The Ford Barn - View Single Post - How Close to (Over)Square In V-8 Bore/Stroke?

deuce5wndw · 01-28-2021, 11:23 AM

I have often wondered about performance difference in a 258 (239 .125 over) and a stock 255 cube Mercury ( 4 inch stroke standard bore) I have a Mercury but never driven or rode in a 258. I think tubman has had both if my memory is correct.

01-28-2021, 11:23 AM	#13
deuce5wndw Senior Member Join Date: May 2010 Location: Liberty, KY Posts: 901	Re: How Close to (Over)Square In V-8 Bore/Stroke? I have often wondered about performance difference in a 258 (239 .125 over) and a stock 255 cube Mercury ( 4 inch stroke standard bore) I have a Mercury but never driven or rode in a 258. I think tubman has had both if my memory is correct.