Hi, I am thinking about doing an engine swap in a 1989 Isuzu Trooper with a fuel inyected 2.6 engine. I live in Puero Rico, a territory of US. Since 4JB1T engines are extremely difficult to find. I've googled this engine model and found out that there are 4JB1T engine for industrial applications also found an information that the original japanese 4JB1T installed originally in the Troopers have more power (BHP) than those 4JB1T engines for industrial use, by the way made as an aftermarket in china.

Is this info correct, how can I order the correct one? May I use the same tranny? Thanks.