How it's supposed to be done.
16thou warpage on the other head.
new head is on, with something special on top runnin the valves.

gm speced cams. in short, what bmw does with the M series engines. they find the best of the best and stick them on a shelf and use them for special purposes. in gm's case. the T/A and grand am series engines.
new head is on, with something special on top runnin the valves.

gm speced cams. in short, what bmw does with the M series engines. they find the best of the best and stick them on a shelf and use them for special purposes. in gm's case. the T/A and grand am series engines.
This is similar to what circle track guys do in late models and super late models. Technically the cam is within specs and vacuum, but it's definitely not a stock cam. Cam technology has came a long long way over the past few years. You can really do whatever you want with a cam nowadays.
All of this is even more reason to not just Stick with the stock cams on our cobalts. All these guys claiming that there is nothing better out there, I don't know what to say. I do know that you can do anything you want with a cam these days and if you do it right, you can see a very nice power increase, especially with a "worked" head.
All of this is even more reason to not just Stick with the stock cams on our cobalts. All these guys claiming that there is nothing better out there, I don't know what to say. I do know that you can do anything you want with a cam these days and if you do it right, you can see a very nice power increase, especially with a "worked" head.
16thou warpage on the other head.
new head is on, with something special on top runnin the valves.

gm speced cams. in short, what bmw does with the M series engines. they find the best of the best and stick them on a shelf and use them for special purposes. in gm's case. the T/A and grand am series engines.
new head is on, with something special on top runnin the valves.

gm speced cams. in short, what bmw does with the M series engines. they find the best of the best and stick them on a shelf and use them for special purposes. in gm's case. the T/A and grand am series engines.
i have a 3 " CTI and i just rectified that problem.. auger exhaust insert that gets placed in the piping.. it's basically the internals of the moroso spiral flow muffler .. holy crapp.. it took the CTI from droning at highway / loud as **** at WOT to smooth and almost stock lol
i have a 3 " CTI and i just rectified that problem.. auger exhaust insert that gets placed in the piping.. it's basically the internals of the moroso spiral flow muffler .. holy crapp.. it took the CTI from droning at highway / loud as **** at WOT to smooth and almost stock lol 




