new valve springs?

[jessica]

i was wondering if anybody knew what size vavle springs i need to replace my old ones and what brand you recommend? i have an 02 trans am with no internal mods.

[Mr. Luos]

If you plan on keeping the internals stock...

Go with stock valvesprings.
Why do you think you need to replace them? One break?

[jessica]

it sounds like the #7 cylinder is knocking a valve spring. my brother in law who owned it before me recommended going with a stiffer spring saying the stock wasn't stiff enough. i plan on upgrading parts to fix it up too. we did a compression test and the cylinder matched all the other cylinders so i was thinking of going with the springs.

[nhraformula]

it sounds like the #7 cylinder is knocking a valve spring. my brother in law who owned it before me recommended going with a stiffer spring saying the stock wasn't stiff enough. i plan on upgrading parts to fix it up too. we did a compression test and the cylinder matched all the other cylinders so i was thinking of going with the springs.

does it have a aftermarket cam?

[nhraformula]

http://www.thunderracing.com/catalog...vid=3&pcid=109

198-8401 Patriot Performance Dual "Gold" Valve Spring Kit - inlcudes titanium retainers, Super 7 locks, machined bases, and Viton valve seals (max lift .650")
$255.00

i have above.

[jessica]

No aftermarket cam

[Mr. Luos]

No aftermarket cam

Stock valvesprings then.
Although I would make sure that is the problem.

Could just be a bent pushrod.

[jessica]

cool i'll check it out then thanks. can you lead me in the right direction to a set of pushrods or springs depending on which i have to go with.

[Mr. Luos]

Your local GM dealership.
Or Fred Beans, an LS1.com sponsor. They do stock GM parts at just over wholesale plus shipping.

http://www.trademotion.com/partlocat...?siteid=214152