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Interesting find on my TTA's engine.....

ev2 aar

Well-Known Member
My car had a pretty bad oil leak,thinking the worst,rear main seal as it was coming from the back of the oil pan.upon close inspection with the car up on my lift,it was perfectly clean and dry on the back of the engine,inside the tranny bellhousing,and you could even see directly under the crank sticking out of the block that it was not leaking.to my finding,looks to have been fixed already,but whoever did the job should be slapped.
They used a rubber gasket and flooded both sides of it with black RTV.The gasket,was splitting apart and was the culpret for the leak.Great,I don't have to mess with the rear main cap,but still had to lift up the engine to get the pan off.
After cleaning up and getting the pan ready to be put back on,I was cleaning up the engine now and for whatever reason started looking up inside.As I asked this question in another post about these cars having roller cams,as advertised in the brochures,was told no they did'nt,were supposed to,but don't as the cost was going to be to high.
Well.........my car does!!!!! Is this the situation,they started to,and then said to scrap the idea of all of them having roller cams,as my car is any early build,#255,and at some point later they got reg cams left in them?
My car is a low mile car,15k,completely all bone stock,never modified,and upon close inspection,besides PAS,noone has ever tamperd with the front of the engine to do a cam change,NTM,that would be farther down the list of mods after doing a larger turbo,injectors,exhaust,etc.You would not just do a cam change,IMO.
Now,has anyone else,low or higher # builds recall peeking inside theirs to see what was in theirs?
Also,right on the back of the cam,you can see cast right into it,the word COMP CAM on it.As we know,GM does not m,ake their own rollers,even for their new cars,and was this outsourced by PAS for the TTA engines?
This would not suprise me if the early cars got them and the later ones did'nt as we know how the GNX's were supposd to have ported and polished heads,and only the first less than 100 I recall did,and then that was stopped.
Pics...
 
I wonder why they would put in a roller cam but not a roller rocker?

Somebody should present this info to Scott Kelly, maybe he can comment.
 
I don't think you have a factory roller cam installed. People do put in roller cams for the performance benefit, and not always are roller rockers installed at the same time.

There are hundreds of dozens of "unopened" motors running around with different cams,headwork,double roller chains and gears,etc.

I'd be happy if I were you that someone saved you a costly upgrade!
 
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Sorry man, but your car does not have the stock cam in it. No TTA's came stock with roller cams (I asked Scott this in person to dispell this myth) and Comp DOES NOT make cams for GM.

Last summer I saw the stock roller cams come out of over 30 LS engines from LS1/2/3/6/7 and even saw a stock LS9 cam although I did not see that one come out in person. NONE of them had Comp stamped on them. They had numbers with one of the sequences having a letter on them. Granted these were different motors, but even if GM does let an outsider produce parts, they aren't stamped with their logo. Perfect example being the new ZR1 with brembo CC brakes. The replacement pads come in a Brembo box with AC part numbers. However, you can buy the brembo pads with a different partnumber pertaining to the Brembo system.

Be glad you have a roller cam, but it is not stock.

:)
 
The car only has 15k orig miles,even thru its early miles/life there still was zinc in the oil up til recently.And does'nt look to ever been taken apart.

But it has been taken apart with the info you mentioned in the first post about the oil pan....pandoras box...now open it!!!!!!
 
Whatever it is,it is.I just find it odd that someone would go thru all the trouble to put in a roller cam,and have NO other mods whatsoever.Especially with low miles,no need to do it.
Upon looking closely at everything you would have to touch to do so,there is nothing out of place,missing,half assed,etc about the cam change.Truely looks/appears to never have been touched,so whoever did it,did a great job to make it appear as so.
Agreed,yes,either way,I am happy that it has a roller cam in it,alot of good benefits to it.
 
But it has been taken apart with the info you mentioned in the first post about the oil pan....pandoras box...now open it!!!!!!


I would have to say, a good portion of these cars had their oil pans dropped,as the rear main seal was a def problem on these and regardless of miles,were prone to leaks.
 
if u have a GN or TTA no matter miles if it doesnt leak the turbo gods love you ! I put a roller cam in my TTA ill one day 2000 never prolly put harland sharp roller rockers on it .... i have too much on my plate
 
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