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What's a good replacement spring for stock heads?

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Old 05-11-2003, 06:47 PM
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Default What's a good replacement spring for stock heads?

Looking to stay just bolt-ons for a lil while longer, but have a feeling that my stock springs are getting a lil weak. The car has 81K miles on it, and is showing a dip in the dyno graph around 52-5300 rpms, then comes back up around 5700 or so. When the car is cold, it's shown as much as a 75 rwhp drop during thos periods, but as the car gets warmer, the dip gets smaller and smaller.

I also have an audible detonation, but according to the Wideband O2 readings on the dyno, my air-fuel is dead on.

I'm thinking I might be getting a lil valve float, so I thought I would replace the stock springs and see if it helps.

What are your guys' opinions?

Thanks!
Old 05-12-2003, 02:59 AM
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Default Re: What's a good replacement spring for stock heads?

I don't know if you have a cam or not but I'll assume "no" since you are using stock springs. Personally, without a need to upgrade, I'd use a replacement set of stock ones. Just a little refreshing is all you'll need, I think.
Old 05-12-2003, 06:42 AM
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Default Re: What's a good replacement spring for stock heads?

Nope, no cam. Everything is stock.
Old 05-12-2003, 08:12 AM
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Default Re: What's a good replacement spring for stock heads?

I would throw a set of LS6 springs on. It can't hurt, and you could always install hotcam or ASA hotcam later...


Tommy
Old 05-12-2003, 08:58 AM
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Default Re: What's a good replacement spring for stock heads?

Very good point Toomy, I completely forgot about the LS6 springs!! :doh: Thanks alot man!
Old 05-12-2003, 03:14 PM
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Default Re: What's a good replacement spring for stock heads?

hot cam springs r good to .525" and r only like $30... '02 ls6's r good to .570" or so and r around $90...




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