Intake for 500cube 440
#2954385
08/16/21 05:56 PM
08/16/21 05:56 PM
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Joined: Aug 2003
Posts: 1,578
KOS
OP
pro stock
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OP
pro stock
Joined: Aug 2003
Posts: 1,578
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Hey guys what do you think about an eddy ch28 2x4 intake with 2 600cfm eddy carbs on a 4.15crank 440 with cnc ported stealth heads 580/250@50 cam,.or a single plane weaned 7512 with a 950holley?has to fit under stock hood for a 70 runner.
Last edited by KOS; 08/16/21 05:56 PM.
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Re: Intake for 500cube 440
[Re: KOS]
#2954400
08/16/21 06:20 PM
08/16/21 06:20 PM
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Joined: Feb 2005
Posts: 4,333 Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,333
Prospect, PA
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In my limited dyno testing on a 500 inch motor with similar cam size (248 @ 0.050, 0.605"), the Holley SD with a small venturi 950 made considerably more peak power and more average power than the six pack. I think most folks state or claim the six pack is as good or better than the Eddy 2x4. I don't know if that is true, or how the Weiand compares to the SD.
With that, my guess is if the goal is just max power between those two, probably the Weiand/950, but that is a lot of extrapolating to come to that conclusion. I'm not sure any of this helps.
FWIW, the 440 2D and the SD were similar in power overall. The SD had a few more hp up top, but the 2D had a little more in the lower rpm resulting in about the same average power. The 2D will fit under the hood.
Last edited by BSB67; 08/16/21 06:27 PM.
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Re: Intake for 500cube 440
[Re: DaveRS23]
#2954461
08/16/21 09:37 PM
08/16/21 09:37 PM
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Joined: Dec 2013
Posts: 4,804 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,804
Wichita
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[align:right][/align] On my 499 wedge, I tried several different carbs. The Dominator won and drove as good as the 950 after Dominic (ThumperDart) got done with it. My favorite intake was the Holley SD modified to take the Dominator. It was an easy mod that I did myself. And it fit under the hood, too. So you modified a Holley Street Dominator with the 4150 flange to accept a Dominator carb?! 🤔
'63 Dodge 330
11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
9.92 @ 135mph with a 350 shot of nitrous and 93 octane pump. 1.43 60 ft. 3,750 lbs.
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Re: Intake for 500cube 440
[Re: GY3]
#2954554
08/17/21 08:54 AM
08/17/21 08:54 AM
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Joined: Jan 2003
Posts: 12,802 Benton, IL.
DaveRS23
Master of nothing...
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Master of nothing...
Joined: Jan 2003
Posts: 12,802
Benton, IL.
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Yep, it is fairly simple.
I got 4 aluminum bolts, screwed them in till tight, and cut them flush. Used a 4500 gasket for a template and drilled and taped the 4 new holes and opened the plenum up. Not a big deal at all and worked just fine.
Master, again and still
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Re: Intake for 500cube 440
[Re: topside]
#2954578
08/17/21 10:02 AM
08/17/21 10:02 AM
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Joined: Jan 2003
Posts: 13,492 Marion, South Carolina [><]
an8sec70cuda
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 13,492
Marion, South Carolina [><]
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Is there a penalty in TQ or HP using the SD vs. Eddy Perf RPM intake on a street application? The RPM can be a tight fit for stock air cleaners clearing the hood on some cars, and sometimes a dropped base can't be employed. I would assume the RPM would make more power, but a stealthy street motor's gonna spend more time in the 1500-3500 RPM range. A little loss in lowend, but not very noticeable. Years ago I did a same day track test b/t the two manifolds on my old 440 that ran 11.40s at 117 mph in my cuda. The ET and MPH were almost identical, but the 60 foot was only .01-.02 slower w/ the Holley SD. On the street I really couldn't tell a difference. The car had 4.10s and a 3500 stall FWIW.
CHIP '70 hemicuda, 575" Hemi, 727, Dana 60 '69 road runner, 440-6, 4 speed, Dana 60 '71 Demon 340, no drivetrain, on blocks behind the barn '73 Chrysler New Yorker, 440, 727, 8.75 '90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt '06 GMC 2500HD LBZ Duramax
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Re: Intake for 500cube 440
[Re: KOS]
#2954589
08/17/21 10:26 AM
08/17/21 10:26 AM
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Joined: Dec 2013
Posts: 4,804 Wichita
GY3
master
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master
Joined: Dec 2013
Posts: 4,804
Wichita
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wow you guys really love the Holley SD.....ive seen em around and think you can still get em I just don't like the look of them. I'm a big fan! It keeps everything under my stock, flat hood even with a nitrous plate and phenolic spacer.
'63 Dodge 330
11.19 @ 121 mph Pump gas, n/a, through the mufflers on street tires with 3.54's. 3,600 lbs.
9.92 @ 135mph with a 350 shot of nitrous and 93 octane pump. 1.43 60 ft. 3,750 lbs.
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Re: Intake for 500cube 440
[Re: KOS]
#2954610
08/17/21 11:52 AM
08/17/21 11:52 AM
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Joined: Jan 2003
Posts: 31,201 Oregon
AndyF
I Win
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I Win
Joined: Jan 2003
Posts: 31,201
Oregon
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wow you guys really love the Holley SD.....ive seen em around and think you can still get em I just don't like the look of them. The Holley SD is very ugly but it seems to work okay. The dual carb Edelbrock manifold has a nice look to it and it works really well with the correct Edelbrock duals. I've run that combo before and it is nice for a street driver.
