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» Northern California Ford Owners     » Automotive   » Tech Talk   » 1998 GT to 2003 GT engine swap

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Author Topic: 1998 GT to 2003 GT engine swap
Built4Speed
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I am swapping a complete 2003 gt motor into my 98 gt. I have both cars. Will the computer need to be swapped? Will the cluster work since it is not digital in the 98?

[ 2015-06-09, 02:46 PM: Message edited by: Built4Speed ]

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Built 4 Speed...Built 4 Cheap

Posts: 230 | From: Sacramento | Registered: Dec 2014  |  :
Wht86drop
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If i were you id swap the whole harness and gauge with computer. No headache after that. And when i say whole harness i mean eeeeverything

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Jalapeña Red 86 GT Vert
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Posts: 1669 | From: East Palo Alto, Fiji Islands | Registered: Jun 2012  |  :
Blind
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sensors should all work fine, the dash (speedo?) analog gauge gets it's signal from the trans, not the engine. I think the 98 used a digital speedo vss though, my `97 did...I had to use a dallas speedcal to correct my speedo after the 4.30 gear change.

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89 LX Notchback ex 4cyl, 14psi
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Posts: 8521 | From: Fairfield | Registered: Jul 2003  |  :
70stang351w
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thought you only had to get the adapter for COPS and plug and play?

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1996 GT VERT /32v MOD - SOLD
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Posts: 1419 | From: 925 | Registered: Apr 2010  |  :
Wht86drop
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If he has both cars it would be cheaper to swap it all so he doesnt spend money on something he doesnt need

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Jalapeña Red 86 GT Vert
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Posts: 1669 | From: East Palo Alto, Fiji Islands | Registered: Jun 2012  |  :
SacStangDriver
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just use the 98 gt harness and spark plug wires and put the 03 motor in. only thing you'll have to swap is the timing cover for the mounts. done this swap many times.

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Need sidework done at great prices? I work on all makes and models from engine work to gears. Check engine light problems too. 916 912 3493

Posts: 1217 | From: sacramento | Registered: Mar 2008  |  :
SIC9250
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quote:
Originally posted by SacStangDriver:
just use the 98 gt harness and spark plug wires and put the 03 motor in. only thing you'll have to swap is the timing cover for the mounts. done this swap many times.

^This.Dont make shit more complicated then what some of these replies are lol

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Coyote_Mach1

Posts: 6959 | From: in the drivers seat. | Registered: Feb 2008  |  :


 
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