M crank offset grind

[johninmn]

Anyone ever do an offset grind on a m crank and use stock h rods? If my mati is correct with 4 1/8 bore you would get around 330 cubes. Just wondering
John

 

[LarryM]

That would be quite the offset.

 

[TimYates]

You might want to recheck your math.I think that figure is right generous with that bore. maybe look at going to a 4.310" bore in a Super M or 400/450 block.

 

[johninmn]

Ill have to do some refiguring when I get home. I was 5 deep in a 6 pack of silos when it crossed my mind lol.
John

 

[LarryM]

If you stroked an M crankshaft 1 inch you could use the original pistons but you would need a connecting rod that was .5 inches shorter on center than the original. I found one and am toying with the idea.

 

[gtx1967jewison]

Shorter rods are never a good idea- power & durability suffer, all other variables being equal.