McCoulogh 1-86

[Ilovesaws]

Anyone have information of what a Big Dog engine block core is for an old McCoulough 1-86 saw? Looking at one that has this in the listing. Saw has an upgraded Tilly carb, 2:1 gear drive, 404 upgraded sprocket and largest H&S Hadston custom bucking spike. Any information appreciated thanks

 

[sean donato]

Should be the gear drive version of my 1-76. 99cc saw. Good saws, beastly torque. What model tilly is one it? 404 should have been the factory chain pitch too.