Choosing the right stroke for a 340

Yeah, the 2.9 inch stroke used in the trans am engine would have required some boat anchor pistons back in 1970. Ross and CP can make some fairly light pistons for such a setup now, but I don't see it being a good option unless there was a 9 inch deck height block available. I've always been more than impressed by the stock stroke in a 340 with X heads, though. Even in a heavy 1973 B body with 3.55 gears.