I recently got into contact with the man who built the car I own now. Mind you I use built loosely because a lot of the work is dodgy and information is foggy. Which is why I am here, I recently got into contact with him and he said I had a stroked engine. But he doesn't know whether its a 355, 383 or any other stroked motor in between. It has the chop of a 383 (the stumbling one), built on a late 90s 350 block, the valves, heads and everything looks like they've been adjusted and things but I don't know for sure. If anybody could give me some pointers on how to distinguish a 383 motor without taking it down to the block, i would appreciate it.