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Lets talk hood clearance

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Old Apr 16, 2007 | 11:27 PM
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Default Lets talk hood clearance

I'm planning on dropping in a 383 with an AirGap manifold. Searching the forum I can't get a straight answer if the stock 75 hood will have the clearance. Some say yes, some say no. Some say get a drop base.

Just a thought, does the LT-1 hood provide anymore clearance than the stock 75?

If I can't get clearance with my stock hood, is a BB hood the only way to go? No big2bird, I'm not going to cut a hole in my hood or any other smartass idea you can come up with.
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Old Apr 16, 2007 | 11:35 PM
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Is there a motor and hood in and on the car right now?
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Old Apr 16, 2007 | 11:45 PM
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Originally Posted by foxymophandlpapa

Just a thought, does the LT-1 hood provide anymore clearance than the stock 75?



If I can't get clearance with my stock hood, is a BB hood the only way to go?
I don't believe anyone makes a LT-1 hood that will fit a 75, without the wiper door 68-72 it would be too short

That would leave you with the long L88 hood or something custom.
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Old Apr 16, 2007 | 11:46 PM
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Originally Posted by foxymophandlpapa
I'm planning on dropping in a 383 with an AirGap manifold. Searching the forum I can't get a straight answer if the stock 75 hood will have the clearance. Some say yes, some say no. Some say get a drop base.

Just a thought, does the LT-1 hood provide anymore clearance than the stock 75?

If I can't get clearance with my stock hood, is a BB hood the only way to go? No big2bird, I'm not going to cut a hole in my hood or any other smartass idea you can come up with.
The 383 doesn't make any difference;the RPM airgap does....my 74 has the stock hood,rpm air gap and 2" drop base K&N on holley 750 vac sec....it just fits after i took off the wingnut and used a flat nut instead and trimmed the carb- aircleaner bolt right down...john
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Old Apr 17, 2007 | 01:23 PM
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Originally Posted by jdunne
The 383 doesn't make any difference;the RPM airgap does....my 74 has the stock hood,rpm air gap and 2" drop base K&N on holley 750 vac sec....it just fits after i took off the wingnut and used a flat nut instead and trimmed the carb- aircleaner bolt right down...john
Well I put the 383 info in there incase anyone was going to try to recommend using a performer RPM or something that would be no difference in height, but in this case wouldn't provide the flow I need. Its good to hear though you got it to fit.

Originally Posted by Durango_boy
Is there a motor and hood in and on the car right now?
No, last I heard to put in a new motor, you had to take the old one out. There is the original hood.

I'm really trying to keep this as stock looking as possible, and would like to stay away from the L-88 hood. Of course the LT-1 hood isn't stock, but I like the look better than the bulge of hte L-88.

Anyone else have problems with the RPM airgap?
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Old Apr 17, 2007 | 02:37 PM
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The LT-1 hood has less clearance & used a 2" dropbase.

The 76-79 med. rise hood allows the Victor Jr, RPM & others on SB w/ aftermarket (about 1 1/4") dropbase filter (about 3") & Holley.
So you can get it under a med. rise 73-75 hood if you are serious about it.
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Old Apr 17, 2007 | 06:03 PM
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Originally Posted by Ganey
The LT-1 hood has less clearance & used a 2" dropbase.

