I don't recall. What ever the maximum bore was of a race r-block, light small Chevy rods, with light pins, Honda rod journals, hockey puck pistons, billet crank with 4.25 stroke (at least, may have been more). Dry sump.
If memory serves, it kicked a rod out. Chevy part.
You ever notice sometimes it's those type builds that just don't last? All that money and special machine work and matching all those "mismatched" parts to try to make something work and then a wore our bore, dirt road build out lasts it. lol
