'95 3.8 is dieing... What to replace it with???

[MonsterTrosity]

Ok, hear is the deal. I'm sure most of you have heard about the whole 3.8l headgasket problem that was fixed in the 96+ models. My engine is still functional, but it knocks like a steam train going down hill on a 45 degree slope, and I know it won't last forever. My options are to replace it with another stock 3.8 from the same year (unwise), replace it from a later year or try to find a 4.6 or 5.0 or modified motor.

I definately would like more power, but I want to go the easieast/quickest rout possible. If I can get away with dropping a stock 5.0 or 4.6 in it with paying less than $3k, then I would do that. Otherwise, I am stuck going with stock. What is the possibility of dropping a supercharged 3.8l ThunderBird motor? How different of a motor is it, and how similar are the components? Any experienced input is a plus. I will be having this professionally installed.

Thank you,

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MonsterTrosity