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?
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.
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??
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
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.
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
Thats messed up for me. I was wondering why there wasen't any mention of the cam only heads and intake.
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:
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.
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.
(http://i786.photobucket.com/albums/yy142/dbrune_83/IMG_2128.jpg) (http://s786.photobucket.com/user/dbrune_83/media/IMG_2128.jpg.html)
Darren
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!!!!
(http://i740.photobucket.com/albums/xx46/proguns/001-120.jpg) (http://s740.photobucket.com/user/proguns/media/001-120.jpg.html)
You could always fly cut the pistons if need be. Just for thatg added security
If memory serves me the cam clears quite well. Just saying!
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.