converting 4.6 to 5.0

thecloneranger · April 17th, 2007, 12:09 AM

how would i go about converting my 2001 4.6 into a 5.0 is all thats required is changing with a 5.0 short or long block also would it be better to take the entire motor out of a 89-93 5.0 and putting in the 2001.

and finally if i did the above swapping motors would the t3650 bolt up to it

MustangMatt96GT · April 17th, 2007, 12:23 AM

You will have to get a K-member from a 94-95 GT or Cobra! You will also need the computer harness from the old motor and make sure you dont get an 88 or older motor, because they still have speed density on them and not MAF! And on the tranny I have no clue! I am clueless when it comes to trannies!

02steedagt · April 17th, 2007, 12:57 AM

Get a 3.75 inch Stroker Kit for your 4.6.... that will give you 5.0L of displacement if that's what your looking for.... probably your best route.

jrfan4life · April 17th, 2007, 04:31 AM

If you changed to a 302 would you pass the emitions.....

jivepepper · April 17th, 2007, 06:03 AM

Why?

jrfan4life · April 17th, 2007, 06:09 AM

Well I read somewhere it wouldnt pass..... Didnt know if it was fact or fiction. You would probably have change the comp.....right... I looked into this a while ago when Ford came out with the new 302 Boss engine you can buy threw them.... I investigated a bit and then was looking at other things. There was a lot of talk about not passing emissions. I stopped there......

thecloneranger · April 17th, 2007, 09:42 AM

well if it isn't going to pass emissions then i will just forget it.

my engine is getting old with over 110,000 miles on it. when the motor goes out i want to either swap it out or rebuild it. the thing is my car does not see any track time. i just really love this car and do not like the new mustangs or the direction they r headed.

what do ya'll think about dropping a mach 1 engine or maybe 2001 cobra engine in it. i have looked at the 03-04 cobra engine but those r just way too expensive plus they r supercharged and here in texas as i imagine everywhere in the country gas prices r sky rocketing.

thanks for your help

02steedagt · April 17th, 2007, 09:55 AM

yeah you could pick up a cobra or mach 1 motor (make sure if it was out of a mach 1 that the car was a manual because the automatics did not come forged) and be very happy with it. the 03-04 4v 4.6 was probably the best motor ever put in a mustang.

jrfan4life · April 17th, 2007, 10:02 AM

02Steeda.....I have a sohv 4,6 right now in my baby....Whay would it take to put a 03-04 dohv in my car?

jrfan4life · April 17th, 2007, 10:08 AM

Check this out....
http://cgi.ebay.com/ebaymotors/2004-...07984313QQrdZ1

jrfan4life · April 17th, 2007, 12:17 PM

Bump......

sonicblue · April 17th, 2007, 01:42 PM

the only part in the mach motors thats forged is the crank and that was in the manuals. and thats not the weakest part of these motors. i would just keep it simple and get a gt motor and if you want some more power get some new heads and cams

02steedagt · April 17th, 2007, 03:10 PM

Originally Posted by jrfan4life

02Steeda.....I have a sohv 4,6 right now in my baby....Whay would it take to put a 03-04 dohv in my car?

well, they are the same block, so all you would need was the motor and wiring harness, and I think the flywheels are different, so you would need to check on that. Lots of people do this swap, so it would be pretty easy to find help doing it.

that one on eBay looks pretty nice.... all you'd have to do was buy a KB supercharger to put on it and you could easily make 600 rwhp.

-oh and its SOHC (single over head cam) and DOHC (dual over head cam), meaning that the sohc motor has 2 valves per cylinder and the dohc motor has 4 valves per cylinder.

man_of_war2081 · April 17th, 2007, 04:57 PM

Originally Posted by jrfan4life

Check this out....
http://cgi.ebay.com/ebaymotors/2004-...07984313QQrdZ1

Damn I wish I had the money... that motor would be as good as sold if I did

jrfan4life · April 17th, 2007, 07:27 PM

Does that motor have forged internals?

MustangMatt96GT · April 17th, 2007, 07:30 PM

Yes!! Manley rods forged cobra crank and forged pistons!

