Whats a better intake?

[rallye72]

Edelbrock torquer 340 or a holley street dominator? Both are small block single plane intakes.

[B.Tallent]

the holley street dom. has very small runners and is only rated for 4500 r.p.m.. you can't take out enough port material to gasket or port match the heads on a 340. I know I tried. I think the reason it works well for the street is the velocity of the charge is increased from idle through top end so it does'nt have low end bog. have no experience with the torker

[jimbo7074]

I've tried the torker 360 before and lets just say my Weiand Stealth is a far better intake.

[B1owner]

Originally Posted by jimbo7074

I've tried the torker 360 before and lets just say my Weiand Stealth is a far better intake.

we took a Weiand Stealth off my brother's Challenger and put a 360 Torker on it and we noticed no difference in e.t. They both acted amazingly the same. It probably depends on your combo.

[rallye72]

I have been tossing aroung the idea of having a set of ported 360 heads milled .050 and bolting them on a 318. I dont want to lose any compression on the teen. And using 273 adjustable rockers on a MP solid cam. I have both intakes and don't know which one to have milled along with my heads.

[SB Racer]

I have the streetdom on shelf going on top of my 273 streetrod, and looking to its small dia runners I'd go with that Edel 340 with 360 heads and keep the streetdom with those originals

[TK]

Originally Posted by B.Tallent

the holley street dom. has very small runners and is only rated for 4500 r.p.m.. you can't take out enough port material to gasket or port match the heads on a 340. I know I tried. I think the reason it works well for the street is the velocity of the charge is increased from idle through top end so it does'nt have low end bog. have no experience with the torker

They made a street Dominator for big port heads too. It was called a strip dominator.

[jimbo7074]

I know the Ld 340 was a great intake might be getting rare now though.

[pishta]

Find a 273 4bbl intake, ultra low, single plane. I have a Street Dominator on my B and it revs far past 4500, one of the best street intakes period. The edelbrock streetmaster is the lousy one. LD-340 is very good for the 340/360 head. LD4B is the smaller version.

[73scamp318]

i know someone who has a ld340 intake for sale if someone is intrested.
I would sell those intakes and a buy a dualplane airgap, has great bottom end while only losing very small hp in the very top.

Steve

[rumblefish360]

Those LD-340's tend to pop up on E-bay once in a while. In any case, if you can't seem to get one, then the RPM or Weiand action + or Stealth will be better.

[Locomotion]

Has anyone compared a Weiand Stealth and Action Plus side-by-side?
They look to be the same casting but machined with a different carb pad!

[rumblefish360]

I noticed the same thing Loco. Seems like there the same with the pads and RPM listed being different. Oh, lets not over look the price.....

[dodger1]

Just looked at the Weiand site. 8007 and 8022 seem to be identical except for carb flanges. One's a spreadbore, the others a squarebore. Height and port dimensions are listed as being the same.

[Locomotion]

I also seem to recall that there was a Stealth or something just like it under a different part # many years ago. The current 8022 Stealth also happens to have the plenum walls cast for the wider, spreadbore secondaries, despite the square bore carb pad! I wonder if they just went to the one casting to save money because it seems to be the same otherwise.

Either way, I always thought that the Weiand may be a pretty good intake, but haven't been able to make any accurate comparisons..
Internal volumes between the Stealth, LD 340 and Air Gap would be interesting to know.

[rumblefish360]

Loco. Tell me how you want a RPM air gap measured and I also have a LD-340 that has been moded a bit as per the MoPar book. I'll dig up a picture I posted here some time ago.
picture of Modified LD-340 and T-Q;
http://www.moparchat.com/forums/atta...achmentid=2617
A pencil drawing of a few carb pad area specs of the LD-340;
http://www.moparchat.com/forums/atta...achmentid=2653

[Locomotion]

I was thinking along the lines of total cc volume of the plenum and all runners, like one measures a combustion chamber or head port. (Might have to estimate the volume that the cut-out divider originally displaced.

If you have the time and equipment, that would be great! I've been curious about that for a long time. Just need a Stealth to measure too.

[rumblefish360]

I'll need to score a burret to findout. Then something to block off the intake runners. (Use a gasket there or not?) The plenum divider wasn't much.
Now, how far should I fill the intake to.
Level with the pad?
Level under the pad?
Remember that the LD-340 has a carb pad that was altered to fit a T-Q and the work was not perfectly done , when it was done. It will be off by a few cc's. But close.

Tell me how you want it and I'll do it.

[rumblefish360]

btt.

hey Loco

[Locomotion]

Sorry, my "notification" alert doesn't seem to be working.
"Ballpark" figures should be close and informative enough. I'll see if I can dig up any large syringes here and check some other small block intakes I do have.

I think that a plastic or metal plate across the port faces, sealed with silicone, should work well. Of course, any open vacuum ports in the runners will need to be plugged.

