I want to swap out the 267 out of my 1987 Cutlass Supreme for a Buick Grand National 3.8l is it possible?
Just wondering what all would be involved in doin this. its a 231 actually, 6 cylinder the 231 currently in it is a Buick 3.8l same as the Grand National 3.8 without the Turbo and intercooler and 3:23 rearend, instrument cluster is interchangeable, will need all new wiring and computer, this is all know as of now. Thank You for replys. A: you,d have to change the transmission,and everything on it,you also need the computer for it,there’s a lot of changing to do exhaust wise,but it can be done,if you have access to all the parts to do this with it wouldn’t be too bad,usually finding all the parts to work with it the hardest part of it,good luck on it.