02steedagt · April 17th, 2007, 11:41 PM

Originally Posted by jrfan4life

Does that motor have forged internals?

yes, that one on eBay is forged. some of the best stuff you can get. that motor is good for BIG hp, and you can easily make over 500 hp with simple bolt ons. also, if you didn't know, the cobra crankshaft has a center counterweight on it that allows it to spin at very high rpms (i wouldn't try this on my quote, but i read that the stock crankshaft and timing components on that cobra 4.6 are good for just over 9000 rpm!!! it truly is an awesome motor, and if you are seriously thinking about it.... that one were talking about seems like a really good deal.

MustangMatt96GT · April 17th, 2007, 11:51 PM

But it doesnt come with the M112 blower!

02steedagt · April 18th, 2007, 10:43 AM

Originally Posted by MustangMatt96GT

But it doesnt come with the M112 blower!

it doesn't matter.... anyone who wants a badass cobra motor gets rid of that blower anyways.... simply putting a KB on that w/o doing anything else will give close to 600 hp.

April 17th, 2007, 12:09 AM	#1
thecloneranger Newbie Join Date: Mar 2007 Posts: 25 iTrader: 0 reviews	converting 4.6 to 5.0 how would i go about converting my 2001 4.6 into a 5.0 is all thats required is changing with a 5.0 short or long block also would it be better to take the entire motor out of a 89-93 5.0 and putting in the 2001. and finally if i did the above swapping motors would the t3650 bolt up to it

April 17th, 2007, 12:23 AM	#2
MustangMatt96GT Proud American 1996 Mustang GT 10.76 @ 122 with d/a of 8365 ft Join Date: Dec 2006 Location: Lakewood, CO Posts: 10,168 iTrader: 3 reviews	You will have to get a K-member from a 94-95 GT or Cobra! You will also need the computer harness from the old motor and make sure you dont get an 88 or older motor, because they still have speed density on them and not MAF! And on the tranny I have no clue! I am clueless when it comes to trannies! __________________ RIP Travis Billings Special Thanks to: Andrews Racing Transmissions Baseline Suspensions Blown Small Block Ford with a hole in the block. 9.5 Dart Block 400 CI being saved for. Just because you can fuck a cactus doesn't mean you should. Never Lift Racecars

April 17th, 2007, 12:57 AM	#3
02steedagt Enthusiast Join Date: Jan 2007 Location: Solomons, MD Posts: 634 iTrader: 0 reviews	Get a 3.75 inch Stroker Kit for your 4.6.... that will give you 5.0L of displacement if that's what your looking for.... probably your best route. __________________ "America is all about speed. Hot, nasty, bad ass speed." Eleanor Roosevelt, 1936

April 17th, 2007, 04:31 AM	#4
jrfan4life Hardcore Enthusiast 2001 Mustang GT NA Join Date: Feb 2007 Location: Massachusetts Posts: 1,068 iTrader: 0 reviews	If you changed to a 302 would you pass the emitions..... __________________ http://www.myspace.com/the_final_lap

April 17th, 2007, 06:03 AM	#5
jivepepper MM Fanatic Join Date: Mar 2006 Location: Under a sombrero Posts: 4,556 iTrader: 1 reviews	Why? __________________ 2000 GT 665/540rwhp/rwtq On pump gas Best 1/4 638hp street tune 11.01, best trap 134MPH, 80*+day, 10.5" DD Cobra R's & 315/35/17 DR'S DYNO VID ---> http://www.youtube.com/watch?v=K9uOS732mdA

April 17th, 2007, 06:09 AM	#6
jrfan4life Hardcore Enthusiast 2001 Mustang GT NA Join Date: Feb 2007 Location: Massachusetts Posts: 1,068 iTrader: 0 reviews	Well I read somewhere it wouldnt pass..... Didnt know if it was fact or fiction. You would probably have change the comp.....right... I looked into this a while ago when Ford came out with the new 302 Boss engine you can buy threw them.... I investigated a bit and then was looking at other things. There was a lot of talk about not passing emissions. I stopped there...... __________________ http://www.myspace.com/the_final_lap

