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

Valve Covers

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Old Jan 26, 2009 | 10:13 PM
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Default Valve Covers

What are the benefits of installing aftermarket valve covers(Magnesium or aluminum etc.)? Besides for buying a taller valve cover to allow for 1.6 rollers.
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Old Jan 26, 2009 | 10:15 PM
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Because they look ..WW
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Old Jan 26, 2009 | 10:26 PM
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Originally Posted by WW7
Because they look ..WW
oh of course they do. Just wondering on any other benefits
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Old Jan 27, 2009 | 02:58 AM
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the only reason i can think of would be to clear the valve train. or at least the only mechanical reason i can think of.

Last edited by duntovlives; Jan 27, 2009 at 05:59 AM.
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Old Jan 27, 2009 | 03:03 AM
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They're quieter than stamped steel...they were originally used with solid lifter motors.

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Old Jan 27, 2009 | 05:55 AM
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I bough these because of the old school look & the fact they will clear 1.6 rockers.


I had re-done the factory magnesium covers but the GM castings were so bad with pitting, I still didn't like the way they turned out. I think the script Corvette lettering with the raised ribs look good on the L98.

Last edited by floridamale; Jan 27, 2009 at 05:59 AM.
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Old Jan 27, 2009 | 06:13 AM
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Curveit- i forgot all about that!!!! touché

floridamale- those look great! What a clean look, with that old school attitude. do they only utilize 2 cover bolts? i can't see any sign of fasteners on inside.

after trying to "refurbish" my original L98 covers, i had to go through numerous sets of factory mag covers to get a pair i was satisfied with and then had to have them powder coated to hide what blemishes i could. Luckily, & to my surprise, they look decent and have held up quite nice. but if i would have ran across a set of finned ones like that, i would have had to have them!

Last edited by duntovlives; Jan 27, 2009 at 06:17 AM.
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Old Jan 27, 2009 | 06:27 AM
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Originally Posted by duntovlives
Curveit- i forgot all about that!!!! touché

floridamale- those look great! What a clean look, with that old school attitude. do they only utilize 2 cover bolts? i can't see any sign of fasteners on inside.

after trying to "refurbish" my original L98 covers, i had to go through numerous sets of factory mag covers to get a pair i was satisfied with and then had to have them powder coated to hide what blemishes i could. Luckily, & to my surprise, they look decent and have held up quite nice. but if i would have ran across a set of finned ones like that, i would have had to have them!

Yes they are very ridged and only need the outer hold down bolts no leaks what so ever, the only thing I had to do was mill some holes in top sides for the PVC & breather.
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Old Jan 27, 2009 | 06:58 AM
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Originally Posted by floridamale
I bough these because of the old school look & the fact they will clear 1.6 rockers.


I had re-done the factory magnesium covers but the GM castings were so bad with pitting, I still didn't like the way they turned out. I think the script Corvette lettering with the raised ribs look good on the L98.
Very nice! They look good with the TPI setup.
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Old Jan 27, 2009 | 07:43 AM
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floridamale, where did those come from? I need new ones and those look just super.
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Old Jan 27, 2009 | 12:10 PM
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Originally Posted by Muffin
floridamale, where did those come from? I need new ones and those look just super.
I got a super deal on mine less then half price auction site polished aluminum I painted the centers black the company that makes them is

http://www.yourcovers.com/newvalve.htm

you will need to mill 1inch holes for PVC & breather but they are baffled to do that
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Old Jan 27, 2009 | 09:46 PM
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Originally Posted by floridamale
I bough these because of the old school look & the fact they will clear 1.6 rockers.

.
too bad those arent made for the LT1, id be all over those!
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Old Jan 27, 2009 | 10:48 PM
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I do not see any oil fill inlet? how do you add oil?
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Old Jan 27, 2009 | 11:06 PM
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Originally Posted by bdaum2112
I do not see any oil fill inlet? how do you add oil?
I use the PVC opening & a hose attached to a funnel works perfect.
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Old Jan 28, 2009 | 01:26 AM
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valve covers allow unique (better) valve covers. The stock valve require that the drip tabs be ground for aftermarket (most good stuff) rockers. Shaft rockers require taller and with the side to side ribs deleted.

Thus other than looks...there is no reason to change it.
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Old Sep 2, 2009 | 03:33 PM
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Originally Posted by 5POINT7
too bad those arent made for the LT1, id be all over those!
They fit LT1 as well. Check out their site and they have pics up there. I'm trying to decide which finish to get now.
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