$75 HOLLEY Street Dominator: MAKE it PERFORM!!!/ Project: Sleeper the 408CI Smallblock CHEVY

[@josephdavis6198]

Thanks Andy it's an Honor to have you and DV working on my Intake. Can't wait to bolt that on Project Sleeper.

[@UnityMotorSportsGarage]

I'm glad we can do it! I can't wait to see how it turns out.. Andy

[@f.chrisliuzzo7889]

@@UnityMotorSportsGarage what kind of car is this 408 going in? And what afr heads did ya use? I’m just curious because I’m building a sbc at the moment for my g body and I’m picking up tips on making it work good?

[@UnityMotorSportsGarage]

Here you go Chris! Thanks for watching Andy kzbin.info/aero/PLTTy0v-QJLKxyknfHC0O2-RbQHmeIzc9z&si=UDGR7fgx6hUs85M7

[@stevewelborn8744]

This is turning out to be my favorite channel. My occupation for the last 45 years has been a cylinder head man and I really enjoy your channel.

[@UnityMotorSportsGarage]

Thank you so much Steve! I really appreciate that Andy

[@paintnamer6403]

I have used Dykem before but really all I need is a black Sharpie for port matching.

[@psychoholicslag4801]

The Holley Street Dominator for 400 Fords and 351 modifieds flows 270 CFM average stock. They can be ported to 340+ CFM.

[@JeremyFrazelle-or1mt]

That was an eye opener. My theory confirmed on anti reversion .👏🏻👏🏻👏🏻Thank you Andy and DV.

[@servediocylinderheads]

Anti-reversion makes a difference!

[@UnityMotorSportsGarage]

Yes it does! Andy

[@flinch622]

I think it makes sense (and an easier manifold install), and moreso in dealing with wet flow tendencies: anything dropping out of suspension wants to collect on the floor and just slobber its way in. Some cases that little eyebrow shaped clean spot in a chamber between intake and exhaust is a tell [and why a floor fin is sometimes a good idea because it splits the fuel creep in two parts, giving it a better chance to shear back into suspension at low lift]. I don't have a flow bench, but something between 0.010"-0.015" was my instinct: the small low pressure area pops fuel back into suspension, and should net a gain over minor added turbulence? Only a dyno tells the story. I suspect that number becomes somewhat negotiable depending on port velocity/geometry. Vizard may have commented on this before and if he did... I think I missed it - it just escapes me at the moment..

[@russellbroadwell]

I had one of those on a gt40p engine with a E303 Cam it wasn't any better than a low rise proformer. A dual plane Weiand stealth produced the most power. They were all untouched, i was glad to see the Dominator go when i found someone to buy it.

[@frizzellracing]

I liked hearing you mention leaving a texture on the intake. I’ve seen so many times people just go full blast after “polishing” it. Trying to get it as smooth as they can and they don’t understand they are killing it.

[@UnityMotorSportsGarage]

Yeah polishing shouldn't even be a word.. 😆 Thanks for watching Andy

[@patrickmoore1017]

Oh man, fantastic video. That Street Dominator was also my first manifold on a 283. It really woke that thing up over a stock cast iron four barrel manifold!

[@BigBlock402]

Ive had a couple of those intakes on a sbc and they performed as well as a dual plane on the street for me.

[@UnityMotorSportsGarage]

They are decent intakes, are they the best probably not but for $75 I don't think we went wrong in our choice... NOW ask me again on Dyno day I might feel different 😆 Hope all is well your way brother TunnelRam Mafia TTF Andy

[@rayowens4355]

Awesome port match tips! I will be using the dychem technique on my dodge kegger manifold! Good stuff!

