Hood clearance
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From: Northern NJ
Car: 1990 IROC-Z
Engine: 355/AFR 210
Transmission: POWERGLIDE
Axle/Gears: MOSER 12 BOLT 5.36 1/8 MILE ONLY
Hood clearance
I'm trying to choose an intake for my car. I will be using Z28 style hood. I know a performer will work but I'm not sure about Performer RPM. My concern is what air cleaner will fit best if any With Holly double pumper carburetor. Thanks Frank
Last edited by FJA1791; Feb 9, 2021 at 04:45 PM.
Joined: Oct 2013
Posts: 2,611
Likes: 156
From: Louisville, KY
Car: 1983 Z28
Engine: 385 Fastburn
Transmission: T-5
Axle/Gears: BorgWarner 9-bolt posi, 3.27 gears
Re: Hood clearance
If you're trying to use the stock hood with a carb and high-rise intake, a drop-base air cleaner would be your best bet.
Thread Starter
Member
iTrader: (3)
Joined: Sep 2010
Posts: 254
Likes: 29
From: Northern NJ
Car: 1990 IROC-Z
Engine: 355/AFR 210
Transmission: POWERGLIDE
Axle/Gears: MOSER 12 BOLT 5.36 1/8 MILE ONLY
Re: Hood clearance
Sorry for the confusion...I just want to know if I can use an Edlebrock Performer RPM carb intake with a stock Z28 hood with an air cleaner without hitting.
Thanks Frank
Last edited by FJA1791; Feb 9, 2021 at 04:46 PM.
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Joined: Sep 2004
Posts: 2,069
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From: MN
Car: 85 SC, 86 Berlinetta
Engine: V6, V8
Transmission: 700r4, 700r4
Re: Hood clearance
I've used an RPM Airgap (IIRC part # 7501) and it fits with a drop base air cleaner. It barely clears a stock hood, I didn't need to, but I cut part of the inner metal away for clearance anyways. A Z28 hood may be different.
I actually have a spacer (IIRC, 1/2") on mine as well, I needed the room for one of the vacuum ports. There was an interference issue with the Holly DP and the position of the port.
I think this was it:
http://www.summitracing.com/parts/edl-7501
Edit: More info that might help is that I had new poly engine mounts, and the air cleaner lid that I used is raised a little. It's a standard 14” dia. x 3” high.
I have a Z28 hood on my V6 and after looking at it I'm a little apprehensive about it fitting actually. Most people are using that intake without issue so it may be possible squeeze it in with that intake if you were to minimize everything.
You should be able to use clay or something to leave an impression for where the air cleaner will meet up with the hood. Then you can look at that area of the hood to see if you can clearance it or not.
I actually have a spacer (IIRC, 1/2") on mine as well, I needed the room for one of the vacuum ports. There was an interference issue with the Holly DP and the position of the port.
I think this was it:
http://www.summitracing.com/parts/edl-7501
Edit: More info that might help is that I had new poly engine mounts, and the air cleaner lid that I used is raised a little. It's a standard 14” dia. x 3” high.
I have a Z28 hood on my V6 and after looking at it I'm a little apprehensive about it fitting actually. Most people are using that intake without issue so it may be possible squeeze it in with that intake if you were to minimize everything.
You should be able to use clay or something to leave an impression for where the air cleaner will meet up with the hood. Then you can look at that area of the hood to see if you can clearance it or not.
Last edited by Scorpner; Apr 4, 2014 at 08:23 PM.
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From: GO PACK GO
Car: 83Z28 HO
Engine: Magnacharged Dart Little M 408
Transmission: G Force 5 speed
Axle/Gears: Moser 9" w/Detroit Trutrac
I've used an RPM Airgap (IIRC part # 7501) and it fits with a drop base air cleaner. It barely clears a stock hood, I didn't need to, but I cut part of the inner metal away for clearance anyways. A Z28 hood may be different. I actually have a spacer (IIRC, 1/2") on mine as well, I needed the room for one of the vacuum ports. There was an interference issue with the Holly DP and the position of the port. I think this was it: http://www.summitracing.com/parts/edl-7501 Edit: More info that might help is that I had new poly engine mounts, and the air cleaner lid that I used is raised a little. It's a standard 14” dia. x 3” high. I have a Z28 hood on my V6 and after looking at it I'm a little apprehensive about it fitting actually. Most people are using that intake without issue so it may be possible squeeze it in with that intake if you were to minimize everything. You should be able to use clay or something to leave an impression for where the air cleaner will meet up with the hood. Then you can look at that area of the hood to see if you can clearance it or not.