April 17th, 2007, 09:42 AM	#7
thecloneranger Newbie Join Date: Mar 2007 Posts: 25 iTrader: 0 reviews	well if it isn't going to pass emissions then i will just forget it. my engine is getting old with over 110,000 miles on it. when the motor goes out i want to either swap it out or rebuild it. the thing is my car does not see any track time. i just really love this car and do not like the new mustangs or the direction they r headed. what do ya'll think about dropping a mach 1 engine or maybe 2001 cobra engine in it. i have looked at the 03-04 cobra engine but those r just way too expensive plus they r supercharged and here in texas as i imagine everywhere in the country gas prices r sky rocketing. thanks for your help

April 17th, 2007, 09:55 AM	#8
02steedagt Enthusiast Join Date: Jan 2007 Location: Solomons, MD Posts: 634 iTrader: 0 reviews	yeah you could pick up a cobra or mach 1 motor (make sure if it was out of a mach 1 that the car was a manual because the automatics did not come forged) and be very happy with it. the 03-04 4v 4.6 was probably the best motor ever put in a mustang. __________________ "America is all about speed. Hot, nasty, bad ass speed." Eleanor Roosevelt, 1936

April 17th, 2007, 10:02 AM	#9
jrfan4life Hardcore Enthusiast 2001 Mustang GT NA Join Date: Feb 2007 Location: Massachusetts Posts: 1,068 iTrader: 0 reviews	02Steeda.....I have a sohv 4,6 right now in my baby....Whay would it take to put a 03-04 dohv in my car? __________________ http://www.myspace.com/the_final_lap

April 17th, 2007, 10:08 AM	#10
jrfan4life Hardcore Enthusiast 2001 Mustang GT NA Join Date: Feb 2007 Location: Massachusetts Posts: 1,068 iTrader: 0 reviews	Check this out.... http://cgi.ebay.com/ebaymotors/2004-...07984313QQrdZ1 __________________ http://www.myspace.com/the_final_lap

April 17th, 2007, 12:17 PM	#11
jrfan4life Hardcore Enthusiast 2001 Mustang GT NA Join Date: Feb 2007 Location: Massachusetts Posts: 1,068 iTrader: 0 reviews	Bump...... __________________ http://www.myspace.com/the_final_lap

April 17th, 2007, 01:42 PM	#12
sonicblue Hardcore Enthusiast 1990 GT Join Date: Aug 2006 Location: dalzell, south carolina Posts: 1,436 iTrader: 0 reviews	the only part in the mach motors thats forged is the crank and that was in the manuals. and thats not the weakest part of these motors. i would just keep it simple and get a gt motor and if you want some more power get some new heads and cams __________________ 1990 5.0 getting all fixed up for next season 2004 mustang gt 520rwhp, 491 trq sold

April 17th, 2007, 07:27 PM	#15
jrfan4life Hardcore Enthusiast 2001 Mustang GT NA Join Date: Feb 2007 Location: Massachusetts Posts: 1,068 iTrader: 0 reviews	Does that motor have forged internals? __________________ http://www.myspace.com/the_final_lap

April 17th, 2007, 07:30 PM	#16
MustangMatt96GT Proud American 1996 Mustang GT 10.76 @ 122 with d/a of 8365 ft Join Date: Dec 2006 Location: Lakewood, CO Posts: 10,168 iTrader: 3 reviews	Yes!! Manley rods forged cobra crank and forged pistons! __________________ RIP Travis Billings Special Thanks to: Andrews Racing Transmissions Baseline Suspensions Blown Small Block Ford with a hole in the block. 9.5 Dart Block 400 CI being saved for. Just because you can fuck a cactus doesn't mean you should. Never Lift Racecars

April 17th, 2007, 11:51 PM	#18
MustangMatt96GT Proud American 1996 Mustang GT 10.76 @ 122 with d/a of 8365 ft Join Date: Dec 2006 Location: Lakewood, CO Posts: 10,168 iTrader: 3 reviews	But it doesnt come with the M112 blower! __________________ RIP Travis Billings Special Thanks to: Andrews Racing Transmissions Baseline Suspensions Blown Small Block Ford with a hole in the block. 9.5 Dart Block 400 CI being saved for. Just because you can fuck a cactus doesn't mean you should. Never Lift Racecars

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