400 stroker cranks

Well, the one I saw seemed to need 7.140 crank C/W diameter with a 1.12 CH piston and a .180 skirt and .060 clearance for the C/W. That's a 4.5" stroke and a .990 pin. A couple of people seem to have done it, so it's possible. Just doing the math, it seems you can go to a 1.195 CH, if you have a true 9.980 deck height on the block, and go with a zero deck height piston. I figure get the block machined, see what the true deck height is, then order pistons accordingly. Diamond will move the pin height for a reasonable fee.

The KB (or Koleno/World/etc) is a better deal, completely agree, but I have a bunch of 400 blocks and a pile of parts sitting about. S/F.....Ken M