what cam??

hey guys, Ive posted in the past about my engine. its a 65 327/275 hp engine, long story short, the cam lobes are wiped. So my question is what would be a good cam to put in it.. it has a munice m21 trans, 4.88 gears with warn overdrive. it has the camel hump 462 heads. I would like to have the best of both worlds.
Id like it to be sorta hot for the street, but maintain good low end torque for off road... any idea's or am I dreaming... I was thinking of putting the 268H l79 cam in it. what do you think. thanks.

 

I'd recommend a Comp 268
http://www.compperformancegroupstor...e_Code=CC&Screen=PROD&Product_Code=CL12-210-2
I used to work in a speed shop & sold tons of these & always had good results.
Keep in mind that this was 15 years ago, so there may be something newer & better out there.....

 

Just call Comp Cams, they have a really good help line.

As to your statement about wanting it sorta hot for the street, and good torque for off road, check into the high bleed down lifters they have, and how that can effect the cam performance. You might be surprised.

Good luck.

 

Been there, feel your pain. SBC’s are notorious for flattening cam lobes, went through a few bump sticks myself before finally just giving up on flat tappets all together and converting to roller.
I’m not recommending this route but I do have a broken in cam and lifters sitting on a shelf, it’s a Comp Cams Magnum 292H with Comp Cams anti-pump up lifters that are bagged and tagged as to exactly what cam lobe each lifter rides on that I’d be willing to sell for about half the price of new.
While this cam will make big power in your engine it’ll also have a choppy idle and you’ll have to use a PCV valve to come to grips with the idle. Plus you would have to take a look at your valve springs and retainers setup to ensure they can handle at least .501” lift.

 

Download CompCams camquest program and start poking in the numbers. About the only way you can get close to having your cake and eating it too is with a roller. If you still want to use your Jeep for a Jeep, I strongly suggest you keep the duration to something less than 230@.050. As noted above, make sure your springs can handle whatever lift you get.

I once ran a Sig Irson 292 cam in a 350 (LT 1) -was very impressive above 3k but not worth a damn below that-not what I wanted in a Jeep.

 

Solid advice, and yes this CC Magnum I’ve got would be just about the same, a bit of a dog off idle but pull like a freight train above 3 grand.

 

thanks guys, I will check out the comp cams site. As duff mentioned I do want to use the jeep for what it is, but with this engine in it, Id like to keep it sorta hopped up too.. Im not wanting a jeep that will run with the street cars, ( well, or course I do.) just something with some good power thats fun to drive off or on road. wont be until the end of the month until I will be buying the new cam so I have some time to shop. so do you think the comp 268 cam would be too much for what Im wanting.. I know a lot of people put them in the 327's

 

As I mentioned before, be sure to look into the lifters too. They can make the cam have a very different low end quality, and still be pretty exciting at higher RPM's.

Remember the Rhodes lifters from the 80's or 90's era??? Comp makes the same design, and will tailor the lifter to the desired end result. They are not magic, and will not cure all ills, but surprisingly effective for changing things around like you want.

Been there, done that.

 

will do mike. thanks for the advice, I will def look into those lifters. I think the cam corveeper has would be way more than Im looking for, but thanks for the offer.. I really dought the jeep will ever see anything over 4500 rpms.

 

UPDATE! started taking things apart for the cam change and this is what I found..

Timeing chain: was extremely loose

Lifters: half of them were nice and flat, about 5 or so were domed inward, (concaved) the worse coming from the rockers that were barely moving when we took the covers off with the jeep running.

Question: Could it be just bad lifters and not the cam. That sure would be nice. If so, I still have to take the cam out to get the right lifter don't I?? thanks for you help and advice.

 

Replace your cam and lifters. The concave lifters will have wiped out cam lobes.

 

Ok, thanks, wishful thinking. should the old cam have a stamping on it somewhere as to which cam it is? Ok took the cam out and the only numbers on it are GM25 6930 G12. I cant find any information on this cam anywhere.. anyone have any idea?

 

Take a look at this: http://www.camaros.net/forums/showthread.php?t=171425

 

thanks man, that what I was looking for.

 

Oh yea, did it look anything like this?



Or these?



Trust me, your cam is wiped out.

 

yeah, thats them. just not quite as bad. trying to find out what cam is in it. so far I seem to have trcked it down to a 300hp(3896930) or 929 cant remember hp rating on that one, think it was 350

 

I don't know about SBC, but on SBF's, I've never had bad luck with Lunati's Voodoo series, when I was looking to build torque on a Small-ish (408cid and under) Ford....

 

Judging by the link colojeepguy posted I think you’ve got it identified right here.
Regardless of the power output identifying the cam at least gives you an idea of what lift your heads are set up for. Look for a cam that keeps lift in the .400” area, with duration that puts the power where you want it in the rev range and follow proper cam break-in procedure or you’ll get to do this all over again.

 

I’m running a Lunati Voodoo roller conversion cam and couldn’t be happier with it. Though I will admit it’s a bit of a nasty cam for a Jeep and while the engine doesn’t like being given a load from the 1000 RPM idle to about 1500 RPM, once above that it’ll pull itself along quite well.

 

Thanks corveeper, don't want to do it again, thats for sure. Do you think I should replace it with the same type cam that is in it. would that be the simplest way? Or would you bump it up a hair. Ive been checking out the 268H cam