Pro mags and valve covers

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Dec 8, 2008 | 11:54 AM

BigDB

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From: Enid, OK

Pro mags and valve covers

What do most do to get the poly locks to clear. We cut the cross bracing out but I think the covers are flexing and causing a leak on the passenger side.

Dec 8, 2008 | 01:29 PM

StealthFormula

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From: Skippack, PA

For both sets of valve covers I've ran with those Rocker's I just grinded down around the I supports a good amount and they worked fine. I cut the one side of the bracing out on my stock valve covers and it didn't make them flex at all. If you cut both sides out I could see that but you don't need to cut both sides out.

Dec 8, 2008 | 01:31 PM

BigDB

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From: Enid, OK

we cut both side out. Guess its a goof

Dec 8, 2008 | 01:35 PM

camar0corey

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From: Spring Hill, FL

I just ground down the supports also, I don't think I had cut anything out of them. Not knowing I didn't have to do it I ground down on the inside of the tops of them too.

Dec 8, 2008 | 01:38 PM

Elliott's94Z

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From: Oregon Grown

I'm having to grind around the supports as well

Dec 8, 2008 | 02:05 PM

koolaid_kid

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From: Indianapolis

Could someone please post pics of where the stock valve covers need to be cut and/or ground? I am currently in the middle of a build with exactly that scenario - stock covers with Compcams Promagnum SA 1.6 rockers.
Thanks in advance.

Dec 8, 2008 | 02:08 PM

wrd1972

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From: Central Kentucky

Look at the bottom of this page:
http://www.golenengineservice.com/ht...html#valvecmod

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Dec 8, 2008 | 02:17 PM

camar0corey

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From: Spring Hill, FL

Wow. Wish I had taken pics of mine when I had them off, I don't have anything like that cut out. I had just ground down both sides of the supports flat.

Dec 8, 2008 | 05:18 PM

#10

pooogy

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I just bent the bottom of the supports to make them straight up and down.

Dec 8, 2008 | 05:57 PM

#11

mike2244

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From: laporte/corpus christi

i had to go with the lt4 composite valve covers, promags were hitting the top of the valve cover even after i cut the supports out. have no problems with the lt4 valve covers

Last edited by mike2244; Dec 8, 2008 at 06:35 PM.

Dec 8, 2008 | 10:33 PM

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JB_97ws6TA

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From: Central Valley, CA

I was under the assumption that compcams 1.6 roller rockers fit under the valve covers with no issues, am I wrong??

Dec 9, 2008 | 03:20 AM

#13

bombebomb

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From: Ohio

Quote:

Originally Posted by JB_97ws6TA

I was under the assumption that compcams 1.6 roller rockers fit under the valve covers with no issues, am I wrong??

Atleast comp pro mag 1.6 NSA require cutting.

Dec 9, 2008 | 08:53 AM

#14

Mattsz28

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I went aftermarket. There shiiiiinnnnyyy

You could just pick of a cheapo set on ebay. As long as they have the correct bolt pattern and a gasket retention area, your good to go.

Dec 9, 2008 | 12:24 PM

#15

camar0corey

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From: Spring Hill, FL

So the NSA's are larger than the SA's then?

Dec 9, 2008 | 12:53 PM

#16

koolaid_kid

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From: Indianapolis

Would they perhaps be wider? I just went out to the garage and slip fit the stock covers on the head, it went on fine with no gasket for height clearance. I have SAs. Would that be an indication that I am O.K.? The engine is upside down because I am working on the $*&%* Canton oil pan, so I did not try rotating the crank to see if anything hit during rotation.