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iTrader: (4)
Joined: Sep 2004
Posts: 2,069
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From: MN
Car: 85 SC, 86 Berlinetta
Engine: V6, V8
Transmission: 700r4, 700r4
Re: Hood clearance
Oh really? I didn't know about the intake. I was able to use a 90° piece from the original intake which was actually lower profile. I'm thinking that his should work with that air cleaner.
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iTrader: (4)
Joined: Oct 1999
Posts: 4,211
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From: GO PACK GO
Car: 83Z28 HO
Engine: Magnacharged Dart Little M 408
Transmission: G Force 5 speed
Axle/Gears: Moser 9" w/Detroit Trutrac
Re: Hood clearance
Since my original Q-Jet had a fitting on the back of the carb itself, I didn't have any stock one to use in the first place....but if you have one, and it works, use it!
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Supreme Member
iTrader: (4)
Joined: Oct 1999
Posts: 4,211
Likes: 3
From: GO PACK GO
Car: 83Z28 HO
Engine: Magnacharged Dart Little M 408
Transmission: G Force 5 speed
Axle/Gears: Moser 9" w/Detroit Trutrac
Re: Hood clearance
Since as I recall, my original Q-Jet had a fitting on the back of the carb itself, so I didn't have any stock one to use in the first place....but if you have one, and it works, use it!
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: Hood clearance
I'm have a holley 4160 and the performer rpm intake with a 14th filter. It has a drop base filter and the hood is pushing down on the air filter lid when it is closed.
Thread Starter
Member
iTrader: (3)
Joined: Sep 2010
Posts: 254
Likes: 29
From: Northern NJ
Car: 1990 IROC-Z
Engine: 355/AFR 210
Transmission: POWERGLIDE
Axle/Gears: MOSER 12 BOLT 5.36 1/8 MILE ONLY
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Joined: Oct 2013
Posts: 2,611
Likes: 156
From: Louisville, KY
Car: 1983 Z28
Engine: 385 Fastburn
Transmission: T-5
Axle/Gears: BorgWarner 9-bolt posi, 3.27 gears
Re: Hood clearance
My set up is: Vortec Eliminator high-rise single plane intake (I think it's taller than an edelbrock RPM air gap), a holley 750 dp carb, and a 14"x3" drop base air cleaner that has about a 1.25" drop.
Even with the drop base air cleaner, approximately half of the cleaner sticks up into my 2" cowl induction hood. (it's kindof awesome looking down the cowl from the driver's seat and seeing it but I digress).
My engine is under my name, it's a gm 350
Joined: Jun 2005
Posts: 1,245
Likes: 8
From: Fairfield, CA
Car: 91camaro rs,2014 silverado 5.3L
Engine: 5.7Lcarb,5.3L
Transmission: 700-r4, 6L80
Axle/Gears: strange 3.73's
Re: Hood clearance
yeah i think my drop base is 1.25 also. eventually i will use a non drop base and cut a circle in my hood and attach my cowl
Thread Starter
Member
iTrader: (3)
Joined: Sep 2010
Posts: 254
Likes: 29
From: Northern NJ
Car: 1990 IROC-Z
Engine: 355/AFR 210
Transmission: POWERGLIDE
Axle/Gears: MOSER 12 BOLT 5.36 1/8 MILE ONLY
Re: Hood clearance
No worries.
My set up is: Vortec Eliminator high-rise single plane intake (I think it's taller than an edelbrock RPM air gap), a holley 750 dp carb, and a 14"x3" drop base air cleaner that has about a 1.25" drop.
Even with the drop base air cleaner, approximately half of the cleaner sticks up into my 2" cowl induction hood. (it's kindof awesome looking down the cowl from the driver's seat and seeing it but I digress).
My engine is under my name, it's a gm 350
My set up is: Vortec Eliminator high-rise single plane intake (I think it's taller than an edelbrock RPM air gap), a holley 750 dp carb, and a 14"x3" drop base air cleaner that has about a 1.25" drop.
Even with the drop base air cleaner, approximately half of the cleaner sticks up into my 2" cowl induction hood. (it's kindof awesome looking down the cowl from the driver's seat and seeing it but I digress).
My engine is under my name, it's a gm 350
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