090 Stihl 70mm big bore gtg killer

[Deets066]

Wonder what stroke and bore they used on the 10 cube 090

 

[EJ mcnamara]

So what all was involved in making that all drive 1 sprocket and common crank? That a marcel fab job?

Bobby that was a saw we put together just to see if we could do it not a Marcel motor but he looked at it when I was at a contest against him I never ran it that day just a fun saw to run

 

[EJ mcnamara]

Deets the old 10 cube 090 was a 72mm bore but I had 68mm made and 70 mm made just to keep them more reliable I had some 68mm pistons made for the 3120s with a 090 cylinder on them to I have two of those motors running cliff helsel built

 

[Bobby Frank]

Bobby that was a saw we put together just to see if we could do it not a Marcel motor but he looked at it when I was at a contest against him I never ran it that day just a fun saw to run

I bet it was a horse, probably a clysdale