C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Valve spring upgrade - 1.6 RR

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Old Apr 25, 2007 | 01:21 PM
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Default Valve spring upgrade - 1.6 RR

I have a 90' corvette - Stock heads and cam
Although not indicated as mandatory it has been said it is a good idea to change the valve springs --

What would be a good upgrade so if I put a cam in I would not have to change them again??

Also- is there a special tool required to remove the retainer on the spring??

Thanks
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Old Apr 25, 2007 | 01:31 PM
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The spring would depend on the cam. If you want to you can use an expensive spring that can handle a lot of cam. It is cheaper to match them together though. The LT4 springs are a sweet price but can only handle to .525 lift.

http://www.superchevyperformance.com...p/12495494.htm

Other springs might be five times the cost or more.
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Old Apr 25, 2007 | 11:04 PM
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There are a lot of stock diamater springs out there to choose from. Most are not very expensive (less than $100). These from Howards cams will go to .570 lift.

http://www.competitionproducts.com/p...s.asp?dept=419

Either of these will go to .650 lift.

http://www.competitionproducts.com/products.asp?dept=56

Also PEP, SI and Pioneer make similar 1.250 springs, what you should buy depends on your future cam plans.

Yes, you need a special valve spring compressor and a small magnet (for the keepers) to change out the valve springs on the car.
Will
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Old Apr 26, 2007 | 01:47 AM
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The spring would depend on the cam.

Decide on what cam you will likely/probably go with and chose the spring to match. Also you may want to decide on which RR ratio to get to match up with the cam.

Also do a nice set of RRs, say the ProMagnums.
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