Have been reading and your right, the 4.3L is a great engine for flying down the freeway, but to tow, NO, how can I improve hp, my truck is very clean and like new, How hard is it to put in a small V8, and what matches up to the computor? I would really like a 5.3 but---- or should I do the 4.3L high output, anyone know the hp differences, it is a 2001 Gmc single cab/shorty.
thank you Bright Red truck Lady, needs more power.