[@93xcr440]

Funny you say that was your first aftermarket manifold it was my first to it was the 273/318 version it was on my 73 dart with a 318 and that manifold out performed a Edelbrock performer hand's down the Edelbrock I bought brand new from Ramchargers performance center in Madison heights Michigan the Holley came on the car so I actually did a hard street driving comparison

[@rickyfulks889]

Thanks as always for sharing info with us gearheads Andy n DV

[@gordonborsboom7460]

I just picked up an SBOlds version of this manifold (also EGR). Plenum looks similar

[@UnityMotorSportsGarage]

There are probably some small differences but you are right all of the intakes of that line-up are similar Andy

[@rotaxtwin]

This is exciting stuff! This was my first hot rod purchase also, Andy! Back before the internet when you had to buy the Bargain Finder every Thursday and look through the Auto Parts section. I picked one up used and put it on my '75 Monza (1-yr only 262 cu in) along with a Carter 500 AFB. In your case you've got about 4 - 5 times as much engine going on under that intake, but I'm excited to hear that the intake is a reasonable performer, I always assumed it was a bit of a turkey - like the Tarantulas and Scorpions of the day. I am looking forward to seeing how your modifications look once you're done. I'm sure it will be effective.

[@gordocarbo]

Was it called the Recylcer? Every car guy would be picking one up early Thurs! Those other intakes you mentioned arent as bad as some make them out to be.

[@GaryH-pw9cm]

I had an aluminum manifold on a 65 Mustang 289 back in 1976 that had a special runner between cylinder 4 and 8. It was supposed to equalize the air flow in the intake. I don't remember the name of the manifold but ran it for many years with good power and fuel mileage. I have never seen another one like it since.

[@edsmachine93]

Good information Andy and David. I like modifications you're planning on doing to the manifold. 👍👍 Thanks for sharing.

[@UnityMotorSportsGarage]

Thanks Ed we will see how it turns out once it goes on the pump! I think it should do well Andy

[@josephdavis6198]

Thanks!

[@josephdavis6198]

Keep up the great videos Guys !

[@UnityMotorSportsGarage]

Thank you Brother!

[@TaekwondoFitForLife]

Two of the very best in airflow tech my opinion and many others no doubt, love it gentleman! Hey, I’m using something called a “Super Sucker” sounds funny, but it’s a spacer which is air bench flowed. Gives dynamic release of the air as it flows past the carburetor directing it in a way which is dynamic to enhance desired. It’s basically a cone shape on the exit side of the carburetor eliminating the big gap on the bottom side of carburetor. It’s the underside of the carburetor base as viewed by the engine, sure you can see this void visually? It’s in the interest of velocities which as you know and are developing very well! You men Rock the mechanical world! Love watching you guys😊

[@UnityMotorSportsGarage]

Thanks for the kind words! Andy

[@TaekwondoFitForLife]

@@UnityMotorSportsGarage Absolutely Mr. Wood, I follow your channel and you partner with the best and man you guys are so cool doing your thing I appreciate the knowledge flow Sir, wow, David Visard is so technologically on top of things and with you UTG, and several others I’m getting so into my ride. 1963 Chevy C10 383 Stroker. I want a “good functioning tunnel ram too.” I may come out to Tennessee, you guys are so cool. You race, you have the knowledge for the things which are so cool. “I love old school hydro mechanical!” “No chips please, ha ha.”

[@dondotterer24]

Thanks Andy. I bought the same intake because of DV s book. How to build horsepower/ carburetors & intake manifolds. Page 124. I'm going to use a modified 800 Q- Jet . Wondering about extending the runners like DV did in the book?

[@UnityMotorSportsGarage]

This build is going to be interesting as you know I'm not a Q Jet guy so this will be a definite learning experience for me! Andy

[@dondotterer24]

@@UnityMotorSportsGarage I've done probably 68- 80 Q-Jets over the last 40 years and still learning. Hopefully his is close enough that all you'll have to do is adjust the air door and maybe change the secondary rods.

[@gordocarbo]

@@dondotterer24 Wish I had Q je know how. Love how they run with mild cams in them on the st.

[@kennethcohagen3539]

The Holly Street Dominator for the raised block version of the big block Mopar was the best intake available at the time. On a 440, with 9.5-1 compression, heads ported with Mopar Performance porting templates and 2.14 and 1.88 valves, Mopar Performance .509/292 hydraulic flat tapped cam and a few other things made 521 HP. In a light Duster that meant 10.90 treeitory.

