470 stroker shopping list

wingrider said
I am looking real hard at the Diamond racing piston with the -12.5 dish in it. Seems that would give it 10.5-1 compression with my thoughts of what to put on it.

I was filling up the commuter car the other day (diesel), and happened to look over at the E-85 pump. That got me thinking, wonder if I should make the boat run on the E-85? I do understand it has less BTU rating than gas, and at wide open throttle you burn more than the gas counterpart, but it is significantly cheaper here.

If that is a good idea, should the compression be a bit higher than 10.5-1?

Thanks again for everyone’s help!

It sounds like you are trying to make your life more difficult, and expensive. Save the hard decisions for the cam, based on cruising rpm, and the the correct prop diameter and pitch.

If I understood correctly, you already have the crank and rods. A piston that fits that combination is all that's needed. Use the dished Icon IC839 for pump gas, and the flat top IC825 for the E85, with the Trick Flow heads, and move on to working on the cam and prop.