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Author Topic: Holley Street Dominator VS Edelbrock RPM for 440  (Read 5371 times)

Offline Haney

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Holley Street Dominator VS Edelbrock RPM for 440
« on: April 20, 2011 - 04:02:47 PM »
I know there are several people here on CC.com that really like the Street Dominator intakes for 440's.  Are there any noticable performance differences between the two intakes on a mild street 440?  My car is a 71 440, TRW flattops, 10:1, OOTB Eddy Heads, Comp XE285HL cam, 750 speed Demon carb, MP Ignition, 2" Doug's headers, 2.5 inch exhaust to back with x-pipe, 4-speed, 3.91's in a 73 Cuda. 

I have a 4-bbl OVAL air cleaner that I want to run on the car.  It will not clear the stock hood with the RPM.  They guy I bought it from (Ebay) said he run it on a Cuda with a SD and Holley and it cleared the hood.  Anybody know if a SD is shorter than a RPM and by how much.  According to the (front-back)/2 measurements for both intakes, it looks like about 5/8's of an inch.
  Does this sound right?

One more question..... is there any difference betwee the current SD intake that you can still by new (P/N 300-14) and the old ones?  Is there a specific vintage intake that works better than others? 

Thanks in advance.....
« Last Edit: April 20, 2011 - 04:05:50 PM by Haney »
1969 Barracuda Coupe, 340, 4-speed

Cuda-Challenger.com

Holley Street Dominator VS Edelbrock RPM for 440
« on: April 20, 2011 - 04:02:47 PM »



Offline MEK-Dangerfield

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #1 on: April 20, 2011 - 04:53:47 PM »
I'm not sure I can help you much, but I'll tell you my story. I have a SD intake on my 440, with a proform carb. I had to use a K&N air cleaner with a drop base to get it to fit. This is a Challenger with a flat hood, so I'm not sure what you have.

I'm not aware of any differences between the new SD intakes, and the older ones.

Mike

1970 Challenger - SOLD
2013 SXT+++++++++++


Offline Road_Runner

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #3 on: April 20, 2011 - 08:07:00 PM »
Are you trying to use a Mopar oval air cleaner like those used on 4 bbl airgrabber cars such as 70 Roadrunners?  If so, those are pretty tall and I wouldn't be surprised if you'd need a basically flat intake similar to what the stock cars had back then, something like the Mopar M1 instakes.  One thing you might look at is the 440 versions of that air cleaner were around 1" lower.  Good luck.

Later, Jim
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Offline Chryco Psycho

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #4 on: April 21, 2011 - 01:47:51 AM »
the SD is significantly lower than the RPM ,with a drop base we got a 4" filter under a 67 R/t flat hood

Offline Haney

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #5 on: April 21, 2011 - 07:29:01 AM »
the SD is significantly lower than the RPM ,with a drop base we got a 4" filter under a 67 R/t flat hood

Are there any significant performance differences between the two intakes?

Is a Street Dominator a Street Dominator? In other words, is there any flavor of th SD's made of ther years that are not good or have there been any significant design changes?

Thanks,
Jamie
1969 Barracuda Coupe, 340, 4-speed

Offline polarbear123

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #6 on: April 21, 2011 - 08:28:32 AM »
I just rebuilt my 1973 440 with a RPM and edelbrock 800 carb had to use K&N drop base to fit under my 1970 Cuda. The throttle response is awesome. The machine shop that rebuilt it was impressed and he is a chevy and Holly guy.

Offline Haney

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #7 on: April 21, 2011 - 08:54:29 AM »
I just rebuilt my 1973 440 with a RPM and edelbrock 800 carb had to use K&N drop base to fit under my 1970 Cuda. The throttle response is awesome. The machine shop that rebuilt it was impressed and he is a chevy and Holly guy.

Tell me more about your build.....   Cam, compression, exhaust, ignition, etc........
1969 Barracuda Coupe, 340, 4-speed

Offline polarbear123

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #8 on: April 21, 2011 - 10:59:58 AM »
 eagle rotating assembly,RPM intake,edelbrock 800,stage V heads, 10-1 comp, hydraulic flat tappett......gross valve lift .488 / .491 (I / X)....duration @ .006" 274 / 286, hooker comp headers, machined .30 over. 500 HP

Offline mopar12372

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #9 on: April 21, 2011 - 11:26:45 AM »
well being a fan of the performer RPM .  the intake is a duel plane manifold wich in the past didnt make much more power than the stock vs the regular performer . the new verson of the manifold performer RPM is exactly what it is a rpm duel plane with a great power curve. the raised verson simulates a single plane manifold wich are subject to reverson and if built too low to the engine like most od the old versons of the single plane wich at an idle could load up the engine due to design,  except for the (TEAM G  440 intake wich is exceptioal for a 440 /not the b verson wich puddles) . the raised performer rpm gives the best of both worlds (on the street/ strip) you get a broader power curve from a reasionable lower rpm all the way up to 6200 rpm wich is all the rb has because this engine makes everything down low (all out race engines are a different animal) . imop Bill
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Offline brads70

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #10 on: April 21, 2011 - 07:05:05 PM »
I'm running the SD with a Demon 850 with a oval Mopar style air cleaner. It just fits with the T/A hood!
Here is where I got the base from. http://hybrid-fiberglass-solutions.com/
Used a repop steel lid. I had custom air cleaner lid decals made up. I have some spares if you need one.




« Last Edit: April 21, 2011 - 07:07:42 PM by brads70 »
Brad
1970 Challenger 451stroker/4L60 auto OD
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Offline mopar12372

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #11 on: April 21, 2011 - 08:07:42 PM »
I'm running the SD with a Demon 850 with a oval Mopar style air cleaner. It just fits with the T/A hood!
Here is where I got the base from. http://hybrid-fiberglass-solutions.com/
Used a repop steel lid. I had custom air cleaner lid decals made up. I have some spares if you need one.







thats a great idea what hood are you running
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Offline brads70

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #12 on: April 21, 2011 - 09:16:11 PM »
I got the hood off E-Bay. Can't remember the sellers name but he is out of Texas?
Brad
1970 Challenger 451stroker/4L60 auto OD
Barrie,Ontario,Canada
Proud to own one of the best cars ever made!!!!!

My restoration thread 
http://www.cuda-challenger.com/cc/index.php?topic=59072.0
 My handling upgrade post
http://www.cuda-challenger.com/cc/index.php?topic=73985.0

Offline BB73Challenger

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #13 on: April 22, 2011 - 09:01:15 PM »
I think ultimately for a street car both will work well, and there probably be no noticeable difference.

I have a SD and was impressed with the numbers it posted in that shoot-out article above without having to be a "high rise".
It's sits pretty low.
Jeff from Cleveland, Ohio

Offline Haney

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Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #14 on: April 25, 2011 - 09:35:17 AM »
Thanks for ALL the great info and help!!!!  I really appreciate it.  I think I will swap out to a SD intake to see if I can get my air cleaner to fit.  I really like the look........

Thanks to all!!!
1969 Barracuda Coupe, 340, 4-speed

Cuda-Challenger.com

Re: Holley Street Dominator VS Edelbrock RPM for 440
« Reply #14 on: April 25, 2011 - 09:35:17 AM »