Hi all.
Itīs the green head or the Stalllion?
Diferent engines.
Regards.
Manuel.

Hi Rob:
In the early 1960's K&B built a 35 in the same generic case as the 40.  That is the exterior was all aluminum, bolt-on front case, it was possible to reverse the center section of the block to reverse the exhaust.  Venturi was a large trumpet shape with (I hink) an insert to sleeve it down for suction fuel feed.  I believe it said "Torpedo" on the case on the side opposite from the exhaust.  Not sure but I think it was also available in plain bearing ro ball bearing.

Does that description sound like your friend's engine?  Any way to post a pix?

The Stallion 35 has a shiny aluminum case and steel fins(part of the cylinder).  The Series75 35 also has a shiny case, but is built with a bolt on, plain bearing front end and a modified Torp 40 main crank case.  They also built a double ball-bearing version of the Torp series 61 and 64, with a separate front end and a matte finished case.  That was more of a racing/combat motor.

If the front end bolts on it is not a Stallion, which was a pretty good sport engine by the way.  If the front end bolts on it can be either the plain bearing Series 75 or an older Torpedo series 61 or 64

That's a Series 75. Plain bearing. Will likely need a venturi restrictor to run on suction.

Bill Lee

Hi ,

Thanks fellas .

We really appreciate all the help ,

Rob