Robby1870 Posted March 11, 2003 Report Posted March 11, 2003 Alright, Im saving my pennies (and yes I really mean pennies) for these bad boys this summer. Im gonna go with the 1.6:1 ratio ones, stock is 1.52:1. I contacted these guys earlier and they said that if I run these new rockers, with my old pushrods, I would run the risk of damaging them. I dont much believe them, I think they just want to make more money off me. So, what do you all think, am I going to damage my stock pushrods with the new rockers. And, what about Springs?? Will they be damaged in any way?? I cant see how they would, but Im not for sure. Let me know about any comments or info you all have. Heres the site for these rockers: http://www.compcams.com/information/Products/RockerArms/MagnumRoller.asp Look at the ones for the Chevy 60* V6 173cid (aka 2.8 ) Robby Quote
Robby1870 Posted March 11, 2003 Author Report Posted March 11, 2003 somewhere around $140.00 depending on where I get them from. A little more than $10 a rocker. Robby Quote
mfewtrail Posted March 11, 2003 Report Posted March 11, 2003 somewhere around $140.00 depending on where I get them from. A little more than $10 a rocker. Robby a guy on ClubGP ("pipedope" to be more specific) is selling his 1:6:1 ratio roller tip rockers and chrom moly pushrods, he only had them on his car for a short period of time I believe, might be able to get a deal from him since he did the L67 swap and doesn't need em anymore Quote
Robby1870 Posted March 12, 2003 Author Report Posted March 12, 2003 Thanks for the info, man, the only problem is, I dont have the money now. But, I will ask him anyway. Thanks Robby Quote
Intlcutlass Posted March 12, 2003 Report Posted March 12, 2003 If you go through Summit, you can get em for $112.00 Quote
NeverSayDie Posted March 14, 2003 Report Posted March 14, 2003 I'd say replace those pushrods too. It's gonna be alot of extra stress on all your valvetrain. If a lifter were to sieze just for a split second...eeewww Quote
SaberZ Posted March 14, 2003 Report Posted March 14, 2003 When doing anything to an engine, u want to replace components a mod is going to stress. If you do it to a brand new car right away i think it would be fine. But with older cars doing rockers, he migh tbe right.I read an article somewhere(i think mopar magazine) that some guy was rebuilding his engine and even had his rods inspected (for abnormailities) and reused them. They stress fractured not even a week later. I'd get an estimate on the rods an see if its feasible. You want to always be careful doing these upgrades. Quote
Robby1870 Posted March 14, 2003 Author Report Posted March 14, 2003 Guys thanks for all the help, I have decided to buy their rocker arm and pushrod kit for my car. Its only $157 from them, only $17 more for the 12 pushrods, so I figured thats not too much, and the more I thought about it, y'all are right. Thanks for all the help. BTW, Comp Cams did tell me that the stock valve springs would work just fine. I just cant wait to get them on, I hope they work good, they told me 10-15HP on a stock motor. I just got to save $100, and they'll be mine. I was planning on changing valve cover gaskets, cuz one of mine is leaking a little and cleanin the motor real well, so I figure, since Im gonna have the top of the motor apart, why not upgrade? Thanks again. Robby Quote
eclipse5302 Posted March 14, 2003 Report Posted March 14, 2003 Did they say they'd work on the 3100 motor? If so, that would make that valve train that much better. I don't see why they wouldn't, I think the rockers are the same. At least they look like it. Jason Quote
mfewtrail Posted March 14, 2003 Report Posted March 14, 2003 Did they say they'd work on the 3100 motor? If so, that would make that valve train that much better. I don't see why they wouldn't, I think the rockers are the same. At least they look like it. Jason check out the link in your Cam thread Also, this might interest some of you, these guys http://www.sheerspeed.0catch.com/SheerSpeedProducts.html offer a few aftermarket products that might help some of us out. 8) Quote
Robby1870 Posted March 14, 2003 Author Report Posted March 14, 2003 Did they say they'd work on the 3100 motor? If so, that would make that valve train that much better. I don't see why they wouldn't, I think the rockers are the same. At least they look like it. Jason I didnt ask them, but like you said, its looks like it. All though, 3100 heads are different, I think the valve train is the same. Robby Quote
