Merry X-Mas to ME! Roller Rockers arrived...
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running 45's.
One question though: Bob Legere if your listening...notice the the stud girdle, I have only 4 of the nuts that fit on (thru) the girdle. Is this correct? Or did Chris forget the other four? Are only the center 4 used?? ahhhh!!!
Wouldn't happen to have a photo of a similar set up installed would you?
One question though: Bob Legere if your listening...notice the the stud girdle, I have only 4 of the nuts that fit on (thru) the girdle. Is this correct? Or did Chris forget the other four? Are only the center 4 used?? ahhhh!!!
Wouldn't happen to have a photo of a similar set up installed would you?
Yes, there should be 8 of the polylocks.
I have some pictures of the Cam Effects roller rocker setup on my web pages at http://homepage.ntlworld.com/david.jackson17/eng2002_cylinder_hd.htm
I have some pictures of the Cam Effects roller rocker setup on my web pages at http://homepage.ntlworld.com/david.jackson17/eng2002_cylinder_hd.htm
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499 Posts
Hey notavette, My name is Samdog...I presently am the proud owner of ,to my understanding, the only motor fitted with a roller cam and roller rockers produced by Chris. First ,the stud girdle is right. Second,it did take a little while to get this together,but let me tell you it made a big difference. I have a 2.4 .80ths over making it a 2.5 with Mr LeGere custom porting and custom pistons. It was strong before, but after Chris's roller cam it is amazing.The problems I have now are not enough brakes or suspention Cam Effects Have produced state of the art parts for a somewhat less than main steam car. Once this project is complete there will be many pleased Opelers out there.
Cam Effects Have produced state of the art parts for a somewhat less than main steam car. Once this project is complete there will be many pleased Opelers out there.
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5,564 Posts
Polly Locks
I read somewhere that Chevy 60 degree V6s have the same 9mm thread on their rocker studs. If so there must be polly locks around for them that may be able to be modified to fit.
Just a thought - ask if the other four are on the way!
I read somewhere that Chevy 60 degree V6s have the same 9mm thread on their rocker studs. If so there must be polly locks around for them that may be able to be modified to fit.
Just a thought - ask if the other four are on the way!
I think they are something like stock 3/8" threaded polylocks like on the Crane Web Site at http://www.cranecams.com/master/ranuts.htm (near the bottom), which have then been partly re-threaded to 10mm (x1mm, fine), but don't quote me on the actual thread sizes.
Certainly the set screw end thread is imperial, and the rocker stud end is metric.
Certainly the set screw end thread is imperial, and the rocker stud end is metric.
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5,564 Posts
10mm X 1.0mm pitch
They are the ones - the Opel rocker stud thread is 10X1.0mm
I guess Crane did the "hybrid" thread thing because the metric fine lock screws were not available easily.
Rally Bob mentions them in a thread called - "Rocker Arm Locking Nuts" Seems they can be used for the standard rockers too but may need a hardened washer under them.
They are the ones - the Opel rocker stud thread is 10X1.0mm
I guess Crane did the "hybrid" thread thing because the metric fine lock screws were not available easily.
Rally Bob mentions them in a thread called - "Rocker Arm Locking Nuts" Seems they can be used for the standard rockers too but may need a hardened washer under them.
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1,796 Posts
more bad news
Did that set of rockers come straight from Cam Effects or from TGSI? The reason I ask is that you need a few more parts to put it on you car.
At a minimum you need whatever was decised upon to make the top of your lifters flat for the roller to roll across to make it work. If you want to install a valve cover as well, you'll need a "shim" of sorts to go between the valve cover and the head to give clearance for all that purple goodness.
You could just give up on them and send the parts to me. After all your car runs the way it is, this has been so much trouple and all, I didn't get in on the group buy in time, and you realy don't want to try to get the valve cover over the stud girdle in a GT. I'd even go so far as to take your partial kit off your hands for, say, 70% of what you paid for it. See it's that easy to get rid of the hassles associated with those roller rockers.
Did that set of rockers come straight from Cam Effects or from TGSI? The reason I ask is that you need a few more parts to put it on you car.
At a minimum you need whatever was decised upon to make the top of your lifters flat for the roller to roll across to make it work. If you want to install a valve cover as well, you'll need a "shim" of sorts to go between the valve cover and the head to give clearance for all that purple goodness.
You could just give up on them and send the parts to me. After all your car runs the way it is, this has been so much trouple and all, I didn't get in on the group buy in time, and you realy don't want to try to get the valve cover over the stud girdle in a GT. I'd even go so far as to take your partial kit off your hands for, say, 70% of what you paid for it. See it's that easy to get rid of the hassles associated with those roller rockers.
I was unaware of the "mod" to the lifter top. I got them directly from Cam Effects by the way. I emailed Chris already. I'll even give him until early Jan to respond before I go out on my own to make these work. I just wanted to get a head start. Thanks for all the info everyone.
Check out my web page at http://homepage.ntlworld.com/david.jackson17/eng2002_cylinder_hd.htm It shows how to make an alloy rocker cover fit over the the Cam Effects rockers and stud girdle without a shim, and how to make up some flat top lifters from a set of Opel hydraulic lifters and a machined flat top insert.
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5,564 Posts
Crane GM V6 Rocker Studs
After looking through the Crane Catalogue (?) it appears that they use STANDARD 3/8 X 24 tpi rocker lockers by having a SPECIAL stud.
The stud seems to have 10 X 1.5 mm thread on the end that goes into the head and 3/8 X 24 on the end that the rocker mounts on.
Thus the rocker lockers themselves have just a 3/8 X 24 tpi thread and it is the STUDS that are hybrids.
Perhaps the studs can be used in Opels but would need a hole drilled up them for rocker lubrication. ????
After looking through the Crane Catalogue (?) it appears that they use STANDARD 3/8 X 24 tpi rocker lockers by having a SPECIAL stud.
The stud seems to have 10 X 1.5 mm thread on the end that goes into the head and 3/8 X 24 on the end that the rocker mounts on.
Thus the rocker lockers themselves have just a 3/8 X 24 tpi thread and it is the STUDS that are hybrids.
Perhaps the studs can be used in Opels but would need a hole drilled up them for rocker lubrication. ????
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