4.6L SOHC swapped to DOHC - Mustang Evolution

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Old 07-19-2013, 07:50 AM   #1
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4.6L SOHC swapped to DOHC

I have an 03 GT. it's a great car and I love it but recently I test drove somebody's Mach 1 and it was amazing. So I'm looking to change out the engine for DOHC. Would it be a simple swap or am I biting off more than what I can chew?
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Old 07-19-2013, 07:51 AM   #2
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There's a thread here on the forums I believe that details someone's 4v swap

Here: 2v to 4v New Edge Swap writeup
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Old 07-19-2013, 07:54 AM   #3
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isn't there more to the mach 1 than just the motor?
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Old 07-19-2013, 07:57 AM   #4
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Brakes interior forged crank on manuals etc
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Old 07-19-2013, 05:20 PM   #5
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Originally Posted by silverskoundrel View Post
isn't there more to the mach 1 than just the motor?
Brembo brakes
Tranny has different ratios
3:55 gears
Tokico struts/shocks
DOHC engine (5spd - Forged Crankshaft )
And other things
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Old 07-19-2013, 08:03 PM   #6
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Originally Posted by Slow4V View Post
Brembo brakes
Tranny has different ratios
3:55 gears
Tokico struts/shocks
DOHC engine (5spd - Forged Crankshaft )
And other things
Tranny ratios?? It's a TR3650..
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Old 07-19-2013, 08:08 PM   #7
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Originally Posted by Slow4V View Post
Brembo brakes Sort of... same PBR style calipers as the Cobras and Bullitt got but the rotors are Brembos
Tranny has different ratiosNope, same TR3650 that all 01.5-04s got minus the Terminator, gear ratios are 1st - 3.38; 2nd - 2.00; 3rd - 1.32; 4th - 1.00; 5th - 0.62; Rev. - 3.38
3:55 gearsCorrect
Tokico struts/shocks Correct but unfortunately they are not adjustable like the Illuminas, its almost an identical setup to the Bullitt suspension
DOHC engine (5spd - Forged Crankshaft )Yep Autos have the cast crank
And other things
Machs also have the specific seats, the specific cluster, Mach rims, some other cosmetic stuff and the biggie is the 4V obviously. The 4V is a very nice motor stock and has a nice head start on the 2V but you have to factor in your conversion cost and what bolt ons you have, what will need to be changed etc... etc... In many cases its cheaper to go 2V and just supercharge it than it is to convert to 4V. You can build a Vortech kit with injectors and intercooler for under $2k easy and that'll max out the internals on either engine because all modulars except the Terminator use the same cast/powdered metal rotating assy rods/pistons.
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Old 07-19-2013, 11:39 PM   #8
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Quote:
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Tranny ratios?? It's a TR3650..
5th gear is different

---------- Post added at 12:39 AM ---------- Previous post was at 12:38 AM ----------

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5th gear is different
Well I've read the O/D is a different ratio
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Old 07-19-2013, 11:48 PM   #9
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Old 07-20-2013, 07:46 AM   #10
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All tr3650s after mid 2001 have that final drive ratio.
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Old 07-20-2013, 07:48 AM   #11
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All tr3650s after mid 2001 have that final drive ratio.
If you read .. Only the mach 1 have that ratio.. It says only *****03-04****** with Factory 3:55 Gears
I don't think GTs came factory with 3:55 gears
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Old 07-20-2013, 07:52 AM   #12
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Ok you are talking about rear gearset ratios then not transmission ratios. Ford changed the overdrive of all the 5 speeds to .62 in 2001. Yes the Machs and Terminators got 3.55s GTs got 3.27s IIRC. Overdrive is still the same ratio in the transmissions though.
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Old 07-20-2013, 11:55 AM   #13
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Originally Posted by scottydsntknow View Post
Ok you are talking about rear gearset ratios then not transmission ratios. Ford changed the overdrive of all the 5 speeds to .62 in 2001. Yes the Machs and Terminators got 3.55s GTs got 3.27s IIRC. Overdrive is still the same ratio in the transmissions though.
Lol did you read the picture I posted ?
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Old 07-20-2013, 12:24 PM   #14
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Yes and its incorrect. After the mid year 01 change they all got .62 overdrives.
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Old 07-20-2013, 01:06 PM   #15
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I'm just taking notes. Thank you all for your knowledge.
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Old 07-20-2013, 01:18 PM   #16
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Like I said, would be much easier to just supercharge the 2V. Here's a link to the $1500 Vortech thread.

http://mustangforums.com/forum/pipes...-its-done.html
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Old 07-21-2013, 12:26 AM   #17
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Quote:
Originally Posted by scottydsntknow View Post

Machs also have the specific seats, the specific cluster, Mach rims, some other cosmetic stuff and the biggie is the 4V obviously. The 4V is a very nice motor stock and has a nice head start on the 2V but you have to factor in your conversion cost and what bolt ons you have, what will need to be changed etc... etc... In many cases its cheaper to go 2V and just supercharge it than it is to convert to 4V. You can build a Vortech kit with injectors and intercooler for under $2k easy and that'll max out the internals on either engine because all modulars except the Terminator use the same cast/powdered metal rotating assy rods/pistons.
Can you fill me in on how I can add a Vortech SC to my 96 SVT Cobra for $2K?

I thought I was looking at more like $4-5K easy.

Thanks, Spiney-Dave

---------- Post added at 02:26 AM ---------- Previous post was at 02:22 AM ----------

Quote:
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Can you fill me in on how I can add a Vortech SC to my 96 SVT Cobra for $2K?

