LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Valve Spring install HELP!!!!

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Old 05-05-2009, 11:23 PM
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Question Valve Spring install HELP!!!!

well im finally getting around to removing to OE spring and installing my beehive comp spring and i ran into a problem. I'm not sure of the technical term here but the piece that sits up against the head and between the valve stem seal isn't allowing my inner spring to sit all the way down. Do i just remove it completely, leave it and allow the inner spring to rest on it and compress it down on it, or do i need to order some more parts????

I have never done valve train so I'm new at this.

Any help welcome


Old 05-05-2009, 11:30 PM
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i guess this would also help a little bit as to how the inner spring is sitting on it. i took the outer spring off to take this picture.
Old 05-06-2009, 01:25 AM
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its called Valve Spring Locator, and yes u need to replace that with hardened steel shims and then check for installed valve hight and set according to ur cam manufacturer recomendation,
here is an example of what u need: http://store.summitracing.com/partde...5&autoview=sku
Old 05-06-2009, 01:36 AM
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are you sure those are 918's (beehives)?

they are a single spring

most "dual" springs (like the ones in your pics) need the valve guides machined down for a smaller valve stem seal to clear.

Replace all valve stem seals and get Crane 10308-1 spring kit. Otherwise have your heads machined and get one of many many aftermarket springs. Beyond valve stem machining, get the spring pockets machined down so you can run springs with a 1.8" installed height using a spring locator.
Old 05-06-2009, 01:54 AM
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the part number is CRN-10308-1 spring and retainer kit. It already comes with the shims
Old 05-06-2009, 11:20 AM
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The Crane 10308 spring kit is what I am running, no issues here.

What Comp springs are those exactly? Most use the 918's and they are a single springs.
Old 05-06-2009, 02:59 PM
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http://store.summitracing.com/partde...0&autoview=sku
This is the link and it says dual springs. No machining required not actually sure on what particular springs they are. I got a lot of help from StealthFormula. He is the one that dirrected me one which ones to order for my application
Old 05-06-2009, 03:32 PM
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Originally Posted by litch2004
http://store.summitracing.com/partde...0&autoview=sku
This is the link and it says dual springs. No machining required not actually sure on what particular springs they are. I got a lot of help from StealthFormula. He is the one that dirrected me one which ones to order for my application
The springs in the link are the springs I have on my heads. The picture looks different, but I think it's a mistake, or a default picture.
Old 05-06-2009, 03:34 PM
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Ya it only shows a single spring in the picture but they are a dual spring per valve, im sure you already know this. So did you remove the spring locator, put in the provided shims, and then the new valve seals and then just put the new springs on ?
Old 05-06-2009, 03:41 PM
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Originally Posted by litch2004
Ya it only shows a single spring in the picture but they are a dual spring per valve, im sure you already know this. So did you remove the spring locator, put in the provided shims, and then the new valve seals and then just put the new springs on ?
No, I removed the old spring, retainer, and locks, removed the old valve seal w/ a pair of pliers, removed the stock spring locator (seat), layed the shim down, put the stock seat back down, tapped the new valve seal (felpro replacements) on with a deep socket and the little plastic tube over the valve stem, dropped the spring down, layed the new retainer on the springs, compressed the spring with my spring compressor, slide the new locks in place, decompressed the spring, and finally I gave the top of the valve step a few whacks with a rubber hammer to ensure that everything was locked.
Old 05-06-2009, 03:45 PM
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So you didnt have a problem with the inner spring sitting on top of the stock spring locator as it shows in my pictures?
Old 05-06-2009, 03:45 PM
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Default stock seats/seal picture

Your seals and seats should look like this, at least mine did:

http://shbox.com/ci/ci161.jpg

Install of new seal (shim layed on head, stock seat over shim, then tap on the valve seal):

http://shbox.com/ci/ci171.jpg

This is a very helpful writeup of a spring swap:

http://shbox.com/ci/valve_spring_swap.html
Old 05-06-2009, 03:47 PM
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my seat is taller for some reason. Maybe it has something to do with mine being a 93 and yours being a 97. mine are about a half an inch tall
Old 05-06-2009, 03:50 PM
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Originally Posted by litch2004
my seat is taller for some reason. Maybe it has something to do with mine being a 93 and yours being a 97. mine are about a half an inch tall
If the valve guides are identical, then I'd get a set of seats from a '94-'97 (assuming they are all the same) and use some felpro replacement seals (you should be installing new seals anyway).
Old 05-06-2009, 04:01 PM
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Yes i got new seals. They just look like a rubber cap that sits on top.they clear the spring no problem. it is the seats that i am having issues with.
Old 05-06-2009, 04:04 PM
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Originally Posted by litch2004
Yes i got new seals. They just look like a rubber cap that sits on top.they clear the spring no problem. it is the seats that i am having issues with.
You should be able to get new seat no problem. Put a WTB in the classifieds section or go to your local junkyard.
I don't have any, sorry.
Old 05-06-2009, 04:17 PM
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And my valve steam seals on my car arent a metal ring like they are in the picture. They are a rubber boot that sits on top. Guess thats another thing they changed in the later model LT1's
Old 05-06-2009, 04:18 PM
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Originally Posted by litch2004
And my valve steam seals on my car arent a metal ring like they are in the picture. They are a rubber boot that sits on top. Guess thats another thing they changed in the later model LT1's
I noticed that, your car is all assbackwards, lol.
Old 05-06-2009, 04:23 PM
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Ya it is. I guess the '93 is a breed of its own.
Old 05-06-2009, 04:38 PM
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The stock and shouldered seat shown are not to be used if the spring is stock diameter you can use a l-98 spring seat (from alum headed vettes ) or buy the propper seat. the inner spring should not touch the seat except on the bottom.

As said in the 2nd post a hardened steel shim (looks like a big washer) wil lwork as well, and as said the installed height needs to be checked and shimmed to propper height.

If you assemble it the way you have it now you will have 16 bent pushrods.


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