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Another Cam Question

I have the oppertunity to purchase the camshaft from a 1993 cobra mustang. The question I'm asking everyone is...Will this cam fit in non ho 5.0 engine without any piston to valve clearance issues?

Another Cam Question

Reply #1 –
the cobra engines actually have less lift then a regular h.o. cam because of the higher flowing heads. you fcan also get this cam from any 91-93 5.0 cougar bird.

it should clear fine, but you always need to check it first.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

Another Cam Question

Reply #2 –
Cool I thought it would work but i couldn't find any specs on the cam. Also if it has less lift than the stock H.O. cam, what would be the better choice??

Another Cam Question

Reply #3 –
Haystack,

Are you sure about that?  Everywhere I looked the Cobra cam has a higher lift across the boards.  This is about a concise of an answer as I could find for you:

Stock cam is 210 @ .050, Cobra is 208. Cobra has a tiny bit more lift, but also a wider lobe separation.

HO cam: Intake, .277" lobe lift (.443 w/1.6's, .471 w/1.7's) 116 degree intake centerline, 210 degrees of duration at .050". Exhaust, .278" lobe lift (.445" w/1.6's, .473 w/1.7's) 115 degree exhaust centerline and 210 degrees of duration at .050". This total cam has a lobe separation of 115.5 degrees and is ground with .5 degrees retard built in.

The 93 Cobra cam: Intake, lobe lift .282" (.451 w/1.6's, .479 w/1.7's), 115 degree intake centerline, 208 degrees of duration at .050". Exhaust, lobe lift .282" (.451 w/1.6's, .479 w/1.7's), 121.5 degree exhaust lobe centerline, 208 degrees of duration at .050" lift. This cam is ground with a lobe seperation of 118.25 degrees and has 3.25 degrees of advance ground in.

Darren

83 351W TKO'd T-Bird on the bottle


93 331 Mustang Coupe - 368 rwhp

Another Cam Question

Reply #4 –
my understanding was that its lower because of the better flowing heads and 1.7 rollers. I'm probably wrong, as I have been before. but I am fairly certain that.the 91-93 birds had the same cam.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com

Another Cam Question

Reply #5 –
Not sure about that cam being used in the 91-93 Birds but all of the Cobra specific websites have pretty much a consensus on the numbers I posted above. One post was supposedly a Ford engineer but who knows these days. Either way going from an HO cam to an OEM Cobra cam would be a complete waste of time for a street car.

Darren

83 351W TKO'd T-Bird on the bottle


93 331 Mustang Coupe - 368 rwhp

Another Cam Question

Reply #6 –
Thats messed up for me. I was wondering why there wasen't any mention of the cam only heads and intake.

Another Cam Question

Reply #7 –
All those cams are so mild it makes no difference. But the cobra cam is bigger and not by much. As i remember no PV issues. BUT CHECK IT. 

:hick::hick:
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

Another Cam Question

Reply #8 –
This is true. But I was looking to add alittle extra power along with heads and intake. I didnt want to touch the bottom end.

Another Cam Question

Reply #9 –
There are other cams that have been installed in an SO short block just Google it.  Every engine is different to you will definitely need to clay the motor and get PV clearances.



Darren

83 351W TKO'd T-Bird on the bottle


93 331 Mustang Coupe - 368 rwhp

Another Cam Question

Reply #10 –
No need to touch the bottom end!!!

PV clearance is like ATOM BOMBS. MILLIONS of people do not know how it works or how to check it. Clay is very good as posted above but people do not set the test up correctly. Example testing with a lifter that is incorrect. I have lifters that i modified to check this with the correct PRE-LOAD. The cam specks are another over LOOKED ITEM. Also as PV must be checked most do not check RETAINER to seal clearance. The 2.3 guys are naturist for over looking this. Changimg a cam is sometimes not cut and dry. Unless you have a lot of experience with cam selection.

The cobra cam is advanced by a couple of degrees so it will normally increase bottom end performance. Also CL specks will increase SWEEP COMPRESSION a lot if advanced a lot. So selecting a cam is not a walk in the PARK!!!!

Below is an engine that the customer was totally sure the cam had clearance. And was checked. But he checked it WRONG!!!!


I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

Another Cam Question

Reply #11 –
You could always fly cut the pistons if need be. Just for thatg added security

Another Cam Question

Reply #12 –
If memory serves me the cam clears quite well. Just saying!
I spend money I don't have, To build  cars I don't need, To impress people I don't know

HAVE YOU DRIVEN A FORD LATELY!!

Another Cam Question

Reply #13 –
cutting the pistons is an option. Thats not something I want to tackle myself. I do want to make sure whatever cam i get there will be no interference so i will be learning how to check wit clay. From everything I have found and what ya'll have told me it seems like this would not be a good choice of cam for what I want to do.