I thought I was looking at more like $4-5K easy.

Thanks, Spiney-Dave
Sorry, I didn't see the previous post, I'll check it out. Thanks, Dave
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Old 07-21-2013, 12:32 AM   #18
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Quote:
Originally Posted by scottydsntknow View Post
Yes and its incorrect. After the mid year 01 change they all got .62 overdrives.
Lol !

---------- Post added at 01:32 AM ---------- Previous post was at 01:28 AM ----------

Quote:
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Lol !
Lol no 3:27 come with .67
3:55 Mach 1s only come with .62

Hahahahaha
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Old 07-21-2013, 07:52 AM   #19
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Originally Posted by Slow4V View Post

Lol !

---------- Post added at 01:32 AM ---------- Previous post was at 01:28 AM ----------



Lol no 3:27 come with .67
3:55 Mach 1s only come with .62

Hahahahaha
Do you really think Ford would special order a transmission from tremec with that small change in the over drive for the car they made up to keep interest up for the 05 changes....
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Old 07-21-2013, 11:36 AM   #20
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That's not right. After 9/2001 the GTs had .62.
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Old 07-21-2013, 05:38 PM   #21
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That's not right. After 9/2001 the GTs had .62.
Apparently he doesn't believe that for some reason or other. Only the first run of 3650s had a .67 overdrive gear, the rest have the .62 but his reposting of stuff he's read online obviously trumps ppl who actually have experience IRL...
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Old 07-21-2013, 08:16 PM   #22
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Quote:
Originally Posted by scottydsntknow View Post
Like I said, would be much easier to just supercharge the 2V. Here's a link to the $1500 Vortech thread.

http://mustangforums.com/forum/pipes...-its-done.html
I've tried going down this road and It wasn't successful. You can buy everything leading up to a supercharged setup but buying the head unit for cheap becomes a very difficult task. Head units for cheap and in good condition are usually being sold in the $1k area and if it's cheaper than that it's grabbed up before you see it or it's junk and needs a serious rebuild. I searched for two years straight and I gave up with no luck. People selling there kits or parts have caught on to this, I just want to give you a heads up and warn you your gonna be searching not jumping online tonight and finding all of this. I'm also not saying it can't be done but I tried hard to do it.
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Old 07-21-2013, 08:31 PM   #23
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Originally Posted by scottydsntknow View Post

Apparently he doesn't believe that for some reason or other. Only the first run of 3650s had a .67 overdrive gear, the rest have the .62 but his reposting of stuff he's read online obviously trumps ppl who actually have experience IRL...
Wasn't this brought up before on ME? I swear ive seen it here somewhere. Oh well, he'll figure it out one way or another lol.
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Old 07-21-2013, 09:13 PM   #24
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Originally Posted by jjsg09 View Post
I've tried going down this road and It wasn't successful. You can buy everything leading up to a supercharged setup but buying the head unit for cheap becomes a very difficult task. Head units for cheap and in good condition are usually being sold in the $1k area and if it's cheaper than that it's grabbed up before you see it or it's junk and needs a serious rebuild. I searched for two years straight and I gave up with no luck. People selling there kits or parts have caught on to this, I just want to give you a heads up and warn you your gonna be searching not jumping online tonight and finding all of this. I'm also not saying it can't be done but I tried hard to do it.
Low mileage S trims come up for sale fairly often on the Corral classifieds in the $600-$800 range, a T trim will run a little more. You also honestly don't need an intercooler on a stock motor with a good tune so you can nix that off the list to compensate some of the price a little. On page 37 of that build thread I believe the guy did use a T-Trim and wound up with a $2100 price all said and done with the intercooler and everything. This is still substantially less than you'd pay for a kit from Vortech or a TT kit or a turbo setup.

edit: Here is a current setup from June. Dude fount a good T trim on SVTP for $700. A lot of those prices are OBO and if you are seriously looking for a head unit hitting up all the biggest Mustang forum classifieds is the best way to go. Corral, SVTP, Stangnet, ModularFords, ModdedMustangs etc...
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Old 07-21-2013, 10:01 PM   #25
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Low mileage S trims come up for sale fairly often on the Corral classifieds in the $600-$800 range, a T trim will run a little more. You also honestly don't need an intercooler on a stock motor with a good tune so you can nix that off the list to compensate some of the price a little. On page 37 of that build thread I believe the guy did use a T-Trim and wound up with a $2100 price all said and done with the intercooler and everything. This is still substantially less than you'd pay for a kit from Vortech or a TT kit or a turbo setup.

edit: Here is a current setup from June. Dude fount a good T trim on SVTP for $700. A lot of those prices are OBO and if you are seriously looking for a head unit hitting up all the biggest Mustang forum classifieds is the best way to go. Corral, SVTP, Stangnet, ModularFords, ModdedMustangs etc...
I never could get corral to work every time I tried to post or message someone it wouldnt let me. It would tell me I didn't have access to do those things tried many times to fix it or find a solution to that problem. I gave up on that site. But what I would tell anyone trying to do a build this way, start at buying the head unit first.its the hardest part to get. I was planning on just doing a s trim and non intercooled going for safe 350-380hp. I just never had luck with many sites on getting a fair price on a head unit. Like everyone that was priced under $1k was needing to be rebuilt which would always make just the head unit and rebuild past $1000.
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Old 07-21-2013, 10:40 PM   #26
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I have no clue what was going on with the Corral and you getting onto it. You registered right? Popup blocker? Not even able to respond in the thread? Weird. I've been posting on there and buying and selling in their classifieds since 2001...
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