Help! Engine is done, valve covers don't fit!
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Joined: Jul 2004
Posts: 98
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From: Maple Grove Minnesota
Help! Engine is done, valve covers don't fit!
I originally was planning to use my stock L98 heads with my new LPE 219 camshaft and 1.6 RR and knew I would have to grind off the oil tabs to make the stock valve covers fit, but I ended up buying new Dart Pro1 heads and now the valve covers won't fit. The stock valve covers were the center bolt type and the new heads require the 4 corner bolt valve covers. I was trying to find tall valve covers to make sure the roller rockers would clear, but I can't find any tall valve covers for my engine. Anyone know which valve covers and where I can get them to fit?
Melting Slicks
Joined: Jun 2004
Posts: 3,032
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I dont think tall valve covers will clear everything in an L98. At least in my '85 that was the case (my engine is all stock though)
If it's just a SBC setup, any perimeter bolt valve cover should fit right? Have you checked summitracing.com? And Autozone has them, as well as pretty much any online store.
I would check to see how much clearence you would have if you want tall valve covers, otherwise- I believe summit sells extra thick valve cover gaskets, which may give you some extra space...
If it's just a SBC setup, any perimeter bolt valve cover should fit right? Have you checked summitracing.com? And Autozone has them, as well as pretty much any online store.
I would check to see how much clearence you would have if you want tall valve covers, otherwise- I believe summit sells extra thick valve cover gaskets, which may give you some extra space...
Last edited by mikey whipreck; Aug 16, 2005 at 12:14 PM.
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Joined: Oct 2003
Posts: 72
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From: Scranton Pa
Valve Cover Adapter plates....
Originally Posted by Aidoneus
Where can one find the adapters? I don't see anything like that at Summit.
http://www.sallee-chevrolet.com/GM_V...24502540gm.gif
here's the P/N: 24502540
and here's the link for the part... it's halfway down the page and it's the ONLY part listed in the section "VALVE COVER ADAPTERS" :
http://www.sallee-chevrolet.com/GM_V...ers/parts.html
Good Luck.
JM
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Burning Brakes
Joined: Dec 2002
Posts: 1,088
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From: Lakeland fl
Short valve covers may clear on the Dart heads. I have an older set (10 years old) and they have a machined valve cover rail that is raised about 3/16 over the stock rail. That extra clearance might get your valvetrain underneath the low covers while leaving room above.
Instructor
Joined: Jun 2005
Posts: 109
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From: New Milford Ct
I believe the only real problem spot with tall valve covers is with the wiper motor. I bought a set of tall cast aluminum valve covers from GM Performance Parts, and they fit perfectly.
Check Ebay item number 7992715364
Those are the same style valve covers I have. Notice the ends on top have a bevel to them. It allows these to go under the wiper motor with no problems.
Check Ebay item number 7992715364
Those are the same style valve covers I have. Notice the ends on top have a bevel to them. It allows these to go under the wiper motor with no problems.
Thread Starter
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Joined: Jul 2004
Posts: 98
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From: Maple Grove Minnesota
Hey thanks for all the replies guys, I ordered two sets of valve covers. I'm going to try the Dart Tall valve covers like AZC4 first, those look SWEET and were pretty cheap. If that doesn't work, I also ordered some Trick Flow fabricated aluminum covers so they could be ground and weld if there is an issue with fit. Hopefully one or the other will work out. Thanks for the help.
Instructor
Joined: Jun 2005
Posts: 109
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From: New Milford Ct
Originally Posted by bogus
His is a 1990... there might be fitment problems over by the ac bracket and perhaps at the alternator, too...
Le Mans Master
Joined: Dec 2002
Posts: 5,270
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From: Seattle Area WA
86 c4 here and I am running perimeter VC's on jerkyboys old Pro1s. I have the tall al dart VC's. I replaced the winshield wiper bushings with washers and now they fit!
Also note, these ones do not come drilled so you have to drill them yourself.
Pick up a 1 3/16 hole saw (for pcv grommets) and a 1 1/4 hole saw (for push in oil cap style), both in the "bi-metal" style, not the carbon ones. A drill press and then have at em. For baffles pick up moroso's baffled PCV grommets #68772
http://store.summitracing.com/defaul...=egnsearch.asp
These are the vc's:
Also note, these ones do not come drilled so you have to drill them yourself.
Pick up a 1 3/16 hole saw (for pcv grommets) and a 1 1/4 hole saw (for push in oil cap style), both in the "bi-metal" style, not the carbon ones. A drill press and then have at em. For baffles pick up moroso's baffled PCV grommets #68772
http://store.summitracing.com/defaul...=egnsearch.asp
These are the vc's:
Thread Starter
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Joined: Jul 2004
Posts: 98
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From: Maple Grove Minnesota
Originally Posted by mikey whipreck
Can you post a pic if you get them to fit?
I'd like to see how tight tall valve covers are
:
I'd like to see how tight tall valve covers are
:
That is of course, assuming one or the other fits at all!!