Robby1870 Posted March 14, 2003 Author Report Posted March 14, 2003 hey, mfewtrail, that sight has some good stuff. Im interested in the shift kit for my 4T60. I sent them an email, inquiring about the specifics of the kit and when I get some answers, I'll post them incase anyone else is interseted. Robby Quote
Guest Posted March 14, 2003 Report Posted March 14, 2003 Eclipse, if you learn anything new, let us know, I am wathcing this thread closely as well. And of course it will be redundant, but yes, repalce the pushrods at the same time. I know the heads are different, one has pushrod guides, and I think the newer 3100 does not have guides. There was a link I found that showed the differences of the heads, I think it was on this sight in a thread, but can't find it yet. *has a ton of cash for a tax refund, looking for things to do now MMWAHHAHAHAH!!!!* Quote
mfewtrail Posted March 14, 2003 Report Posted March 14, 2003 Robby, I say if you want to wait a little longer and save some more pennies, just do the 3400 top end swap which will give you a greater gain as the 3X00 heads flow a lot better. I'll find the write-up that Chris(GPXSS) wrote on it if you are interested in seeing what all is involved. Its a good bit of work, but well worth it IMHO. Quote
Robby1870 Posted March 14, 2003 Author Report Posted March 14, 2003 Yeah let me see that right up, so I can see what is involved. If its not too much work, I may just do that. Robby Quote
Guest Posted March 15, 2003 Report Posted March 15, 2003 is the 3400 top end better than the 3100 top end? Quote
Robby1870 Posted March 15, 2003 Author Report Posted March 15, 2003 3400 heads flow better than 3100 heads. They have the same valvetrain, Im pretty sure. Robby Quote
Brian P Posted March 15, 2003 Report Posted March 15, 2003 correction, 3100 2000+ are the same as 3400 96+, heads and intake, generally Quote
NeverSayDie Posted March 15, 2003 Report Posted March 15, 2003 Be careful if you decide to replace valve springs while you're in there. I ordered a nice new set of springs and retainers from crower, that were supposed to work on the 173, but they wouldn't clear the shims right. Now I've had my springs too long to return then and I'm screwed Quote
zeroburn Posted April 10, 2003 Report Posted April 10, 2003 Here are the directions and part #'s http://www.ny-jbodies.org/forum/library/How2/2.2rockerarm.htm it was writen for the j body platform, but the 2.8 and 3.1 are w bodie engines too. I hope this helps and i dont get flamed, lol. Quote
Robby1870 Posted April 10, 2003 Author Report Posted April 10, 2003 Here are the directions and part #'s http://www.ny-jbodies.org/forum/library/How2/2.2rockerarm.htm it was writen for the j body platform, but the 2.8 and 3.1 are w bodie engines too. I hope this helps and i dont get flamed, lol. Thanks for the reply, that is good info. However, Comp Cams themselves told me that the stock springs on my 92 3.1L would work fine. I was gonna do new pushrods anyway. They also told me that nothing else had to be done, (i.e. guide plates and new studs). They said that the rockers were made to bolt right up with no other modifications. I sent 3 or 4 emails to them to verify all this and they agreed and said, that all I would need would be pushrods. Robby Quote
Robby1870 Posted April 10, 2003 Author Report Posted April 10, 2003 Zeroburn, I just sent you an email, saying the same thing, I know you arent on here much. So, since your on now, you can disregard it. Robby Quote
zeroburn Posted April 10, 2003 Report Posted April 10, 2003 The guy that wrote the directions was not clear on which years the studs would work with out modifications. He has a 1992 Pontiac Sunbird GT with the 3.1 But from what i remember reading from a post he made the correct studs were from a 2.8. you can read about his car here http://www.j-body.org/members/colin/cars/1/ you might be able to contact him and ask him your self. or you can use the part # from the link i gave you with the directions on the studs and ask a dealer which engine they came from. If you have any more questions, email me or you can visit my site at http://www.ny-jbodies.org and post away! Quote
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