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Cannonball Panhead Crankcases

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.

... more
Crankcases by Cannonball; fits Panhead 1948-1952; cam shaft bushing ID: 20.7 mm; cast aluminum; replaces OEM 24520-48; Germany
W&W# Picture net price* Available from warehouse Germany?
63-407 Cannonball Panhead Crankcases bead blasted $2,099.91 each
in stock
63-417 Cannonball Panhead Crankcases "NOS-finish" $2,170.10 each
in stock
* United States of America: Tax free shipping. Please check your local import fees.

Spare parts:

  • VCP Relay Boss Repair Block

    VCP Relay Boss Repair Block Weld-on repair block for engine cases that have the original relay mount shaved off, which was often done for magneto use or for a "clean" look.


  • 83-104

    83-104 Bolt kit; for Crankcases; fits Panhead 1948-1964; steel, chrome-plated / parkerized; hex head; replaces OEM 24809-30, 24815-40, 24806-36, and 4432; gross ...

  • 84-830

    84-830 Stud kit by Colony; for Cylinder base; fits Big Twin 1930-1977; steel, parkerized; length: 2-5/32”; thread: 7/16”-14 / 7/16”-20; replaces OEM 16831-30; gross ...

  • James Gasket Kits for Engines: Panhead 1948-1965

    James Gasket Kits for Engines: Panhead 1948-1965 Each complete kit contains all necessary gaskets for the complete overhaul of one engine.

  • Crankcase Roller Bearings - Big Twin 1936-1954

    Crankcase Roller Bearings - Big Twin 1936-1954 Reproductions of OEM  bearing retainers, thrust washers and spacers for all Big Twins 1936-1954.

See also:

  • Truett & Osborn Flywheels

    Truett & Osborn Flywheels Worn flywheels are a major obstacle during the rebuild of an engine, mostly with big expenses required to put them back into service. In such a case it is ...

  • Cannonball Gear Set for OHV 1936-1953

    Cannonball Gear Set for OHV 1936-1953 Opened up the gear case of your just acquired Knuckle or early Pan engine to find a bunch of bits worn beyond repair? This gear set helps you along. It ...

  • Cylinders for Panhead

    Cylinders for Panhead Replacement cylinders for orignal barrels which have reached their wear limit. Design, finish and workmanship exactly correspond to the stock counterparts.

  • VG Big Twin Rigid Frames

    VG Big Twin Rigid Frames Each frame comes with its year correct toolbox mount.

Have any questions?

  • Our sales team will be glad to help out:
    Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET
    Phone: +49 / 931 250 61 16
    eMail: sales@wwag.com