I was going to say that the block would still be good, you caught it quickly when it failed. New heads for sure, but you probably didn't even score the cylinder wall.No indication. In fact it ran like new with no oil burn. In fact, it broke the valve during start up. I had several basic mods 2.5 pulley, ported tb, weaponx heat exchanger, borla exhaust and Cai. With aggressive tune. All done around 40k. I plan to rebuild it as a 416 with stage 2 cam. Plan to put another 300k on it.
You are correct. The added stress/strain due to the strokers rod angle creates a less reliable assembly. Hence why I went 388.Stock stroke would help in going another 300k. I’m not as knowledgeable as some, but I’ve heard the 4” stroke doesn’t have the longevity. I might be wrong, and maybe I’m just thinking older ls stuff, with shorter sleeves.