Interesting rockers....
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They are the new Comp Cam LS1 shaft mounted adjustable 1.7 rockers,DRE makes them for CompCams.I bought a set to try out,suppose to fit under stock valve cover.
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From: Port Tobacco, MD
I just found out that to use these rockers....
1) You need custom pushrods or have yours machined
2) The pushrod holes need to be enlarged
#2 I can live with but getting custom pushrods made for the LS1...How much is that gonna cost?
Phillip
1) You need custom pushrods or have yours machined
2) The pushrod holes need to be enlarged
#2 I can live with but getting custom pushrods made for the LS1...How much is that gonna cost?
Phillip
Ok,these will more than likely require machine work to open pushrod hole,.090 towards Ex.side,I was told some do and some dont but if the head is off ,why take a chance.
As far as custom length pushrods,the rockers have .050 of adjustability.Lets say you run Comp R lifters that like .010 pre load or less,that would leave .040 to adjust for pushrod length or am I missing something?
As far as custom length pushrods,the rockers have .050 of adjustability.Lets say you run Comp R lifters that like .010 pre load or less,that would leave .040 to adjust for pushrod length or am I missing something?
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From: Port Tobacco, MD
JFM,
Sure they have the adjustability but if you dont run a 7.100 - 7.050 pushrod they wont work with stock valve covers
Phillip
Sure they have the adjustability but if you dont run a 7.100 - 7.050 pushrod they wont work with stock valve covers
Phillip
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From: Texas, it's like your state, but better.
naa, just use the dremel yo.. ;D
[Disclamer: Vents does not condone the use of a "dremel" on any part of the LS1 engine, doing so could be detremnental towards the engine and other components. do so at your own risk.]
good looking rockers though, if they were more like 3 ish, i'd consider them over the Jessels or a T&D set.
[Disclamer: Vents does not condone the use of a "dremel" on any part of the LS1 engine, doing so could be detremnental towards the engine and other components. do so at your own risk.]
good looking rockers though, if they were more like 3 ish, i'd consider them over the Jessels or a T&D set.
I used a big drill. :-/
These remind me of the first few sets of T&D's, which made my life a living hell for a few months.
There is no good way to resize those pushrod holes without the heads off.
never again.
chris
These remind me of the first few sets of T&D's, which made my life a living hell for a few months.
There is no good way to resize those pushrod holes without the heads off.
never again.
chris
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From: Port Tobacco, MD
Where can you get custom made pushrods and how much?
The guy I talked to said you need pushrods that are 300 thousands shorter....so I guess that means I need 7.050
Phillip
The guy I talked to said you need pushrods that are 300 thousands shorter....so I guess that means I need 7.050
Phillip
I should have mine soon and will let Jay[AbsoluteSpeed]try the fitment on his test motor.I will let you know what Jay comes up with.
Phil,that is one short pushrod[7.050],do you know how he came up with a 3/10s inch shorter pushrod?
I hope this set up dont turn into a $500+ pile of crap.Live and learn.
Phil,that is one short pushrod[7.050],do you know how he came up with a 3/10s inch shorter pushrod?
I hope this set up dont turn into a $500+ pile of crap.Live and learn.
The angle of the cup for the push rod is all wrong. I really tried everything to get them right, but couldnt. Id be interested to see how you go with them.
Its a shame really, because they are a very nice thing to look at. Ive used T&Ds, Yella Terra, both Comp Cams types including these and Crane 1.8s.
So far, the T&Ds have been the most flexible product for all variations of spring diameters and install heights.
Good luck and please let us know how you go.
Pete.
Its a shame really, because they are a very nice thing to look at. Ive used T&Ds, Yella Terra, both Comp Cams types including these and Crane 1.8s.
So far, the T&Ds have been the most flexible product for all variations of spring diameters and install heights.
Good luck and please let us know how you go.
Pete.


