Cobra engine questions

[Kris]

I have a few questions about the Cobra motor.

I have a 95 Cobra motor swapped into my 94 GT, I bought it this way.

I was told different upper and lower intake manifolds, and a different cam. But, I see that there is only a 15hp difference.. So, apparently these didn't make much of a difference.

Also, I was looking at GT40 manifolds, do these flow alot better than the stock Cobra manifolds?

I guess what I'm asking is; where do the manifolds and cam fall in line when it comes to aftermarket parts and such? I don't wanna buy parts that are only a minimal upgrade to what I have I guess :dontknow:

 

[brad94GT]

the cobra upper and lower is a good intake. buy some gears if u dont allready have some

 

[stang94X]

the cobra motor also differs from the gt by the heads, it has the cast gt-40 heads which are a good mild upgrade from the stock gt e7's, the cam is a little different, it has a longer duration to it and a little more lift but the cobras; they have 1.7 roller rockers and the gt's have a cheap stamped steel 1.59 rockers, the throttle bodies on the cobra are 60mm, gt's are 52mm or 56mm or something like that in the 50's, cobras have 24 lbs injectors with a little better fuel pump and the gt's have 19 lbs with a crap pump, those are main differences and cobras are a bit under rated, they do make quite a bit more power than the gt's and a lot than the automatic gt's

if you just want a good bang for buck deal and you havent done gears yet then a set of 3.73s or even 4.10s would make a big noticeable difference

as for the intake question, the aftermarket gt-40 intake does flow a bit better than the stock gt-40, but the stock cobra is good enough

i wouldnt waste time with a intake and cam until a good set of aluminum heads are bought, the intake is good enough and if you changed it to an aftermarket one you probably wouldnt really feel a big difference, but a good set a heads you will and then it is a good time to change to something like the edelbrock rpm 2 intake, i wouldnt even bother getting the aftermarket gt40 unless you get a damn good deal on it and then take it to have hogged out and port matched to the heads

same thing goes with the cam, its good enough until a set of heads are bought, but also with a good cam and a stock cobra motor you will probably feel a good difference but nothing in the amounts that a set of heads will give you, and if you think like i do then if you plan on doing a cam you might as well do heads cause they have to come off to put a cam in and you might as well do both while youre ripping everything apart

and the stock cam isnt even comparable to a good aftermarket cam, there are too many to list of good cams out there that will make more power and a custom grind one in my opinion is the best way to go, but like i said you will feel a difference with a good cam but nowhere as is if you had a good set of heads

 

[Kris]

Thanks a bunch!

Yea, for now, I just want to do some mild things... I've done a gear set before, and that will my the car's 1st mod. I'm debating on whether to go with a 4.10 or 4.30 gear set.
I don't drive much on the highway, and I plan on taking the car to the track alot (as long as it holds up).

Then, long tubes, O/R x pipe, muflers/dumps.. A short throw may also be in order... I'm not liking this row boat shifter at all lol

Well, I didn't know there was that much of a difference between the 2 engines.. that makes me pretty darn happy.

 

[Venom351R]

I agree there is no need to upgrade your intake from the Cobra. Its a very decent intake that will work well with lots of other applications. If you do decide to upgrade to a GT40 be sure to get the real GT40 w/ the tube runners not the cheap explorer GT40 intake, that would be a step backwards in the wrong direction.

The Cobra motor is a good base motor to build up from. If you want to upgrade anything I would work on the heads for now then perhaps the cam. The intake will be sufficient for awhile until you start to get into boost applications and even then Ive seen plenty of 500RWHP Mustangs running Cobra intakes.

 

[BlkoutGT]

You should probably find out for sure that your engine is infact a cobra engine, check the casting numbers. Just so you know for sure
what you have to work with. And Im pretty sure the cobra intake and the GT40 are have the same design, the difference is the
GT40 is cast aluminum and the cobra is cast iron. I could be wrong though, But I do know for a fact my GT40 upper and lower are
both pretty light campared to the factory stuff!

 

[LAFENATU]

Easy way to tell if your car has a real cobra motor.

