Replacement 1999 3.8L Engine - Ford Mustang Forum

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post #1 of 3 (permalink) Old 01-01-2014 Thread Starter
Oscar4pbr's Avatar
Joined: Jan 2014
Location: Jacksonville
Posts: 3
Replacement 1999 3.8L Engine

Engine in car has rod through oil pan. I have a complete 1997 3.8L. Can I pull the intake, heads, then swap this short block into car using heads and intake from 1999 engine. I do know the older engine doesn't have the balance shaft like newer engine does. I know lots of folks do the split port swap to the older engine but I wanted someone to say they had used the older short block into newer model. I don't want a V8 swap, I simply want the car back on the road quickly. Thanks for any input if it will work.

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post #2 of 3 (permalink) Old 01-01-2014
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Location: Houston
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Just trying to understand why go through all this work. For what? The 1999 V6 is externally balanced. It wasn't until half way through the 2000 model year that Ford switched to the internally balanced V6, So both motors should have the same balance.

The two issues I can think of when trying to put a 97 V6 into a 1999 are the ECT verses CHT and the different cam sync (2 wire vs 3 wire). Be sure to use the wiring harness from the 1999.

2003 GT Convertible (sold & missed)
2000 GT coupe (Craigslist project. Fixed. Now my DD). Windsor to Romeo swap.
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post #3 of 3 (permalink) Old 01-01-2014 Thread Starter
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Joined: Jan 2014
Location: Jacksonville
Posts: 3
My question is will it work? I know about the external and internal balance factors. The 1997 3.8L is a single port engine so I have to pull those heads and intake then put the split port heads and intake on it to install in the 1999. Quick, easy, and cheap since I already have the 97 engine if it will work. I will be using all the wiring originally in the 1999 to install.
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