offset grinding crank

Here is an example for you guys Paul Rossi back in late 80's
would offset grind a stock 360 crank to 2" chevy rod journals.
The stroke would increase to 3.685 (382 CI), he would use
off the shelf Diamond pistons for a 355 NASCAR motor and shave
the domes down to get 12.6-1 compression. With econo w2 heads,
a 800 cfm Thermo-quad carburator, 904 trans and a 2300# Rampage
pickup he would turn in the 9.30's at 153. When he started out, he
was building to run 9.90's. Combo ended up better then he thought it
would be.

So I guess you could offset grind the crank with out welding
but it would still take new chevy rods and different pistons.
Would you have anymore information on this motor? I just purchased it from Ron Kissner. I also purchased the rampage. Thanks all information appreciated.