Want to get an LS1 out of the junkyard, and install it into a 94-98 GMC shortbed truck. Got some questions.
1.What kind of mpg will I get with the install?
2.What should I expect to pay for an engine machine shop to rebuild the engine, for it is buyer beware (from the junkyard)?
3.Would it be better to buy an LS1 transmission or keep the original one, for I'm thinking about the wire harness connections at the transmission.?
If anyone could help me out, I would appreciate it. Thanks.