I know the mustang II communtiy is small so I'm hoping I can get some info from this forum. I've got a 78 II w/ t-tops. I'm going with a 4.6L SOHC BUILT modualr motor. My question is, does anyone know the guy that put a 2k3 cobra motor in a II? I've seen pictures on the mustangII.net, and wonder what all he had to do to fit that thing in there! I've already got a motor, computer, and wire harness.
4.6 in a II
- Thread starter specter
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Power Surge
Founding Member
fastmustangII said:
A 4.6 is quite larger than a 351 Megan. Matter of fact, it's about as wide as a 460
. Specter, I'm building a 5.4 Lightning powered 78. I'd be happy to offer any advice you need, but keep in mind that this is about as far from "bolt in" as you get. You'll have to cut the inner fenderwells and have custom headers run outside the frame. Everything else will need to be custom made or modified, from the oil pan to the motor mounts.
You can check out some of my early pics here:
Project ThunderSnake
there was a yellow hatch posted on this site a while back. it had a 96-98 cobra engine.
http://www.mustangii.net/46l_ii.asp
sorry about linking to another site but i couldn't find it here
http://www.mustangii.net/46l_ii.asp
sorry about linking to another site but i couldn't find it here
Here is another interesting fact for the 4.6L. In my last issue of Mustangs and Fords they discribed each block with heads, etc. The magazine said that the SOHC and DOHC measure the same size width wise. From my knowledge the DOHC are much wider ( someone shed some light for me ). CobraIILover, have you seen how far the 5.4 will stick out of the hood. I know that with an eldelbrock air cleaner my 351 stuck through my hood into the scoop. The 5.4 sticks up about three inches higher than a 4.6L if I'm not mistaken. When do you estimate that you will be done with your swap? By the way here is my email if you come up with some helpful hints Now I'll take alook at that link. Thanks again
[email protected]
Now I'll take alook at that link. Thanks again[email protected]
WOW that is alot of motor. That will sure make a statement going down the road. Did you have any problems with the weight difference, how did the suspension react to the extra weight? SO MANY QUESTIONS, SO LITTLE TIME!
Power Surge
Founding Member
Hehe, it's going to be a neat project. Actually I'm building the car to be NHRA legal for 9.50s. I plan to compete in NMRA Modular Muscle class next year.
Even though the DOHC heads are twice as wide, the extra width goes inwards, towards the intake. So the overall engine width is the same. You should be able to answer your fitment questions on the 5.4 from my pics. As for ride and such, the car is not at that stage yet.
Even though the DOHC heads are twice as wide, the extra width goes inwards, towards the intake. So the overall engine width is the same. You should be able to answer your fitment questions on the 5.4 from my pics. As for ride and such, the car is not at that stage yet.
Power Surge
Founding Member
Mstng2
Founding Member
I'll kick in with a thought on the 351W/headers swap There is a neat little mod you can do to make your 351W fit nicely with headers. What your do is center the engine by removing the motor mounts and useing a block plate on the front. This frees up both sides for headers. There are some caveats:
1) PWR steering is removed... OR custom mounting is needed and you lose the washer resevior.
2) Trans must be centered also. (no problem reverse and drill new holes in the crossmember.)
1) PWR steering is removed... OR custom mounting is needed and you lose the washer resevior.
2) Trans must be centered also. (no problem reverse and drill new holes in the crossmember.)
I've already got the 4.6 and the computer/wiring. I want a unique II and the 4.6 is going to be my starting point. The first motor that the car had (when I bought it) was a 351W. It jumped time and wouldn't crank so I pulled the motor and dropped in a 302 I had in a parts car II. I want a daily driver 400hp car and still be able to get great fuel economy.
76_Cobra_II
Member
Blue Thunder
Active Member
specter said:I want a daily driver 400hp car and still be able to get great fuel economy.
I have a daily driven(almost) 332 stroker in my II that makes somewhere over 500hp and gets 8mpg with a C4/5000 stall/4.10 gears. Is that great economy? (I think so)
Blue Thunder
Active Member
Thinkkker said:
I read somewhere that the 4.6 motor is at least as wide as the mighty BOSS 429. (It's pretty damn wide)
