Tall valve covers???
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Joined: Oct 2004
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Tall valve covers???
How tall of a valve cover can I run on my 85 before clearance issues? It's a normal deck height 400. Also if I am using it mostly on the street, do I need to install any small baffels for the breathers or PCV valve or anything?
Le Mans Master
Joined: Feb 1999
Posts: 6,172
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From: somers, ny
I used a set of Proform tall covers on my 85. They hit the wiper motor cover slightly but haven't had any issue yet. I'd definitely go with baffles. My 406 pulls a lot of oil from the valve covers and i HAVE baffles. Had to add a separator to stop oil from contaminating the intake charge.
Race Director
Joined: Feb 1999
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From: Indianapolis IN
Originally Posted by ralph
I used a set of Proform tall covers on my 85. They hit the wiper motor cover slightly but haven't had any issue yet. I'd definitely go with baffles. My 406 pulls a lot of oil from the valve covers and i HAVE baffles. Had to add a separator to stop oil from contaminating the intake charge.
Same here I bought these
Le Mans Master
Joined: Feb 1999
Posts: 6,172
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From: somers, ny
LOL.....a separator in my case is a gutted compressor filter. The oil will drop out of the air stream and accumulate in the filter housing which has a small valve to drain it. Usually have to drain it evey 1000 miles or so.
P.S. Nice covers Larry
P.S. Nice covers Larry
Last edited by ralph; Feb 28, 2005 at 05:14 PM.
Burning Brakes
Joined: Feb 2002
Posts: 804
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From: Fresno CA
I used a set of these GM Performance valve covers on my 408 and they have the baffles in them..no oil consumption problems with my pcv system. I did have to trim the plastic cover on the wiper motor slightly but everything works. 
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Originally Posted by eguyett1985
I used a set of these GM Performance valve covers on my 408 and they have the baffles in them..no oil consumption problems with my pcv system. I did have to trim the plastic cover on the wiper motor slightly but everything works.
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Burning Brakes
Joined: Feb 2002
Posts: 804
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From: Fresno CA
They are the short version..the GM performance part number is 12480127. I think they are like 3 to 3.5" tall but I can measure them this weekend if you want. They still require a slight mod to the wiper though...
Melting Slicks
Joined: Oct 2000
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From: Heidelberg PA
Cruise-In V Veteran
Originally Posted by eguyett1985
I used a set of these GM Performance valve covers on my 408 and they have the baffles in them..no oil consumption problems with my pcv system. I did have to trim the plastic cover on the wiper motor slightly but everything works.
Mine are mid height - purchased from Superior Chevrolet and I had Superior powder coat them.
Melting Slicks
Joined: Oct 2000
Posts: 3,426
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From: Heidelberg PA
Cruise-In V Veteran
BillDavis83, sorry about hi jacking your thread, but there are three heights. Short - medium & tall. I will have to see if I can find the part number for my covers. - I had to modify my wiper motor case slightly and use studs w/nuts for the 2 higher bolts - but I have no problem with my 1.6 rockers.
Sorry, I cannot remember how much I paid for the powder coating - I hope to find the invoice for the #'s and then I will know.
Sorry, I cannot remember how much I paid for the powder coating - I hope to find the invoice for the #'s and then I will know.
Race Director
Joined: Feb 1999
Posts: 12,772
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From: Indianapolis IN
Originally Posted by mike 1985
LD 85,
do your clear the wiper motor ? Where did you get them from and how do they seal ? Part #?
Mike
do your clear the wiper motor ? Where did you get them from and how do they seal ? Part #?
Mike
Proform # 12363970 Polished Aluminum Valve Covers
http://www.sallee-chevrolet.com/Prof...ve_covers.html
Burning Brakes
Joined: Feb 2002
Posts: 804
Likes: 5
From: Fresno CA
Originally Posted by jerkyboy
eguyette85, do you have roller rockers? Any clearance issues there? Those are exactly what I am looking for. I want to make sure they clear my pro mags. Very nice job btw!
Safety Car
Joined: Jul 2003
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From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
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I have a thread on this as well. Have the slant edge covers, tall, and they interfere with the wiper motor. Trying to solve this as well.
Safety Car
Joined: Jul 2003
Posts: 3,501
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From: Saratoga Springs NY
2024 C4 of the Year Finalist - Modified
2022 C4 of the Year Finalist - Modified
