Got the right one

Topic: Got the right one (Read 1147 times) previous topic - next topic

Got the right one

March 12, 2006, 12:36:01 AM

Hi all,
I have an 86 with a 3.8 CFI and I just recently purchased a 85 Marquis that has a 5.0 EFI is this swap going to be difficult? It as well has an AOD tranny will the 5.0 mount correctly? Will the tranny and drive train install right in my Cougar and last Q here, will i need to buy a new brain?

I would appreciate any help or advice that you all can give me..

Got the right one

Reply #1 – March 12, 2006, 05:13:27 PM

Do you mean the Cougar has the AOD or the Marquis? And by brain do you mean computer? Just clarify these things so that the guys can help you out a bit better. The simplicity of the swap depends on your mechanical aptitude. People have done it in as little as 2-3 days but that's with multiple workers, and working constatnly.

Marquis has the stuff

Reply #2 – March 14, 2006, 12:42:44 AM

Hey thanks for answering,
Sorry i wasn't more specific. The Marquis has both the 5.0 and the AOD, and yes I meant the computer. The Cougar currently has a 3.8 w/ a C3 or C5 the tranny shop was not sure which one is that weird or what? Anyways I am prity good with electrical but sure no expert.

I know this is going to be quite the undertaking and I would like to have the heads up on the process or at least a great lot of advice from ones who know what is what.

Thanks

Got the right one

Reply #3 – March 14, 2006, 12:48:46 AM

Well that means that the engine and tranny will bolt right into the car.

Got the right one

Reply #4 – March 14, 2006, 10:34:27 AM

If its an 86 you will have a fun time getting motor mount plates.

The tailshaft on that tranny may be longer than what would have come in the car.

You could use the computer out of the gran marquis but you will have to find a v8 harness for an 86. Any other year will require modifacation.

Got the right one

Reply #5 – March 16, 2006, 02:56:04 PM

I wasn't aware that EFI went into the big body cars in '85.....thought those were the ol' CFI. Was this motor swapped into the GranMarq? Also if he's gonna use the computer that is already working with the motor then why not use that harness?

Got the right one

Reply #6 – March 16, 2006, 03:41:49 PM

Quote from: Paul Flockhart

I wasn't aware that EFI went into the big body cars in '85.....thought those were the ol' CFI. Was this motor swapped into the GranMarq? Also if he's gonna use the computer that is already working with the motor then why not use that harness?

Marq harness's are huge! And I think they route things all backwards than are cars. like the VSS and neutral/reverse wires run up to the engine harness then into the car. Instead of through the floor pan like our cars.

Got the right one

Reply #7 – March 16, 2006, 04:10:40 PM

it is true. I ccan take pics of my dads crown vic if you want.

Then engine all points the wrong way. All of it.