The Cyclery IOE Cylinders
- Cylinder set by The Cyclery
- fits DCA & DCB motors 1923-1924, 74”/1200 cc IOE models 1925-1929
- cast iron, cast finish
- nominal bore: 3-7/16 ”
- inner Ø: 86.9 mm
- replaces Harley-Davidson part number HD 4-23, and 5-23
- Australia
- gross weight: 21.3 kg
Protect your valuable and irreplaceable original crankcases from worn-beyond-repair original cylinders (a.k.a. time bombs). These accurate reproductions are cast from state-of-the-art alloys to modern specs and stand up to all horsepowers you can pack on an IOE lower end. Now you can finally have both that stock factory look and a safe engine. Racers around the globe use them with great success for years. Sold as pairs only.
74”/1200 cc
Large flange cylinders with 3-7/16 ” bore for 74cui./1200 cc engines. These are cast like the later style 1928/1929 cylinders with straight, over-the-head fins next to the valve pocket and horizontal carryover fins from the pocket to the cylinder proper for increased stability.
Exhaust valve seats are unmachined.
Cylinders which are not offered as complete kits, i.e. with pistons and rings, are not finish honed. This job must be performed in a qualified workshop.
Accessories:
60-879
63-724
63-728
The Cyclery Intake Housing Ring Nuts - for DCA and DCB 1923-1924 and FD/JD 1925-1929
Gaskets for Cylinder Base: 61 cui/1000 cc IOE 1924-1929, 74cui/1200 cc IOE, Knucklehead, Sidevalve Big Twin
Stock Replacement Pistons - for 74 cui Models 1921-1929
See also:
The Cyclery Vintage Rider Caps
The Cyclery Front Fenders for IOE Models
The Cyclery Socket Wrench for Exhaust Nipples
Have any questions?
Our service 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: service@wwag.com