stroking and super m

[SMTA]

How far can I stroke a Super M crank and still use stock rods and not have to grind anything off of the block? Also can I run pistons without sleaves or how far can I bore and still use sleaves?

Thanks

 

[north puller]

The largest bore you can do is 4.375", and this must be done carefully. You can run that size in the block, or sleve down to 4.310", 4.25", etc.

Just an educated guess, but I would say that largest stroke without and grinding would be the old M&W stroker kit at 5.75".

 

[mm585]

6" will go with out notching the cam with stock rods, ive done that.

 

[bp4455]

if you know what youre doing 6.5 should be feasible