both case halves are carefully matched and feature pre-installed case bushings, which are line bored and lapped for standard rollers. Cam bushings are already in place and reamed. (for exact measures pls see below).
The selection includes cases with a smooth, uniform glass bead blasted finish and cases with an NOS (new old stock) finish. The latter means the finished cases are not bead-blasted but treated in a traditional process which gives them the appearance of new factory cases that had been sitting on the shelf for 50 years. Perfect for those "patina restorations".All cases feature laser-engraved CB production numbers, which are registered and filed.
- fits Knucklehead 1941-1947
- cam shaft bushing ID: 20.7 mm
- cast aluminum
- replaces OEM 24520-41
James Gasket Kits for Engines: Knucklehead 1936-1947
Truett & Osborn Flywheels
They are made just like the stock counterparts, i.e. the left wheel is thicker than the right one (exc. JD), with the same weight and resulting torque.
An exception are the flywheels for Evolution Big Twins. They come as Torque Monster flywheels, i.e. unlike stock they feature a thicker left wheel for more lower end torque.
All versions are unbalanced and require adaption to the respective lower end components. All T&O flywheels feature pre-installed and replaceable connecting rod thrust washers, providing increased service-life and restorability.
Cannonball Gear Set for OHV 1936-1953
This gear set helps you along. It contains all necessary components, except for the camshaft, to put your gear case back into as new condition. Everything precisely machined and matched to factory specs:
- pinion gear
- breather gear
- circuit breaker drive gear with stud, screw and spacer
- generator idler gear with stud, screw and spacer
- oil pump drive gear (5 t)
- oil pump driven gear (25 t)
- gear shaft bearing seal
- gear shaft spring
Cannonball Knucklehead Tappet Guides
But help is on the way: Cannonball tappet guides are cast and meticulously machined in Germany to OEM specs and fit OEM and Cannonball Knucklehead cases. Just paint or coat them and you're ready to go.
Cannonball Knucklehead Oil Pump
Cannonball Aluminum Cylinder Heads for Knucklehead
Cylinders for Knucklehead
Have any questions?
Our service team will be glad to help out: Mondays - Thursdays 09:00-16:00 CET, Fridays 08:00-16:00 CET, Phone: +49 / 931 250 61 16, eMail: firstname.lastname@example.org