- Look at your valve covers..are they black and stamped COBRA on them?

- Are your injectors orange or blue?

- Do you have an oil cooler?

- Look at the front of the heads, see if you have 3 verticle lines on them.

 

[OnyxCobra]

there is definitely a much larger difference than 15hp. There's about a 30whp difference, but the stock Cobra engine with bolt ons and tuning has 270ish WHP potential.

Hopefully they didn't put a Cobra intake on the motor and say it has a full Cobra engine, that would suck.

 

[Kris]

Well, the manifold is a cobra, and there's a label on the drivers side valve cover that tells where the Cobra engine was built... I'll take a look and see if what was stated, meets what my engine has... I really hope it's a Cobra engine... I'm guessing my fuel pump is just a stock GT pump....

 

[Kris]

These are the only engine pics I have for tonight, as I took them and posted them here bc I had some questions.. Can't really tell much...

 

[OnyxCobra]

I'm pretty sure the Cobra and GT shared the same fuel pump.

 

[Kris]

It needs to be daylight here, I'm anxious to see if my engine is actually a real Cobra motor... Kinda nervous..
Is it normal that my car went 14.09 @99.51 on drag radials and it's bone stock other than the trac lok replaced?

 

[95 svt cobra]

Your intake is going to be good up to about 350ish HP. At least thats what FRPP rates them at anyways. So until you do head work, IE porting, alluminum heads or some nice AFR/trick Flows, i wouldnt waste time really on a cam. You can actually decrease preformance without proper airflow. If you want now wow, get some gears. 4.10's will wake that biotch up quick. And they are cheap and available anywhere. the expensive part is the installation if your not confident enough to do it your self. I really dunno what to tell you about your cobra motor, if you have an oil cooler, which judging by the pics it doesnt look like it. blue injector tops, your TB is a cobra TB it has the same stamp number as mine i believe, 65mm BTW, so unless someone did you dirty and just put the intake on you should be ok.

 

[95 svt cobra]

It needs to be daylight here, I'm anxious to see if my engine is actually a real Cobra motor... Kinda nervous..
Is it normal that my car went 14.09 @99.51 on drag radials and it's bone stock other than the trac lok replaced?

Hmmm that doesnt seem too far off, i know stock cobras can hit 13's. My buddies GT had shorties and a CAI and he went 15.2 which i thought was funny at the time.

 

[Kris]

Well, I just plan on long tubes, x pipe, dumps, cai, 4.10's, and some nitro... It should be a fun car then. If I can make this car go 12's on pump gas and only bolts on's and some spray, that's my goal. A fun street car that runs good at the track.

I've done a gear install before, so that's to my advantage.

Also, when I looked, it seems this car had been hit in the front from what I can tell.. The bumper was great, the hood latch doesn't work good at all, and i can see a dent in a crossmember.. Oh, and the core support is new. So, I'll check for an oil cooler.. Is there any way it coulda been bypassed from an accident?

 

[vermilion]

could always change the k too and shave weight. lithium grease could fix the latch.

 

[94kingcbra]

do the valve covers say COBRA on them?

 

[94kingcbra]

Sorry did not see the post above, if it has the stock valve covers I'd say you are in good shape. Where did they get the motor from?

 

[Venom351R]

The color of your injectors and the Valve covers will tell you what the motor is

 

[Kris]

Ok, I snapped a few quick pics... It's gloomy and raining here so they aren't the best quality.

I couldn't look at the head, bc I wasn't sure where exactly to look, and I really couldn't see much.
I have no idea where the engine came from. The guy I bought it from said he bought this car, threw a rod in that motor, so he bought this engine from a friend, and had a shop install it, told me it was a direct swap.

So, here are the pics...

Injectors.. Blue= good?

Valve covers, drivers side had this label on it.

This is in front of the radiator, it's empty.. The radiator is new, and most everything up front looks like it was replaced, which tells me it was in an accident... Is it possible that they bypassed the oil cooler being the car is a GT? Should I get an oil cooler for it?

I'm not able to look at the block... It's winter here, and the car sits on my side yard with a cover over it for now.