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What's The Diffrence Betwen A 3.8 And A 3.9 Engine? I Have A 3.8 Broken Engine On A 03 Mustang, Can I Install A 3.9 04 Engine On It?
Any Alterations Needed?
 

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GUSGPZ said:
What's The Diffrence Betwen A 3.8 And A 3.9 Engine? I Have A 3.8 Broken Engine On A 03 Mustang, Can I Install A 3.9 04 Engine On It?
Any Alterations Needed?
yeah, you can install it. It's got a little more stroke, that's it.
 
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