I have a suggestion... while yes you would most certanly be different by doing anything with a malibu, why not just work with what you have? I mean I would love to see a 3800 in there and would more than likely be easier than say a SBC, but it will cost you an arm, a leg, 3 testicles, and other various body parts to get a motor swap that im sure has never been done. just food for thought. or i maybe pissing in your cherrios im not sure. either way your welcome