PDA

View Full Version : Hypothetically...could I put a DOHC 4.6 in my SC



SCobsessed
08-12-2003, 03:42 PM
I was thinking lastnight whilest tearing around.....It would be cool to have a 320 hp DOHC cobra engine in this thing. So im wondering if anyone knows, just out of curiosity.
--Will a DOHC 4.6 fit in a Super Coupe?...im assuming ill need to modify the hood
--Will it bolt onto the transmision?
I know Its an expensive fantasy.....but man those engines are wikked...and I would love one in such a sweet looking awesome handling car....i know 5.0 will fit..and that would be allot cheaper....but a 4.6 would be unique.

Keith
89 5speed 3.27 gears, exaust and intake done

Aaron Pedroza
08-12-2003, 04:14 PM
Could make it fit but you think our cars are hard to work on. The heads on those things are huge and you would have absolutley no room. I read some place that it is so tight in a Stang' that it is easier to drop the engine out from the bottom.

1QuikV6
08-12-2003, 04:25 PM
My Mom had a 97 Cobra with that 4.6. The dealer said it would be easier to unbolt the mounts and raise the engine in order to do a tune up. We could barely get plugwires on the back cylinders. I think if u want to do it then go for it. I think a nice V8 rumble would add to the stance of the SC. The SC should have been a Supercharged V8 all along.

Aaron Pedroza
08-12-2003, 04:30 PM
You could always cut up the wheel wells and have all kinds of room, otherwise stroke a 5.0 and save yourself some money.

DLF
08-12-2003, 04:48 PM
Originally posted by 1QuikV6
My Mom had a 97 Cobra with that 4.6. The dealer said it would be easier to unbolt the mounts and raise the engine in order to do a tune up. We could barely get plugwires on the back cylinders. I think if u want to do it then go for it. I think a nice V8 rumble would add to the stance of the SC. The SC should have been a Supercharged V8 all along.

BS! The spark plugs and wires on a DOHC go in the top of the valve covers.

007_SuperCoupe
08-12-2003, 04:56 PM
There's a guy here in NE that has put a DOHC engine into his bird. It's an engine out of a Mark VIII. And honestly, it doesn't look any more congested than the SC engine...Probably much easier to get to things in there, if I remember correctly. The cobra engine is the same size. If you're talking the '03 engine...you may need some minor hood mod, but I don't think so. Just remember, a 351W will fit with very little mod to the hood (to keep the FI) and a 460 will fit with a cobra r hood. There was no need to do any mods between the fenders on either of those...I'm pretty sure a DOHC 4.6 (even with the sc on the '03 model) will fit nice and neat.

fast Ed
08-12-2003, 04:59 PM
Lincoln Mark VIII cars had the 4.6 DOHC, same basic chassis. IMHO it would be easier to get a 4.6 SOHC T-Bird LX, and start with that for the conversion. Then you could use many of the existing mounts, linkages, and wiring harnesses, rather than trying to piece it together and / or hack up the SC stuff.

There are a few guys over on TCCoA with DOHC motors in their LX Birds, so it can definitely be done. Ford even did a few prototypes in 1997 with Eaton-blown 4.6 DOHC motors.



cheers
Ed Nicholson
SCCoO

Sandmanownz
08-12-2003, 05:05 PM
check this out a 94 T-Bird with Mark VIII engine:

http://www.geocities.com/speedracer628/Thunderbird.html

007_SuperCoupe
08-12-2003, 05:09 PM
Yeah, that's the one I was talking about...

SCobsessed
08-12-2003, 05:40 PM
I was thinking the 320 HP NA cobra engine...not the blown one...thats more than i need. I guess it would be difficult doing all the electrical and computer stuff...but then again i would need to do that to a 302 aswell.
Well i might have to look into this....it would be a cool project for sometime in the next year or so.
---still not sure if it will bolt up to the transmission....Im guesing it will right?
I guess it wouldent really be a super coupe anymore though would it.....ill have to start collecting SC's....im going to go buy a lottery ticket.