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Re: Intake for 500cube 440
[Re: GY3]
#2954618
08/17/21 12:07 PM
08/17/21 12:07 PM
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Joined: Jul 2003
Posts: 4,825 Holland MI Ottawa
2boltmain
master
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master
Joined: Jul 2003
Posts: 4,825
Holland MI Ottawa
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Dual quad Edelbrock set up may not make the most peak power but it looks perfect on a 440. Plus it does work very well!
Last edited by 2boltmain; 08/17/21 12:08 PM.
Keep old mopars alive.
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Re: Intake for 500cube 440
[Re: topside]
#2954647
08/17/21 12:46 PM
08/17/21 12:46 PM
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Joined: Feb 2005
Posts: 4,333 Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,333
Prospect, PA
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Is there a penalty in TQ or HP using the SD vs. Eddy Perf RPM intake on a street application? The RPM can be a tight fit for stock air cleaners clearing the hood on some cars, and sometimes a dropped base can't be employed. I would assume the RPM would make more power, but a stealthy street motor's gonna spend more time in the 1500-3500 RPM range. I believe the answer is yes for down low power, but not up top, but I also think the how much will depending on the engine specifics. I think when you cross the 450-500 hp threshold the SD will start making more peak hp. The higher the hp application the difference will become greater. Regarding "penalty in TQ" I'm not sure exactly how to respond. I'll assume you me down low power, or a lower rpm TQ peak. In the dyno testing I was actually surprised how much the SD gave up below below 4000 rpm on a 508 cuin engine. It was not huge, but I guess I was expecting something closer to zero difference between the SD and dual planes tested, which were nearly identical below 4000. Then you need to ask if giving up a little low end on a 500 inch motor matters.
Last edited by BSB67; 08/17/21 12:47 PM.
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Re: Intake for 500cube 440
[Re: BSB67]
#2954657
08/17/21 01:08 PM
08/17/21 01:08 PM
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Joined: Mar 2006
Posts: 9,973 MI, usa
dvw
master
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master
Joined: Mar 2006
Posts: 9,973
MI, usa
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My buddy runs the Eddy 2x4 intake with 2 600 Eddy's in his 65 Belvedere (all stock body street car). 440+.030",10.0-1, .557 Mopar solid, unported Eddy RPMs, cheap headers, decent converter, 4.10 on 93 pump gas. Will run 11.30-11.40 anywhere. Been 11.28 best. Doug
Last edited by dvw; 08/17/21 01:09 PM.
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Re: Intake for 500cube 440
[Re: BSB67]
#2954663
08/17/21 01:17 PM
08/17/21 01:17 PM
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Joined: Jan 2003
Posts: 12,802 Benton, IL.
DaveRS23
Master of nothing...
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Master of nothing...
Joined: Jan 2003
Posts: 12,802
Benton, IL.
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I'm not sure I understand the concern over 'low end' torque. With a lot of cubic inches, I have not had any converter that wouldn't flash well above 3,500. In fact, my biggest issue has been getting a converter that doesn't feel mushy down low. And even you stick guys, do you really feel a need for a little more torque way down low? Now understand that I don't think that there is ever too much torque, but here we are talking about the difference that intakes make way down low. A mute point in my experience.
Master, again and still
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Re: Intake for 500cube 440
[Re: DaveRS23]
#2954709
08/17/21 02:47 PM
08/17/21 02:47 PM
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Joined: Jan 2003
Posts: 4,806 Moved to N.E. Tennessee
GomangoCuda
master
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master
Joined: Jan 2003
Posts: 4,806
Moved to N.E. Tennessee
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I suppose it matters to the people that put 2.76 to 3.23 gears in a muscle car that came with 4.10s because they think it should be able to cruise 75 mph at 1500 rpm like a modern car that has Variable Valve Timing, Variable Length Intake Manifold, 2 overdrives and a lockup converter. I'm not one of those people. I like 4.10 gears. They work the same now as they worked in 1970. 3500 rpm on the highway for short distances won't hurt a thing.
An intake that works at 1500 rpm will not help if your cam doesn't get happy until 3000. Try to match your cam, intake and gears to the rpm range you want to spend time in.
In theory, there is no difference between theory and practice. In practice, there is.
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Re: Intake for 500cube 440
[Re: DaveRS23]
#2954903
08/17/21 11:13 PM
08/17/21 11:13 PM
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Joined: May 2019
Posts: 722 Lake Villa Il
INTMD8
super stock
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super stock
Joined: May 2019
Posts: 722
Lake Villa Il
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I'm not sure I understand the concern over 'low end' torque. With a lot of cubic inches, I have not had any converter that wouldn't flash well above 3,500. In fact, my biggest issue has been getting a converter that doesn't feel mushy down low. And even you stick guys, do you really feel a need for a little more torque way down low? Now understand that I don't think that there is ever too much torque, but here we are talking about the difference that intakes make way down low. A mute point in my experience. I agree. For whatever reason it seems to be what many prefer. I attribute it to a difference in driving style.
69 Charger. 438ci Gen2 hemi. Flex fuel. Holley HP efi. 650rwhp @7250 510rwtq @5700
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