12-07-2019, 02:50 AM
(12-04-2019, 02:41 PM)Terry Bentley Wrote: That is most likely a saw block. The 49e with recessed exhaust gasket was also a newer style casting, like the 49m/c, with a more rounded cylinder head. This one is square like the older fixed head saw motors.
Terry,
I have both versions of the 49E in my Mac collection. The early version of the E has the same squared off shape of the fins as the C, the later version has the more rounded corners on the fins and the fins are thicker. The later version also weighs more due to the thicker cross section of the fins. Both are true kart motors.
Steve O'Hara