HOW WELL DOES THE HOLLEY 2-PIECE, SINGLE PLANE LS INTAKE WORK? SHOULD I PICK A SINGLE OR DUAL PLANE?

[@notmeatall7116]

So I'm thinking of a project car. 2,200 to 2,300 lbs. road sports car. I'm looking for 400 to 500 horse power at around 7,000 RPM. Keep the torque somewhat low. Say under 400. I would drive this on the street with occasional road race track days. What I have in mind is a 5.3 all aluminum LS. I found an LM7 with 862 heads that looks interesting. Questions: Can the stock 862 heads support the above power? Without porting and intake valve size increase? I am wanting to install some kind of down draft manifold (such as a Holley EFI LS Intake Manifold with an elbow) in order to fit the engine in the car without butchering the bodywork. Any suggestions for cam and what manifold would be very welcome.

[@richardholdener1727]

400 hp is easy with a 5.3l and a cam, 500 hp takes a lot of work

[@notmeatall7116]

@@richardholdener1727 So I would be looking at porting and passably 2 inch intake valves on the 862 heads, with intake manifold upgrades to get to say 450 HP at around 7,000 rpm. Maybe a throttle body upgrade as well? There seems to be so much You Tube info on much higher HP. But little on milder more street oriented builds. I'm thinking crazy torque isn't needed with a car that weighs 2,200 lbs. Plus torque is what breaks transmissions. I am building for a Porsche Boxster S Trans

[@baylor10010]

Hey Richard. I have a 4.8 i want to put efi on it with a holley single or dual.plane intake. I want it to be like a daily driver / qeekend cruiser. Looking for a nice cam as well. Looking to put in a 70 era 914 with a 5spd. What do you recommend for application. I want good gas mileage, and power. Some were in the range of 3 to 400.

[@richardholdener1727]

I have a cam for you-send me an email at [e-mail]

[@danieldouglas8034]

Hi have a problem if eny 1 can help. I have a lq4 6.0 with 862 heads upgraded rockers springs port work . Full length headers. And has a carburetor with 750 holly. And a 2 peace holly intake manifold the new one. Need to know what cam to run. Eny help please.

[@richardholdener1727]

btr hot rod

[@danieldouglas8034]

Thanks love the show. I have a manual transmission to if that makes a difference. Thanks

[@bandido420]

Test that with the junk yard dog cam.

[@BAHRacingTeam]

I’m building a 6.0 now that is getting bored with dish forged pistons for nitrous. Also using the junk yard dog cam. Can’t wait to see the numbers.

[@Ryanezek36]

That holley woukd work good on my late model

[@russelljackson7034]

Right on

[@brianholcomb6499]

Richard I love your videos, but almost nobody is putting a N/A 4.8 into anything to just drive around! I agree 100% that if you were to just drive it around N/A the dual plane would be the right choice! But most people watching your channel are usually trying to figure out how to put a street race vehicle together, like they see all over KZbin! Almost all of those vehicles are leaving off a trans brake & 4500 & running them to 7000+++! They are always traction limited! So they don’t care 🤷🏼 at all about what it makes on the bottom! I’ve even seen those awesome gigantic MAST & CID intakes on 4.8s & 5.3s! Or the cheapie big fabricated intakes! Guess what! Those are the guys who normally win on the street! It’s very rarely the guy with the sleeved L/S w a 4in stroke & 427 cubes & a fast manifold! I don’t want to argue, I’ve known for along time the better the N/A engine runs, the better they will be on boost! But unless the car is just going to be putted around N/A! I don’t believe anyone really cares about dual plain intakes 🙄🙄🙄🙄! I honestly think it’s been beaten like a dead ☠️ horse 🐎 over the last 20+ years! If they don’t know by now 🙄🙄🙄🙄! They will never ever get it 😂😂😂😂! I’m sure there are tons of street races out in your state! Maybe try to go & see what these guys do, especially with the smaller L/Ses! Thanks again for doing all the testing we all wish we had the time to do 👍🏻👍🏻👍🏻👍🏻!

