Has anyone ever used these heads?
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 77
Likes: 0
From: Florida
Car: 1991 Camaro RS
Engine: LT1
Transmission: Stalled 700R4
Axle/Gears: 3.23 Posi
Has anyone ever used these heads?
Im looking for a good set of heads to get the most out of my sbc 350. I have a Edelbrock 600cfm carb, Performer EPS intake, and I also am looking for a cam with about .500 lift. I was looking at these heads http://www.summitracing.com/parts/EDL-60899/ and wanted to know if anyone ever used then and what kind of power I could get. If anyone could give me a couple tips on what I should buy, Im looking to get 350-400HP out of it.
Thanks, Chris
Thanks, Chris
Supreme Member




Joined: Oct 2004
Posts: 4,528
Likes: 240
From: Henrietta NY
Car: 1984 Trans Am L69
Engine: Sniper EFI Powered 355
Transmission: WC T5 w/ Steel Support Plate
Axle/Gears: 3.42 10 Bolt Posi
Re: Has anyone ever used these heads?
Those are a damn fine head they should help you hit your mark. I would consider a edelbrock top end kit if I needed heads a cam and a manfold. But then again an airgap manifold should outperform yours.
Thread Starter
Junior Member
Joined: Dec 2010
Posts: 77
Likes: 0
From: Florida
Car: 1991 Camaro RS
Engine: LT1
Transmission: Stalled 700R4
Axle/Gears: 3.23 Posi
Re: Has anyone ever used these heads?
Would I be able to fit an air gap intake and my carb under my stock hood? I can always sell my intake to my cousin.
Thanks, Chris
Thanks, Chris
Joined: Dec 2005
Posts: 4,795
Likes: 15
From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: Has anyone ever used these heads?
From all accounts that I've been able to find, it will not fit under a stock hood. You'll need a drop base air clearner to get the air gap to fit because it's a high-rise intake.
TGO Supporter
Joined: Oct 2002
Posts: 9,067
Likes: 1
From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Re: Has anyone ever used these heads?
The RPM air gap will fit under a Camaro hood with a drop base air cleaner. I've done it. Friend of mine used an RPM air gap under a Trans Am hood as well with a drop base air cleaner. Its a tight fit, but it does fit.
Re: Has anyone ever used these heads?
That's using a traditional drop base from Moroso.
I've seen your post referring to a GM repop piece that has more than a 2" drop. What amount of drop do you have? How tall is the filter element? What I find with any drop base is that it puts the choke horn within about a 1/4" to 1/2" of the lid itself (when looking for maximum hood clearence) and that's not a good thing performance wise.
Last edited by skinny z; Feb 12, 2011 at 07:45 AM.
TGO Supporter
Joined: Oct 2002
Posts: 9,067
Likes: 1
From: Saskatoon, SK, Canada
Car: '83 Z28, '07 Charger SRT8
Engine: 454ci, 6.1 Hemi
Transmission: TH350, A5
Axle/Gears: 2.73 posi, 3.06 posi
Re: Has anyone ever used these heads?
I initially used just a generic 14x3 edelbrock chrome air cleaner which had around 1.5" drop, and it fit fine under a factory 'glass hood on my '83 Z28.
I went to the L88 air cleaner when I put a Holley 300-36 intake on the motor, which is significantly taller than the RPM. Got it under the same glass hood with the L88 air cleaner. It uses a 14x3 filter as well.
I got the air cleaner at Corvette Central. Its a repro part for a '69 Corvette 427 4bbl. Its designed for a Holley 4150 carb, but should work fine with a Qjet as well. I really like it. Expensive, but its a great problem solver. I'm using the same air cleaner now on my 454 big block, which has an tall RPM intake and 870 Holley under a 2" cowl hood.
I went to the L88 air cleaner when I put a Holley 300-36 intake on the motor, which is significantly taller than the RPM. Got it under the same glass hood with the L88 air cleaner. It uses a 14x3 filter as well.
I got the air cleaner at Corvette Central. Its a repro part for a '69 Corvette 427 4bbl. Its designed for a Holley 4150 carb, but should work fine with a Qjet as well. I really like it. Expensive, but its a great problem solver. I'm using the same air cleaner now on my 454 big block, which has an tall RPM intake and 870 Holley under a 2" cowl hood.
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Thread Starter
Junior Member
Joined: Dec 2010
Posts: 77
Likes: 0
From: Florida
Car: 1991 Camaro RS
Engine: LT1
Transmission: Stalled 700R4
Axle/Gears: 3.23 Posi
Re: Has anyone ever used these heads?
Thanks guys, now I hopefully won't have any problems.
Thanks, Chris
Thanks, Chris
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