I wanna change my engine on a 2004 Infiniti G35sedan
3 Answers
As in: replace the existing with the same, or as in: swap it out for a different size engine? If you've never done this type of thing before, may want to let a pro tackle it, if you want to swap out to a bigger motor, then there's a whole lot more involved. Drivetrain, exhaust, wire harnesses, computer modules, anti-theft, all have to be modified.
Go with the exact same year/model engine as what you have. Anything else will be a nightmare.