[@derrelcarter9401]

If you should think about it, Please ask DV how this manifold compares with the old Weiand 7525 egr version that Roger Helgesen & DV extended the runners into the plenum and ported?

[@UnityMotorSportsGarage]

Very similar, as DV and I discussed yesterday about maybe doing the same exact thing to this manifold.. Thanks for watching Andy

[@ThePaulv12]

The anti reversion port mismatch must be why Mopar 360/340 4bbl iron intakes often work so well on 318s.

[@ElvinLeadfoot]

Awesome video Andy… You and King David working together. It’s too cool man:) If I had more time I would ride up there to hang out.

[@finnroen2334]

This was interessting because I have, and I have read most of DV books. According to those, the best single plane SBC manifold to modify is the Weiand Street Ram 7525. We have uses the Holley Street Dominator EGR SBC manifold with good results, but in one of DVs books it says that the Street Dominator could / should be avoided. :) He said something like: After a frustrating day on the dyno, a change to a Victor jr. manifold gained...I think it was 30 hp.

[@UnityMotorSportsGarage]

You have to remember there are at least 3 versions of the Street Dominator single plane versions for the SBC the one he despises is the first version which looks like the Original Torquer intake. Andy

[@finnroen2334]

@@UnityMotorSportsGarage I see. Thank you. I did not know that.

[@gordocarbo]

Noticed some of the Holleys have a sharp edge rather than rounded at the runner entry. Whats yours or DV opinion on that...to keep fuel in suspension? Leave or work it over?

[@UnityMotorSportsGarage]

Yes on Carbs with poor atomization it will help shear the fuel. Andy

[@DragBoss351Cleveland]

Can't wait to see how the Chevy will do. Great video thanks

[@UnityMotorSportsGarage]

Thanks brother, you know what type of job I have in front of me! lol Andy

[@tedjones-ho2zk]

I was wondering if it would be any benefit to useing a Tapered Combo spacer plate. There are also anti reversion spacer plates also, would there be any benefit to using that in the combo? Must add always enjoy videos from the two of you. Both of you make a great team.

[@UnityMotorSportsGarage]

Thanks for the Kind words Ted.. I'm going to try my best to answer this in a post.. It depends on the application. Since this combo has such a mild cam. Reversion in my opinion would be less of a problem. BUT the only way to know forsure is to test! Andy

[@dadalebreton184]

I have a holley street dominator as a Snowflake stamping for my Pontiac engine Im rebuilting next. Some used to say it was a better performance than others, but some say it's only because it was made in winters founderies. Why would they stamp it with a Snowflake anyway ? Any tought? And I have this 72' 429ci-4v from a marquis. I know the heads are the worst for pre-ignition because of the changing era to meet the gvt fuel standard. Is there anything to do with it or it's better to leave it bonne stock for fuel factor. 58' Fairlane 500 body for it. They already had put a 72' LTD 400 cleveland (4x4 B-S). For comon driving and around town, wich would be better to rebuilt ? I know, I prefer the 429ci-4v myself.

[@rosskrause3926]

Winters was the "premium" foundry back then..if the intakes etc had that stamp you know you are getting a high quality part..thats how i SEE IT ANYWAY.

[@gordocarbo]

Look on the bottom there should be a date stamp in the casting. Good experience with those

[@babaloo42]

Would adding a hump on the plenum floor help or be counterproductive?

[@MH-53E]

How does cam choice correct uneven fuel distribution created by the intake manifold? Of course it will effect intake and exaust duration but how does it correct for fuel flow to certain cylinders? Are u changing the grind for certain cylinders and not others? I'm confrused...

