another new guy w/a 3100 question

[jawalkerjr]

I have a 91 Pontiac Grand Prix SE with a 3100 that has 250K on it. What year(s) engines & trans will bolt in, basically plug & play? I'm thinking engine & trans at the same time, less headache & easier to pull. Thanks in advance.

[bob442]

any 3x00 motor will, most swap parts avalible from the wot-tech.com store, trans i'm not to sure about.
3400 motor is a almost plug and play deal, you have to change a few things with the injectors/harness between both motors, and a few sensors. if you search 'hybrid swap', all your answers will be at your fingertips.