We have been discussing what pistons to use with the 5 main block. One choice is to use the readily available pistons for T. We will have stock 4" stroke (looks like we can just squeeze that in). So if anyone could shed any light as to how much HP the stock pistons might stand. I suppose that 6000 rpm is achievable (function of the cam, carb etc).
After all that work and expense, Ross pistons at about $100 each might be a good investment.
Not only do you have the construction of the piston to consider, but the wristpin. Look at the spec of some modren Ford piston, and maybe buy a sample. T wristpins are .75", while modren ones run .92" or so. If clamped, the pins have to be reinforced under the rod area.
You might luck into some interesting pistons on tbay.
What rods will you have?
Probably the rods will be custom from Crower, so the Ross idea is appreciated
If you want to really understand piston design, the only source I've seen is the Audel's from about 1937 on to maybe 1947. There are about 75 pages on pistons, pins and rings. Search tbay for Audel*