[@UnityMotorSportsGarage]

You are changing the firing order of the engine with a 4/7 swap camshaft. Which changes the dynamics of what is happening in the Plenum. 18436572 vs 18736542 BUT you still have the same dilemma but now it's on cylinders 4 and 2 instead of 5 and 7 Hope this helps Andy

[@MH-53E]

@@UnityMotorSportsGarage Ok. That would definitely change up the flow pathways. Change things and monitor the results. Thanks brother. Funny, only us old farts up at 6 am, thinking about car stuff...I really enjoy watching you guys pick at each other's brains. Lot of trial and error knowledge in there, all mixed up with a bit of science.

[@stanmack1]

my sb mopar 318 version has a divided plenum and a crossover joining the two rear runners. should i mill out the divider and block the crossover?

[@UnityMotorSportsGarage]

mine was the earlier version that didnt have that. If it were me I would mill the divider out and block the crossover Thanks for watching Andy

[@dondotterer24]

I messed up I have the Weiand Team G that in in the book he worked on it with Roger Hegelson.

[@UnityMotorSportsGarage]

How did you mess up? Andy

[@dondotterer24]

@@UnityMotorSportsGarage Mine is not the Holley Street denominator. Is the simular Wieand Team G.

[@UnityMotorSportsGarage]

@@dondotterer24 the Team G is really good too! In my opinion it's slightly better than the manifold I'm working on.. Andy

[@dondotterer24]

@@UnityMotorSportsGarage Ask DV we should extend the runners like he and Roger did. THANKS

[@gordocarbo]

Those are killer intake manifolds. Not a screw up

[@johnnikollaj496]

Very interesting stuff.

[@servediocylinderheads]

Excellent video! See you soon!

[@UnityMotorSportsGarage]

Thanks Charlie! Y'all be safe heading up Andy

[@rod426]

Great video!

[@UnityMotorSportsGarage]

I'm glad you enjoyed it! Thanks for watching Andy

[@harleysgarage327]

Great video, I have this same version of that Street Dominator intake, so Thanks You!

[@TonysHotRodGarage]

Good stuff as usual guys!

[@UnityMotorSportsGarage]

Thanks Brother!

[@pontiac411]

Looks like an intake used to develop one I have been waiting on for months.

[@jims2286]

Do those turtles work that they sell for intake manifolds?

[@UnityMotorSportsGarage]

That is a Loaded question as I have seen time where they do work and others where it doesn't. Andy

[@Anarchy-Is-Liberty]

Testing on your combo is the key!

[@kennysmoparts]

Cool Dodge Duster

[@ralphparker9263]

I have a newer one probably from the 90s non egr is it a good one to use??

[@gordocarbo]

What is the part number? If its a 300-36 id be interested if you arent using it

[@longhairscorpio3976]

reminds me of the torker 318

[@mikasantos3774]

I have the same manifold that a buddy gave me and I will run that bad boy not to much h info on the net

[@Anarchy-Is-Liberty]

Come on, you've gotta make a crap load more horsepower than that!! Pat over at Cutters Performance just slapped together a bottom feeder 355 (calls it his Dingleberry SBC 355), and it made 480hp, doesn't even have a windage tray in it!!

[@UnityMotorSportsGarage]

😎 It's a Really small cam... Lol Andy

[@josephdavis6198]

I asked Andy to build me something I could live with on the street and look stock. That was a goal when we started and he has made it happen. Looking factory stock and going Fast @@UnityMotorSportsGarage

[@Anarchy-Is-Liberty]

@@UnityMotorSportsGarage Oh, I see... so like a nice smooth idling engine with plenty of horsepower. Got it! 👍

[@UnityMotorSportsGarage]

@@Anarchy-Is-Liberty yeah the idle will be pretty smooth... Andy

[@gordocarbo]

@@UnityMotorSportsGarage Get a kick out of people critiquing, then say "cause xx guy on the internet said"...yep thats the extent of their know how.

[@shane-222]

🎉❤ DV LS3 🥳💥

[@hotrodray6802]

🔔😎🇺🇲 YeeeeeHaaaaaw!!!!

[@patrickwendling6759]

Thank you for your knowledge and videos USA 🇺🇸 TRUMP 2024