Two holes or three?

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Dec 24, 2004 | 08:35 PM

74FLCONV

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Melting Slicks

Joined: Oct 2002

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From: Manalapan FL

Two holes or three?

Looking for a set of new (aluminum) valve covers. Most examples come with two holes. My stock covers have three (filler, PCV, breather-to-air filter).

Will the PCV or breather hole double as the filler hole?

D. Ocean
Miami, FLA

Dec 24, 2004 | 08:54 PM

markdtn

Le Mans Master

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From: Chattanooga TN

You want to be sure the PCV has a baffle behind it, otherwise you will have oil consumption problems.

Dec 24, 2004 | 09:11 PM

74FLCONV

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Melting Slicks

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From: Manalapan FL

Most of the valve covers come with baffles. But where do I fill if both openings are baffled?

D. Ocean
Miami, FLA

Dec 24, 2004 | 09:16 PM

Double Aught

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Merry Christmas, everyone!

Dec 25, 2004 | 12:31 AM

randy814u

Melting Slicks

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From: Salem Oregon

You can fill through a baffled hole. I just put down two quarts through one side, then went over to the other side and dumped two quarts, and no problems.

Dec 25, 2004 | 05:28 AM

guppie

Melting Slicks

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From: Dayton Area Ohio

St. Jude Donor '08

The set I just bought from Corvette Central has all 3 holes.

Dec 25, 2004 | 07:45 AM

norvalwilhelm

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From: Waterloo ontario Canada

I like the 2 holes. One for the pvc and one for the breather. I don't like the push in breathers and prefer a line from the air cleaner. It keeps the motor cleaner, push in breathers can become messy with oil fumes.

Dec 25, 2004 | 05:55 PM

markdtn

Le Mans Master

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From: Chattanooga TN

I understand now, I thought you meant 3 holes per cover. Yes, either 2 or 3 will work. You can fill and vent through 1 and PCV in the other or have 1 for fill, 1 vent, and 1 PCV. Norval is correct that the unit vent/fill caps do tend to ooze a bit and make your engine dirty.