Looking for feedback on this. I'm wondering if this would be a good upgrade for running heavy spring pressure like double springs.

Here is a link: http://www.compcams.com/information/...ionupgrade.pdf

 

Its a good upgrade in general if you're going to use stock rockers, regardless of spring choice.

 

I did it on mine and I don't have to worry about needle bearing ever falling out again. It's great and I highly recommend them. Plus I run double springs good to .670 lift with out problems.

 

did anyone have to modify the stock rocker bolts? My engine builder said he had to put an extra 1/4 inch threads on the stock bolts during assembly to make them work properly. Something about the way the trunion seats . Not tryin to hijack just an issue with the product I need answered and will shed light on your decisions of purchase.

 

Is this something you change yourself,or do you send them to Comp to change?

 

I have some instructions somewhere that give you the dimensions on a jig so they press in the right distance. But many have used a vise and a few sockets on the sides to press them in. Problem with this is one small press to much you bend or dent the bearing housing and cause it to drag or bind when rotating. Have them done professionally or make the jig if you have the supplies it will save you in the long run.

Here is the link to the instructions at the bottom is the dimensions on the jig.

http://www.compcams.com/v002/Instruc.../COMP4-126.pdf

 

I have mine done
Running them with a 26921 comp spring w/ .610/.617 lift

 

I have done 6 sets in my jig and press I could do them for you pm me if interested

 

I have the MS4 cam. Would you guys recommend this or should I just get the Morels? It just hurts spending so much on a lifter.


DM

 

this thread is about a rocker not a lifter, sorry

 

lol, how the hell did I mess that up

Sorry about that, lol, I know I was looking up info on lifter..hmmmm


DM

 

Anyone here doing this? I am going to get a set, and do my spare rockers, but I dont have the means to do it myself.

 

there was a instruction sticky with pics for this conversion.do a search ,you mite find it.

 

It's easily doable with simple tools acquired. Like the persion mention above me, there is a sticky for DIY.

 

You have a 2002 C5. GM had lots of problems on the 98-00 LS1's in the F body's for sure. I believe GM revised the rocker design in 2001 for all LS motors.

 

since I started this thread I did the trunion upgrade and I'm glad I did it. Make sure you use the bolts that come with the kit and not re-use the stock bolts.

 

so is this a recommended upgrade or a must upgrade when installing new heads with stock rockers?

 

recommended upgrade

But if you do a search on here you will find threads where people are finding the tinny roller bearings in the oil pan. For the money and about an hours work it a good investment.

 

Yeah, I found a damaged rocker after heads cam. Took over a year, but it happened. Now I was going to upgrade to Yella Terra, but TSP told me not to bother and just save the cash and upgrade the trunions.

 

this will be one of my winter projects.
can anyone recommend a supplier who will ship the parts to the Uk for me?
i havent yet found anyone who will ship a set of rockers already converted so will buy a kit and have a go.