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Discussion Starter · #1 ·
My motor is smoking and down on power. It has 200,000+ miles. I found a 4.6 locally out of a merc marq for $400 71,000 miles. The motor is still in the car and runs fine. Is the long block the same as a 97 GT? I am pretty sure it is a non pi but maybe the forum can tell me more. My car is more of a cruiser and a show car and the smoke is embarassing.
 

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why not just do the pi swap?
 

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Discussion Starter · #4 ·
Just doesn't seem to be a smart call to put heads on a motor with 200,250 miles. It is an auto being that it is in a mercury marquis. I also wouldn't think it would matter if it was a Romeo or Windsor as I am swapping the long block into a 97 gt with a five speed and I will be using my tranny. I really just want to know if a 4.6 long block is the same no matter what it came from.
 
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