First off I would like to say i am sorry , i know on other forums it is usually customary for your first post to be a pic of your truck. Sorry to say i do not have a pic of Savannah. That will change.

Second thing is hello everyone i have been looking through the threads and there are some pretty d#%n knowledgable people around here.

Now my question. I have 74000 miles on my truck and my lash adjusters are stating to get noisy so i am going to change them. I also figured while i was at it i would put the HO cams in. When i mentioned this to my pops (who BTW is one of the best mechanics i have ever met) he suggested against it and told me that the lifts on the new cams would create a higher compression and could cause my piston rings to unseat resulting in blow by. Has any one changed the cams on their 4.7 with as many miles on the block (or more) as mine with any issues of piston rings unseating or any other oil blow by probs? Should i worry about it or just go with the HO cams and be done with it?

Any opinions would be greatly appreciated and thanx in advance everybody.

 

yep that would be...me ! around the same mileage, i put h/o 's and they are actually (recommended) if anything by anybody here ......they will not hurt a thing , and thats from personally having them

 

If you were going to go to a more aggressive cam, 206 or 212 I could see it, but the H.O. Cams, I can't see it being an issue at all...

 

i agree....and in another forum there are big debates to whether the 206 and 212's are good for our truck over H/O's anyway.. but i agree with hammer

 

forgive my ignorance on the issue but please explain why 206 and 212's are "not good" for our trucks. thanks

 

I'm pretty sure I know where that debate would be, I'll have to check it out.
I've got a pretty good idea a certain someone who sells the H.O.'s is behind that.
But believe me, I've seen actual dyno's and heard the lope from all three (and the 212x as well). And don't forget that I have the H.O.'s in my Grand Cherokee. But there is no comparison, the gains from the H.O.'s are the least of the bunch by far.
That's not saying they are not a worthwhile mod by any means, though. The other cams need much more modifications to work where the H.O.'s are basically plug and play and really do wake that 4.7 up a good bit...

 

i have been to air rams website and the specs on the cams seem out of wack. idk if someone else was inserting the info and messed up or what but check it out. im not trying to point out faults i'm just trying to understand.

 

H.O. camshafts add 25 hp, well thats the round about number. I suppose the next step up would be 206? How much hp more is the 206 and 212, anyone. I was going to go H.O. but now seeing this, I might go 206 all the way.

 

Thanks for the replies everybody. I didn't think the HO's would be a prob, but i would rather ask than find out the hard way.

My plans are the HO cams, headers, CAI, and cat back exhaust, and finally a programmer.

Again thanks everyone for the info......i guess now is to order the lashadjusters and the cams.

 

Let me know how the H.O. cams are. I am very interested in putting them in. Probably be a few months, but I'd like to do it before summers end.