Hello:

Does anyone know the advertised rpm range for this discontinued intake?

Its a low rise single plane with small ports for 318 heads.

Thanks for any help

Steve

Have one in the garage.Its a pretty tame intake.My kid ran it on the Charger with a small cam.It did run decent for what it was.Mainly a street intake.Rocky

Run it with a 4 hole spacer no less then 1 inch and go for 2 if you can it will help that intake out a lot. That intake is lacking in low torque the 4 hole will help that out

I don't think it was a high RPM or low RPM intake, the passages were short for RPM but skinney for TQ also you could get an open plenum or devided plenum, devided ones made better TQ and open ones made less. It was never a great intake, just sort of a missmatched head scratcher

I have used them on mild 360's w/port match that ran well, never ran one on a 318 but should be fine, those older 318's ran single plane 2bbl's in the early 70's

Still have one from 1978.Ran it on my 318 with a 340 resto cam and a 600 Holley,headrs and 2.25 exhaust.Worked great.

I think it was advertised as a 1500-4500 RPM intake?
It is actually a nice intake for a mild engine.

I have one that's going on a mild SB. spread bore/318 ports/divided (2 plane) plenum, didn't know it came in a single plane. I have a streetmaster single plane alum intake on a 318 right now.

How did it do? I'm getting ready to try a 66-67 273 four barrel intake on some 302 heads on a 69 318-3 block with a Summit cam with 455 lift.

let me back up a bit as I got the two em confused. I have a Holley street dominator intake unused as of yet & it is a spreadbore low rise single plane. the BB version of it gets very good praise. the one I did use on a 318 DD in my 65 dart was a Edelbrock streetmaster square bore single plane intake & the plenum is choked down to maintain velocity for a mileage build. I dont have an idea if it was good or not but for my app with an eddy 1406 I believe it was a good choice. It was concieved I believe in the (original) gas crunch of the 70's. If I get out there today I will take some pics of both. EDIT I think the SD you have in mind would be an excellent choice for your mild app

I always knew I wasn't really up to speed on all the stuff that's been available for the small blocks, and this post proves it.

I had never even heard of a street dominator for a 318 before.
So, I did a google search for some pics.
I don't think I've ever seen one before...... Or if I have, never really noticed what it was.

In looking at the pics....... It appears there was two versions of it.
One an open plenum single plane without an EGR provision, the other a split plenum single plane with a channel at the rear connecting the two rear runners together, and an EGR provision.

I had always thought the "318" single plane was the streetmaster intake.

My knowledge base has been expanded a little today

Assessing the expected usable rpm range from a couple of pics is probably pointless, but I'm going to say that a "well built" 318 with properly reworked heads and enough cam to get it there, could easily make power into the 6000rpm range using the non-EGR version of that manifold.

Figured I'd throw these in for a visual comparison:

Hey thanks for saving me the trouble of going outside to take some pics (its cold!) & the SD I have does not have that rear "channel" connecting the two rear runners.

It was the mid to late '70s., early '80s and the aftermarket was in a tizzy. Everyone wanted mileage and what they had was for power. PLUS, the EPA/CARB was threatening to outlaw ANY aftermarket stuff.

So, they went wild with experimentation and out of it came such gems as the Edelbrock Streetmaster and SP2P. Weiand I can't remember, but Holley came out with the Street Dominator. This is what we're talking about.

(severely edited from original post)Most were single plane. Most were for spreadbore carbs because that's what came on the majority of engines. Most were for EGR. The last two were to placate the EPA, IMHO.

Some worked extremely well, like the 440SD. Others worked less well. I believe the 383 Street Dominator is not nearly as good as the RB version, and the LA version was never known for its overwhelming power. For racing there were Strip Dominators.

The version of the Street Dominator that Fast 68 showed is the "Z" series and I believe it was only for the smallblock Chevy. (No, they were available for other smallblocks too).
The "Z" was for Zora Arkus-Duntov and it had the plenum divided and added a connector passage between the #7 and #8 runners. It was supposedly good for another 15 hp or so, my memory isn't clear about the claims. This was in the age of 200hp Corvettes. Some of you may know that in Corvette Land, Zora Arkus-Duntov is ranked higher than the Apostle Paul and slightly lower than Jesus Christ. So using "his idea" and getting his name was a big deal for chevy folks. It was supposed to rub off on the other makes, too, I guess.

It took a few years until Edelbrock showed up with the traditional two-plane Performer series that got back to the traditional separation of dual plane for the street, single plane for top end power.

R.

All four of the intakes I posted pics of are clearly sb mopar intakes...... No sb Chevies there.

Looks like they had both versions of the intakes for sb Chevies as well.

Easy to differentiate between the Chevy and mopar intakes.....
Chevy has the hole for the dist, which is on the other side of the cam, intake bolt holes are all in a line, smaller thermostat housing is used, no water pump bypass fitting, uses a different style choke.

I also found pics of SB Ford street dominators with and without the rear runner connector channel.

Looks like there is a third variant for the sb mopar.....
Single plane, open plenum, with EGR provision.

thats the Holley street dominator small block intake that I have (plus the streetmaster and a torquer 2)

Boy, did I get my rear end handed to me today. That's what I get, I guess. Most Street Dominators were single plane, but I have looked at pictures of a few dual-plane SDs, mostly for smallblock chevies and fords. For some engines there were versions with EGR and without EGR. I believe for some engines, only EGR versions were made. My mid-'80s Summit catalog is buried so I can't get to it quickly. There were even Street Dominators for 2300cc Pinto engines.

The Z series were available for smallblock Chevy, Ford and Mopar. Even though they had split plenums, they were single plane. I haven't seen any for other engines although they may be out there.

In my research I found an interesting graph on intakes for 383s. I'll include that so to have added something to the general knowledge base. I have no idea where it came from.

R.

I have this one too.
Was anyone able to find some flow #'s?

Trying to decide between the street dominator and an LD4B DP on a 360 blown engine.

I figured the SP may be easier to jet/tune.

Popular T-shirt from the '70s:

"Injected is nice, but I'd rather be blown"

The LD4B is a 318 intake, its bigger brother was the LD340. Thye LD340 and Perf RPM are nearly equal.

Turbo or supercharger? How much boost?

As the LD4b is sized for 318 ports and is in pretty high demand, I'd suggest selling it as well as the Street Dom and using the money to buy something better suited. I'm thinking Perf RPM or Torker, something along those lines. If I had any extra money right now you'd be looking at a PM from me with an offer on the LD4B.

R.