Keith

MIKE 38sc
08-12-2003, 06:58 PM
Well if my new SC engine turns out to be a reliability nightmare
I'm thinking about the big block.
I dont know....I think I'll call it a "More Super Coupe":D

007_SuperCoupe
08-12-2003, 07:55 PM
My thought was (instead of a big block) a blown 392. I'll call it the "SuperBird." Of course, I have to go back to the "muscle" years simply because, well, a blown 392...

JJanney
08-12-2003, 08:14 PM
I'd settle for a blown 302.

fast Ed
08-12-2003, 09:57 PM
Originally posted by SCobsessed
I was thinking the 320 HP NA cobra engine...not the blown one...thats more than i need. I guess it would be difficult doing all the electrical and computer stuff...but then again i would need to do that to a 302 aswell.
Well i might have to look into this....it would be a cool project for sometime in the next year or so.
---still not sure if it will bolt up to the transmission....Im guesing it will right?
I guess it wouldent really be a super coupe anymore though would it.....ill have to start collecting SC's....im going to go buy a lottery ticket.

Keith

The 4.6 and 5.4L modular engines use a unique bellhousing pattern, you would need to get a Mustang T-45 trans, or a T-56 6-speed, if you want to keep it manual, then adapt it to fit the car. Unless you're a good fabricator, this would be a tough go IMHO.


cheers
Ed N.

MIKE 38sc
08-12-2003, 10:03 PM
Hmmmmm..........A lightening motor! Yeah I know where one of those are. Think I'll give him a call.

Mike8675309
08-12-2003, 10:22 PM
Just throw a 460 in there with a carb.

it's already been done buy at least one SC owner.

MIKE 38sc
08-12-2003, 10:27 PM
Yeah I know but I have this buddy that owes me a favor. He offered me the motor once but I turned it down. Think I'll get it and put it in storage until I need it.

racecougar
08-12-2003, 10:49 PM
I'm actually in the middle of this engine swap right now. I'm putting a 4.6L DOHC in a 90 XR7, using complete wiring harnesses and EEC from a 97 4.6L SOHC LX. It's really not too difficult of a swap, I've certainly done harder ones.

-Rod

PearlBird
08-12-2003, 11:39 PM
Have you ever looked at the room in one of these older birds. Absolutey huge engine bay, because some of them came with v8's. I have a 1995 Sc and a 85' TC. Me and my dad are putting a 460 cobra jet and a c6 trans in the 85 for some good drag racing action.

MIKE 38sc
08-12-2003, 11:44 PM
Yeah a buddy of mine has a real nice 351W in his 84 TC that he races. Works real nice.

PearlBird
08-13-2003, 11:40 PM
Just exactly do you live? I know a guy with a 84' bird and a 351 windsor. His bird is red. I live in Silsbee, Texas, probably 1000 of miles away from you, but what if It was just a huge co-inkydink. =):D

sho taurus
08-14-2003, 12:16 AM
if i was gonna do a engine swap i would go with the blown 302 also.and i've been thinking about it alot lately since i can't get mine to idle for over 1 minute.i got the cobra r hood on mine so maybe even the 460...hmmmmm don't know :(

MIKE 38sc
08-14-2003, 12:25 AM
Originally posted by PearlBird
Just exactly do you live? I know a guy with a 84' bird and a 351 windsor. His bird is red. I live in Silsbee, Texas, probably 1000 of miles away from you, but what if It was just a huge co-inkydink. =):D
Yeah about 1000 miles. My buddies is a blue 84 Turbo Coupe that went through 3 turbo's and he decided to hell with that! Its Fast!

SCobsessed
08-14-2003, 12:45 PM
well its good to hear this can be done.
Hey Racecougar....what about bolting it to the transmission, howd you do that??.....could i just machine a new part for one end or another?

racecougar
08-14-2003, 01:06 PM
I'm using a 4R70W with the 4.6L bellhousing bolt pattern.

-Rod

SCobsessed
08-14-2003, 07:11 PM
Im not farmiliar with what a 4R70W is?? Ill guess it came with that bellhousing pattern?

thanks and yes i do plan to put this information to use:)

Keith

MIKE 38sc
08-15-2003, 12:03 AM
The 4R70W is the automatic tranny that came in later year models of the SC, its electricaly oporated by the comp so it must be used with the appropiate comp and wiring.