Another piston option for the 273.

Could offset grind rod journals on crank to gain .020 more stroke when using 6.125 Chevy rod. Have to turn journals down anyway to use that rod, just as well gain some stroke doing it.
Yeah your right ive been on the scat web sight.
They do a 6.200 and a 6.250. For Chev. The big end are a bit wider but the BE pin is .024 smaller.
I could get a push up centre of pin to top of 6.220- 6.270. I think thats a good idea.
6.238 is what i needed to get the race piston to the position of the LA piston rod combination.
Its late for me but i will do a bit more number crunching to see how far the pistons push out.
Very possible Chev rods are cheaper as well.