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

Valve covers

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Old Feb 13, 2006 | 05:05 PM
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Default Valve covers

Has anyone seen Eddlebrocks chrome valve covers at advanced/autozone for 40$. Why are they so cheap. Also is it hard to replace valve covers. Mine are peeling really bad. Thx.
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Old Feb 13, 2006 | 08:16 PM
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i have not seen them but would check them out a bit further. I just replace mine with the elite series from edelbrock and man they look great.I got them from ecklers for for 180. As far as being hard to do not bad at all it was fun to play with my car an this winter when i can't drive it
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Old Feb 13, 2006 | 08:22 PM
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I got these for 115 bucks from Summit
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Old Feb 13, 2006 | 08:22 PM
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Its always fun to play with a vette. Just waiting to unleash it on the road again
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Old Feb 13, 2006 | 08:23 PM
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BTW very attractive valve covers. Thats what these looked lilke but just all chrome. Maybe a discontinued sale?
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Old Feb 13, 2006 | 08:26 PM
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Originally Posted by C4driver99
BTW very attractive valve covers. Thats what these looked lilke but just all chrome. Maybe a discontinued sale?
Maybe I guess, I was actually shocked when I found these. Up until then I had only seen the chrome smoothies and "thats not my bag", to retro for me.
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Old Feb 13, 2006 | 08:33 PM
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Yea. Yours look incrediable. If you can would you post a pic of it installed. Just so i could get a idea of what it looks like. If not no biggie. Thanks.
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Old Feb 13, 2006 | 09:05 PM
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I will when it's in, here is where I'm at
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Old Feb 13, 2006 | 09:57 PM
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Wow. That looks like a tough task. So what are you doing? engine upgrade? Modifacations?
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Old Feb 13, 2006 | 10:04 PM
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383, 4 bolt block, SPR Forged Pistons, Forged Scat H Beam rods, Scat cast crank, Plasma Moly Rings and everything you see in the sig, plus a Centerforce clutch, I can't wait till its done.
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Old Feb 13, 2006 | 10:13 PM
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If you dont mind me asking how much hp you got from all that. Im new so i dont know that much
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Old Feb 13, 2006 | 10:16 PM
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Tests of similar motors both in displacement and CR have made 440-450HP and 550-575 FtLbs of torque with intakes like mine with similar cams. Thats my goal.
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Old Feb 14, 2006 | 02:55 PM
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Originally Posted by C4driver99
Has anyone seen Eddlebrocks chrome valve covers at advanced/autozone for 40$. Why are they so cheap. Also is it hard to replace valve covers. Mine are peeling really bad. Thx.
they're cheap cause they're cheap metal chromed--not stiff aluminum that will give you a more consistent seal. leaking valve covers can pull oil down through the guides into the combustion chamber.

i found out my old valve cover seals were leaking by looking at my plugs using the reading guide on this site:
http://www.4secondsflat.com/Spark_plug_reading.html


frog.
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Old Feb 14, 2006 | 07:14 PM
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Thx froggy.
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Old Feb 15, 2006 | 03:19 AM
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Looks good - I got mine for AU$15 a PAIR at a hotrod show - cheap and nasty but surprisingly they dont leak with felpro seals.

You could always paint or detail them in between the fins if you wanted.

Here's mine (Scroll right down and you'll see what I did with detailing)

http://www.australiancorvettes.com/p...wtopic.php?t=3
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Old Feb 15, 2006 | 04:51 AM
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Originally Posted by parafrog
they're cheap cause they're cheap metal chromed--not stiff aluminum that will give you a more consistent seal. leaking valve covers can pull oil down through the guides into the combustion chamber.

i found out my old valve cover seals were leaking by looking at my plugs using the reading guide on this site:
http://www.4secondsflat.com/Spark_plug_reading.html


frog.

Whoa Whoa Whoa!!!!

Leaking valve stem seals can cause oil to drip down into the combustion chamber.

