got hold of 2000 splitport mustaang engine w 12k, question is should i just change top end of my 96 3.8 w splitport top end for the more aggressive cam in 96 or change whole motor?
typically you just swap out the heads, and intake manifolds (upr/lwr) but if you have the entire motor i'd put that in. it will put out more then swapping out the parts!
In all honesty, it wouldn't really matter either way. I would swap out the complete engine, simply because it is easier (in my opinion) and the 2000 engine probably has less miles on it than your 96 engine.
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