This is a difficult question because the options are endless but you would be limited in availability. Clearly it would be great to put a VR6 engine in it but they are pricey and probably not very common.
The other thing is, how much work do you want to do in order to get it to fit. I am not finding any cross references for a carb engine that just bolts into your car. Anytime you change an engine you have a large hurdle to get over of just getting the engine mounted. Once it is mounted, then you need a transmission to go with it. Then you have to mount the transmission and axles.
All of this requires cutting and welding so that you can get it mounted.
This of it like a domino effect. Once you change one thing, everything downstream of that is affected and needs to be altered. Clearly it can be done but unless you are prepared to work through all these engines I would try and find someone that has done what you want to do and find out everything you will need so that you are not going in blind.
Unfortunately we have not done this swap so we don't have those specifics but the things to look for are the same no matter what swap you are doing.
Hopefully this helps. Thanks
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Wednesday, June 24th, 2020 AT 8:44 AM