The Cunningham Blue Streak .647 is basically a Orwick with
a ball bearing crankshaft and cast on mounting lugs and venturi.
Produced in the forties, it is a very rare engine as very
few were made.
It's actually better than the Orwick because it has
a more conventional design and a ball bearing crank.
Like the originals, these current production models feature
lapped iron piston, bar stock connecting rod, and
ball bearing crankshaft. The originals came with a "make"
which the cam actually closes the contact point. Our current
comes standard with a "break" type (same as Orwick) timer
where the cam opens the contact.
from the original
Knurled prop drive Orwick style timer on
ignition version standard
Original style timer optional extra Slightly
larger crank diameter & rear bearing
Better looking blue finish.