Leaking valve cover "seals" or actually the rectangular gasket can cause oil to leak onto the exterior of the head and onto exhaust pipes.

The shape/form/gasket of the valve cover has nothing to do with spark plugs. However, he is right that cheap and flimsy vc's MAY not seal right and leak oil. Just not into the combustion chamber of the head!

Last edited by USAsOnlyWay; Feb 15, 2006 at 04:54 AM.
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Old Feb 15, 2006 | 05:24 AM
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Originally Posted by USAsOnlyWay
Whoa Whoa Whoa!!!!

Leaking valve stem seals can cause oil to< "(drip down)"-misquote see above> into the combustion chamber.

Leaking valve cover "seals" or actually the rectangular gasket can cause oil to leak onto the exterior of the head and onto exhaust pipes.

The shape/form/gasket of the valve cover has nothing to do with spark plugs. However, he is right that cheap and flimsy vc's MAY not seal right and leak oil. Just not into the combustion chamber of the head!
actually leaky bits can do many things, especially if a cylinder is sucking air--especially if your rings, valves, seals or guides, or all of them are less than spec or (dependant on the cycle) blowing air through the covers--or worse-the pump leaks during both cycles.

in my opinion, sucking air and oil into a cylinder is worse than the compressed cylinder pressure blowing oil through the valve covers onto the headers. an internal combustion engine is basically an air pump powered by the introduction of an explosive vapor. its job is sucking gasoline vapor through valves into the cylinders, compressing it, igniting said vapor, holding it for maximum power and expelling the combustion gases through valves. repetitive explosions drive the crankshaft in a constant direction which is transfered to the drivetrain.

the auto air pump operates best when air induction and expulsion are fully controlled by the camshaft. the engine mechanical and computer systems are designed to work best under ideal and predictable conditions. ergo: don't want no leaks. leaks are bad.

physics 101


i can remember when i was young and had a hard head.


if you don't believe me that air leaks on a compressed system make a difference, look at the website i listed above. it is the most comprehensive site i have ever seen on reading plugs. look at it, and you will see why i was so impressed and enlightened. at least, i hope you will.




froggy.

Last edited by parafrog; Feb 15, 2006 at 07:41 AM.
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Old Feb 15, 2006 | 08:20 AM
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Originally Posted by parafrog
physics 101


i can remember when i was young and had a hard head.


if you don't believe me that air leaks on a compressed system make a difference, look at the website i listed above. it is the most comprehensive site i have ever seen on reading plugs. look at it, and you will see why i was so impressed and enlightened. at least, i hope you will.
froggy.

Ummm, Long before there where PCV systems they had breathers (A big hole in the top of the VC with an air cleaner). Many people still use the breather system and with no problems of leaky valve seals. The PCV systems do a lot of good for the motor but that is because it provides a positive suction for the crank case ventilation system. Trust me on this one if you have a poorly sealed VC it will spew oil all over the motor long before you have any sort of combustion problems.


If this is the point in the article you are refering to it is probably refering to a ceter mount plug. In that case a leaky valve cover could fill the hol;e with oil and then leak oil into the CC. For a SBC this is not going to be a problem because you will be dumping oil onto the exhaust and fire will be of bigger concern

"leaking valve covers allowing oil to seep through the plug threads, whatever it needs to be fixed."

Last edited by FD2BLK; Feb 15, 2006 at 08:27 AM.
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Old Feb 15, 2006 | 11:21 AM
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Hey Stubbs, what's that YELLOW thing in the back ground-you're not
copying AGENT86 are you Yeah those cheap valve covers are cheap because they're low grade and it won't be long-I'd rather paint mine.
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Old Feb 15, 2006 | 12:05 PM
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Originally Posted by rick lambert
Hey Stubbs, what's that YELLOW thing in the back ground-you're not
copying AGENT86 are you
The ARP bolts or the garbage can? The garbage can is at my mechanics shop, its not mine. Does AGENT86 have one or something?
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