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Author
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Topic: Will a 99' up 4.6 SOHCengine fit in a 98'
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nineeightstang
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Member # 2685
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posted
 
 
I was wondering if a 99 and up Mustang GT 4.6 SOHC engine fit into the engine bay of a 98 w/o any modifications. Im not sure because its the same engine but a different body style.
Posts: 109 | From: oakland | Registered: Apr 2003
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Stimson
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Member # 51
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posted
Yes. A short cut would be to simply put the '99+ heads/intake/cams on your '98 short block.
Posts: 2373 | Registered: Jun 2000
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nineeightstang
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Member # 2685
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posted
I need the whole egine replaced. Will the 98' 5-speed tranny fit the 99+?
Posts: 109 | From: oakland | Registered: Apr 2003
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
Yes, but dont forget about the `99+ "coil-over-plug" ignition and "return-less" style fuel system....
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-SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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66 AC COBRA
Nitrous King
Member # 904
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posted
electronics are completely different, build up the short block u have now and put on some pi heads and 99+intake
u can get the swap kit here
dealing with the returnless system would be a real bitch, ie. different computer
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FFR AC Cobra
72 Vega - WCHRA Extreme 10.5
Posts: 6280 | From: Winters | Registered: Feb 2002
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CustomFastbackCA
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Member # 1369
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posted
Your engine will swap right out. No need to change fuel system or electrical system at all. The tranny will fit was well. No difference in computer either. Do the whole swap if you ever plan on using a blower.
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www.CustomFastbackCA.com
1995 Dinan M3 Avus Blue Metallic
1967 GT Mustang Fastback (Eleanor)
Ask questions if you have'em, anyone who thinks they're too cool, know's it all, or doesn't want to look stupid has more problems than you.
Posts: 346 | From: Santa Clara | Registered: Jun 2002
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nineeightstang
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Member # 2685
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posted
Anyone know of some good places where I can get a complete engine in the bay area w/ a warranty on it. How much would a dealer charge for a new engine.
Posts: 109 | From: oakland | Registered: Apr 2003
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99gt-UJSTLST
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Member # 584
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posted
quote:
Originally posted by nineeightstang:
Anyone know of some good places where I can get a complete engine in the bay area w/ a warranty on it. How much would a dealer charge for a new engine.
were ever you go (dealer)they will only warranty it for about a year.
dealer motor cost = 3000-5000 depending if you have a hook up and its only warrantied for 1 year
junk yard motor = 1000-1500 depending where you go
they come with 90 days warranty
i would just get a junk yard motor and swap it out
it would be the most cost effective
as far as it fitting with no problems, it will
I done 5 swaps (99+ motors to older 4.6l) with no problems you just need to swap your timing chain cover and oil pan over
and every thing else should bolt right up to the motor you will need to use the bolts off the new motor to bolt on the the timing cover couse the bolts are diffrent sizes
also I would recomend you tune it to get the best power out of it couse the computer is tuned to make less power, which the 98 and older 4.6 make
I would not do a head swap
couse its goin to cost you just as much as buying a used motor with 30k on it
and if you have alot of miles on your motor already the bearing might no handle the extra power and you might spin the a bearing or 2
trust me its alot simpler to do a motor swap then it is a head swap
hope this helps
[ April 24, 2003, 09:24 PM: Message edited by: 99gt-UJSTLST ]
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SOUTH BAY STANGS
MINOR BOLT ON'S
www.southbaystangs.com
Posts: 2558 | From: SAN JOSE CA | Registered: Nov 2001
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90 Stang5.0
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Member # 2710
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posted
![[patriot]](graemlins/patriot.gif)
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"Keep Your Friends Close But Keep Your Enemies Closer"
Posts: 130 | From: NOR CAL | Registered: Apr 2003
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
quote:
Originally posted by CustomFastbackCA:
Your engine will swap right out. No need to change fuel system or electrical system at all. The tranny will fit was well. No difference in computer either. Do the whole swap if you ever plan on using a blower.
*(Seriously, I'm not being sarcastic..I want to learn!)
-How are the computers the same?...96-98 are return style fuel system...Arent the `99 returnless fuel system computers totally different?...
-How are the fuel system the same?...You have an extra line goin back to the tank on a return style fuel system, right?....
-What happens when he tries to plug in the wiring harness to each individual coil pack instead of 2 front mounted coil packs?...
I'm sure that just a stock `99+ "long-block" will fit in the place of a 96-98 "long block", but I think that "nineeightstang" wants a complete engine....
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-SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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CustomFastbackCA
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Member # 1369
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posted
The only difference in computers is that the 96-98' are tuned differently than the 99', so a chip would help performance, but not necessary (computers are smart, let'em do their job ![[Wink]](wink.gif) ). So anyways with the engine, picture a 98' with return style and coil packs (you're right about the returnless on 99'); they would still be there if he took his motor out and swapped it with a 99' motor; you literally just have to swap it out, they will work. There are no tricks or tough switching techniques, the engines are virtually the same it is just the components that are different. I can get a pick up my setup for you tomorrow if you want, as mine was a 96' and I did a 99' motor swap.
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www.CustomFastbackCA.com
1995 Dinan M3 Avus Blue Metallic
1967 GT Mustang Fastback (Eleanor)
Ask questions if you have'em, anyone who thinks they're too cool, know's it all, or doesn't want to look stupid has more problems than you.
Posts: 346 | From: Santa Clara | Registered: Jun 2002
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
quote:
Originally posted by CustomFastbackCA:
Your engine will swap right out. No need to change fuel system or electrical system at all. The tranny will fit was well. No difference in computer either. Do the whole swap if you ever plan on using a blower.
I know you can get a `99+ long block, keep the `99 motor and run the 98 components.(like the 2 front mounted coil packs instead of individual coil packs)...
The way you made it sound is that a `99 COMPLETE engine(coil packs and fuel system) will just switch right in..
The computers are WAY DIFFERENT!!!...I'm positive there is no way a 98 computer would work on a returnless/individual coil pack 99+ engine!!
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-SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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CustomFastbackCA
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Member # 1369
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posted
gotcha, ya just the motor.
[ April 25, 2003, 09:45 PM: Message edited by: CustomFastbackCA ]
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www.CustomFastbackCA.com
1995 Dinan M3 Avus Blue Metallic
1967 GT Mustang Fastback (Eleanor)
Ask questions if you have'em, anyone who thinks they're too cool, know's it all, or doesn't want to look stupid has more problems than you.
Posts: 346 | From: Santa Clara | Registered: Jun 2002
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BlackNGold
CaliforniaFords.com
Moderator
Member # 655
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posted
CustomfastbackCA~Any chance you'll be taking the Vortech off the Saleen?...Maybe we could "run-`em" somtime.. ![[Big Grin]](biggrin.gif)
lol, the only way I would win is if you took the Vortech off!!!
nineeightstang~I hope you got some good info off this post! ![[Smile]](smile.gif)
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-SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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