The 76-79 med. rise hood allows the Victor Jr, RPM & others on SB w/ aftermarket (about 1 1/4") dropbase filter (about 3") & Holley.
So you can get it under a med. rise 73-75 hood if you are serious about it.
What about my stock Q-jet?
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Old Apr 17, 2007 | 10:44 PM
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According to the techs at Ecklers(I called last week), the L88 hood only gives about 1/4" more clearance than the LT1 style. So despite the looks I guess it's not really that much taller. The looks sure are decieving though. Can anyone confirm?
-CR
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Old Apr 18, 2007 | 12:14 AM
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I know with my stock 72 hood and the performer EPS intake(not the rpm air gap, the RPM air gap is in my avatar photo) I had to use a 1 1/4" drop base cut for the choke housing, a 14" by 2" tall filter and a the edelbrock signature flat top ac lid. Using all this I had 1/4" clearance left. The first photo is the Edelborck Performer EPS intake with drop base, the second id the Edelbrock RPM Air-Gap intake. As you can see their is quite a height difference.
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Old Apr 18, 2007 | 06:43 AM
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I've fit a Performer RPM with a Q-Jet and a Demon, and a Victor Jr. with a Demon under the stock 78 hood (which I believe is the same as the 75 hood) using a Summit drop base 14x3 air cleaner with a breather lid.
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Old Apr 18, 2007 | 08:46 AM
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Originally Posted by King Lear
I know with my stock 72 hood and the performer EPS intake(not the rpm air gap, the RPM air gap is in my avatar photo) I had to use a 1 1/4" drop base cut for the choke housing, a 14" by 2" tall filter and a the edelbrock signature flat top ac lid. Using all this I had 1/4" clearance left. The first photo is the Edelborck Performer EPS intake with drop base, the second id the Edelbrock RPM Air-Gap intake. As you can see their is quite a height difference.
Hmm... we fit a performer EPS with a Holley no problem under the stock hood with the stock air filter assembly.

Originally Posted by torqvette
I've fit a Performer RPM with a Q-Jet and a Demon, and a Victor Jr. with a Demon under the stock 78 hood (which I believe is the same as the 75 hood) using a Summit drop base 14x3 air cleaner with a breather lid.
This is an airgap though, as King Lear's photo shows, is much taller than the Performer. I have no doubt the Performer will fit as we have done without a dropbase. The question is can I fit an airgap with the stock Q-jet under a 75 hood?
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Old Apr 18, 2007 | 09:55 AM
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Originally Posted by foxymophandlpapa

No, last I heard to put in a new motor, you had to take the old one out. There is the original hood.
Not necessarily.

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Old Apr 18, 2007 | 03:10 PM
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Originally Posted by dgruenke
Not necessarily.

Can I fit the stock hood over that?

Anywho, anyone use their stock Q-jet on the Airgap and been able to use the stock hood?
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Old Apr 18, 2007 | 03:31 PM
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I ran Performer AirGap in my 72 with a stock hood. Less clearance than a 75.
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Old Apr 18, 2007 | 04:39 PM
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would an airgap fit under a 74 stock hood?
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Old Apr 18, 2007 | 04:42 PM
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Originally Posted by KJL
I ran Performer AirGap in my 72 with a stock hood. Less clearance than a 75.
Excellent, thats what I want to hear. Did you use a drop base? What kind of carb are you using?

Originally Posted by 74batmobile
would an airgap fit under a 74 stock hood?
If it can fit under a 75, it will fit under a 74 -- same hood.
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Old Apr 18, 2007 | 06:21 PM
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Originally Posted by 74batmobile
would an airgap fit under a 74 stock hood?
Does on my 74R....see my earlier post.john
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Old Apr 19, 2007 | 02:06 AM
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Originally Posted by KJL
I ran Performer AirGap in my 72 with a stock hood. Less clearance than a 75.
I thought that as well, I think whatever year they got rid of the wiper door opening the hood got an 1" or so taller. My father in laws 80 has at least 1 to 2 inches more then my 72.
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Old Apr 19, 2007 | 02:11 AM
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Originally Posted by foxymophandlpapa
Excellent, thats what I want to hear. Did you use a drop base? What kind of carb are you using?



If it can fit under a 75, it will fit under a 74 -- same hood.
I would get it from Jegs, they have a 12 month return policy, I would get the performer RPM air gap first and try it, then if that doesn't work then I would try the regular performer air gap. I think you have more clearance with your 75 then I do with the 72.
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Old Apr 19, 2007 | 06:56 AM
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Yes, the med rise 73- hood has more clearance than the previous low rise hoods. The Performer 2101 is about 1/4 inch taller than stock.
The Performer Air-Gap is about 1/4 inch taller than 2101 & should fit.
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