[rumblefish360]

I e-mail you on this, we'll take it from there. Thanks.

[djswwg]

the street dom is by far the better of the 2 you have. i too have pulled way more than 4500 rpm from them with only a simple port match. if you buy a new intake, go with the Weiand, better intake and better price.................djs

[rumblefish360]

I have not had a street master intake myself. But the milling of the heads and solid cam sound good.
I have to agree with it being a combo dependent problem on which one is better. The smaller runners could really help with velocity and a small cam combo. The Torker makes very good HP top side. Lacks in torque. But what else do you expect for a single plane?

Loco, working on the intake cc thing, getting stopped by those seeking to help me. I'm going to spring for a 100 cc burret and skip them though there trying to help, there hindering this experiment.

[waynebo]

Performer rpm air gap is the way to go,better than the ld340,do you any reason to chose between the 2 intakes,i.e free or cheap used?

[B.Tallent]

as I had posted earlier there was not enough room left to port match on a 340 w/ x-heads. the specs. for the chry. L.A. street dominator said 4500 r.p.m..and my 340 fell on its face at that r. of coarse there was also some other issues with the motor at the time. some chevy builder had stuck a stock 318 cam in it for one thing. the motor is apart waiting the crank to be balanced and now has a perf. r.p.m. waiting in the wings. I think the street dom will go on a 318 or a 360 trk.

[michaelmopar]

i have a ld 340 that came off a 360 and at the time it was all i had so i put it on my mild 318 and i think i am killing some power i have a set of 302 casting heads and at best they flow 160cfm my 86 3/4 ton 360 has a set of 308 castings they flow un ported 209cfm so i think i will have them shaved and re install the ld 340 and i should see a dramatic increase in torque. suggestions.

[rumblefish360]

michaelmopar:

The LD-340 on the 318 is a tad of a mis-match. It is a bigger port intake. You probably lost some torque with it. Use with the 308 heads will be better, but the problem is the large port volume of the 308 head.
To make the best of that combo, do some math and find the amount of head shaving to do on the heads for a 9.0-1 ratio. This will help make up for the loss of torque that will happen with the larger port head. I would recomend more compresion, but that may be excessive head milling and more of a problem getting the intake to seal.
Though the head flows more, the port velocity will be slower and the air and fuel will not be in a fine mist for better combustion for better power until the engine starts spinning abit. A loss of torque will happen on the low side of the RPM scale.
A better way about this would be a 318 sized port intake like a Edel. Performer and a T-Q. Futher improvments are had with the (318 head in mind) use of 360 valves in the head and a pocket porting job. You can then couple it with a small cam for a vast improvment on the 318.
Save the 308's and the LD-340 for a decent 360 build. They'll work well together on a larger cube engine.

[Tarrbabe]

What do you want for the LD340?

What kind of mods did you do?

What kind of RPM's does it work at in present form?

[rumblefish360]

What do you want for the LD340?

Not for sale. Sorry, never said it was. It is awaiting a 360 at present.

What kind of mods did you do?

Port match, plenum wall milling, light contor work inside plenum, carb pad open to accept a T-Q without problem.

What kind of RPM's does it work at in present form?

With the plenum wall milled and contor work done, the idea is to raise the operating range a few hundered RPM. According to the MoPar manual, engines I think it was, It should be used with cam lifts over .550. Of course todays grinds are far way different than yesteryears grinds, so you need to read between the lines of how things were done and how the lifts worked with duration years ago.
Considering this is a race mod for dual planes in a must use a dual plane type class, @.050 duratons start in the 250 range. I have used it as described with small split cams as low as 218 @ .050 with good results. I tested it against a TorkerII. My first aftermarket intake.
The main idea is to make the most of the intake while staying within the rules and/or for use with cam that have a broader range like a Hyd. Roller.
Once I get the shortblock together, it along with a few other intakes are going to see some testing and compareing. No dyno time will be seen. It's just more than my pocket can handle testing out 5 different intakes on a dyno. The track will have to do.
Becaueful if you work on it. Aluminum is easy to repair, but easy to wreck as well.

Heres one to bid on; http://cgi.ebay.com/ebaymotors/EDELB...QQcmdZViewItem
OR
http://cgi.ebay.com/ebaymotors/MOPAR...QQcmdZViewItem
And what I wish could pinch a few pennys for, a electric choke T-Q; http://cgi.ebay.com/ebaymotors/Carte...QQcmdZViewItem

[rumblefish360]

Also worth a note, theres a few Action+ and a Stealth or 2 for Weiand. Capable intakes no doubt. There also a Holley Street Dom and a Strip Dom up for bid. The Strip Dom. has a T-Q pattern all ready there. It will also work with MoPars T-Q spacers for more plenum. That intake is for a serious engine.
Seen a few Edelbrocks out of production like the LD4B, A couple of dual quad rams and long out of production Holley, Offenhauser and Weiand intakes.