Hi,

I know I've been asking a lot of questions that are related to each other lately but things keep popping up as I go along with my cylinder head rebuild. Are Supertech 70lbs dual valve springs and Supertech steel retainers safe to use with OEM GSR cams? I may have seen some people online using this valvetrain with stock cams, but I have also heard that the uprated springs may wear/damage the rocker arms, cam lobes, etc. I am looking at this valvetrain because I am going to get Buddy Club Spec III+ cams, but not until the car can get smogged and taken off non op. Even then, I'll probably drive the car a couple hundred miles before I install I cams. I'd rather buy the Supertech valvetrain now so I don't have to take the head apart again later, but if it is harmful to stock cams then I won't get it. Your thoughts and input are greatly appreciated. Thanks!

 

No you will be absolutely fine with stock cams, its the opposite that will hurt the engine in the event you revved the **** out the engine and the stock valve train cannot keep up with the cam lobe and end up floating a valve. As long as the stock cams are in and your not revving it past the stock redline your fine.

I had those cams years ago and made I think 216 WHP on my ITR engine and was fun to drive.

I would highly recommend staying with the matching valve train as a good rule of thumb and go with Buddy club valve springs and retainers.

Its not very hard to install/ replace the valve springs and retainers with the head still on if you want to keep the stock valve train and cams in, iv done it a few years ago its easy as long as you use compressed air to keep the valves up. They sell a special tool that makes it super easy.

But again you can install your after market valve train while the head is off at the machine shop with stock cams and when your ready install your after market cams.

 

Thanks for your input! If that's the case, I'll order a new valvetrain right away! I *did* want to get the Buddy Club valvetrain because they most likely match better with the Spec III+ cams, but the BC retainers are titanium and I'd rather have steel retainers since this car will become my daily once I get it running reliably. Not to mention that the BC springs and retainers would add up to over $600, so I'll just go for the Supertech stuff as long as the max lift, spring pressure, etc. are in the right spec.