air cleaner /hood interference

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Jan 3, 2015 | 06:25 PM

caryb78

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Racer

Joined: Jan 2013

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air cleaner /hood interference

Installed aluminum heads now have interference with air cleaner not much but enough to keep it from latching. Anyone else have this happen? Solution? 78 pace car, L-82

Last edited by caryb78; Jan 3, 2015 at 06:30 PM.

Jan 3, 2015 | 07:26 PM

7t9l82

Le Mans Master

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From: melbourne florida

2023 C3 of the Year Finalist - Modified

are you sure your latches or cable aren't sticking? its hard to imagine a set of heads made any difference.

Jan 3, 2015 | 07:30 PM

BKbroiler

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From: Lebanon Township New Jersey

The only change you made was the heads and now your air cleaner hits the hood? That's not possible. Did you change intake manifold too?
Assuming that's the case you need a drop base, open element air cleaner.
Don't drive with the air cleaner contacting the hood.

Jan 3, 2015 | 09:21 PM

dprinter1

Melting Slicks

Joined: Jul 2005

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From: Norfolk Virginia

Quote:

Originally Posted by BKbroiler

The only change you made was the heads and now your air cleaner hits the hood? That's not possible. Did you change intake manifold too?
Assuming that's the case you need a drop base, open element air cleaner.
Don't drive with the air cleaner contacting the hood.

Can you recommend a GOOD source for one?

Jan 4, 2015 | 09:16 AM

BKbroiler

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From: Lebanon Township New Jersey

Quote:

Originally Posted by dprinter1

Can you recommend a GOOD source for one?

See Item 505-50004 in the Jegs link below. I use that with a 3" high element, an RPM Air Gap manifold and a 3/4 inch adapter with a Qjet under the stock hood on my 77. (A chrome bumper car will have less hood clearance however.)

http://www.jegs.com/webapp/wcs/store...se+air+cleaner

Last edited by BKbroiler; Jan 4, 2015 at 09:19 AM.

Jan 4, 2015 | 11:23 AM

caryb78

Thread Starter

Racer

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interference

Quote:

Originally Posted by BKbroiler

Didn't change the intake. Added shim to latch and it works but gap is higher. Hood was up for about 2 months if that means anything. It has the dual ram air cleaner and is just firm against the insulation. What is the issue with driving it???

Thanks for your responses

Jan 4, 2015 | 11:25 AM

caryb78

Thread Starter

Racer

Joined: Jan 2013

Posts: 300

Likes: 10

Quote:

Originally Posted by 7t9l82

are you sure your latches or cable aren't sticking? its hard to imagine a set of heads made any difference.

Nope, not the latches. Added a shim and they latch but now stick up about an 1/8.

Jan 4, 2015 | 03:29 PM

BKbroiler

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From: Lebanon Township New Jersey

Quote:

Originally Posted by caryb78

Regardless of what heads you have the intake manifold sits at the same elevation. If your heads raised the intake itself you would have gaps at the front and back of the manifold where it meets the block. If there are no gaps there then your manifold is at the same place it was before.
If your air cleaner is contacting the hood with the engine not running, or idling, it will seriously scrape the hood as the engine lifts a little during acceleration (assuming you don't have solid motor mounts).