pshojo Posted July 3, 2014 Report Share Posted July 3, 2014 Who knows if a 2002 Montana 3400 would interchange with the 2000 grandprix 3100? I'm pretty sure they do, with just a bolt in. Just wanted to bounce this off you all. Quote Link to comment Share on other sites More sharing options...
RobertISaar Posted July 3, 2014 Report Share Posted July 3, 2014 interchange... more or less. everything that wouldn't work in one application(there probably isn't much) could be swapped off of the donor engine. Quote Link to comment Share on other sites More sharing options...
Leadfoot Posted July 3, 2014 Report Share Posted July 3, 2014 My 94 Olds has a 3400 out of an 01 something or other. The intake, sensors etc were swapped over. It runs great. I imagine you would have an even easier swap. Quote Link to comment Share on other sites More sharing options...
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