[@richardholdener1727]

Translation-you run a race motor and care about race motors-I get that. Others care about low-speed power-in fact it is the question I get most often (way more often than how to build a high-rpm race motor)

[@Kibblesnbits4]

I just came here to comment on Troy’s beard in the thumbnail.

[@richardholdener1727]

yes

[@MrScottt28]

Holley single plane did surprisingly well on this small 5.3 engine. It would be interesting to see how it performed on a 6.2 liter.

[@bryansroom]

How do you decide whether to use a tunnel ram or a single/ dual plane intake?

[@richardholdener1727]

depends on hood clearance, daily driver or not, but for just power, the tunnel ram should make more peak power

[@williams4758]

This gives me hope for that split intake on my boosted 6.0L 236/242 .612/.632

[@Bobberdoo75]

I've got a 408 w/ 10.8:1 compression 317 worked heads and the Holley split efi intake and it made 590hp/545tq. I have it in a 64' Ford F-100

[@MrScottt28]

Whoa! Cool!

[@rodneygodin7773]

Made thos # on my 347 with Afr 220

[@Bobberdoo75]

That's Great!

[@shortbed70]

I’ve got a similar setup 408 11:1 823 ported heads and a ls3 stage 2 cam made 606hp/550ish tq @ 6600/5400rpm I’m curious as to what the dual plane would do for more street and tighter converter

[@MrScottt28]

@@shortbed70I'm thinking you'd gain some.torque without giving up much horsepower

[@bradenmolloy7443]

I like how you just start naming the cam specs for us because we’ve learned what to do with those numbers and with the intake setup we can ball park a hp number for most engines just by getting a build sheet lol 😂

[@bradenmolloy7443]

Instead of guaranteed hp number its more like we can estimate the manners of the engine with cam and intake and compression 👀👀🕺🕺🕺 pretty crazy stuff I guess that’s how you tune and build and engine 😅😂

[@richardholdener1727]

we r all learning

[@MrScottt28]

IKR...

[@bfromthed]

Where you going to school at Braden?

[@bradenmolloy7443]

@@bfromthed we’ll I’m done with school now but I just work full time and hot rod for a hobby 😅 wouldn’t mind working and going to school for engines and chassis building

[@trevman187]

Been scouring your videos to see the split holley single plane on a 6 liter with like a 239/250 duration cam lol

[@richardholdener1727]

rather specific-but it would work well

[@trevman187]

@@richardholdener1727 excellent... that's what I wanted to hear lol

[@ryanhines719]

Love seeing the products I sell at Holley being tested!

[@genemounce8302]

I've been wondering this SAME thing !

[@slows102]

I'm building a forged 408 with rec port heads. Thinking of this intake. Should make good power?

[@Sebastianbartledoo]

Talk some sense into that guy and junk that truck cam. That would be an easy 500hp with a performance cam!

[@Gallows_Motorcycle]

Hey Richard I am building a NA 6.0 LQ9 at the moment for my 65 C10. Its basically gonna be a cruiser but I wanted the chop so I bougth a Truck Norris cam for that. I will Holley-Terminator-TBI it but what intake do I need? Obviously it won't be at WOT all the time but I want the engine to have a little spice. What do you think?

[@richardholdener1727]

dual plane makes more down low-single plane makes more up top-there will always be a trade off

[@Gallows_Motorcycle]

@@richardholdener1727 thx for your response....

[@oldschool337]

Which is the lowest profile carb intake for Ls3/L92

[@bnastystuntz]

Let's see some comparison on a motor that actually needs an intake like this. This needs to be tested o. A 400 ci plus motor..

[@rachonlewis2819]

How well would it work with boost and a bigger cam

[@jmullis78ify]

That big single plane would probably be awesome with a big cam big gears and high stall. Especially at the strip

[@rachonlewis2819]

Im going twin 72s custom cam .600+ .250+ @50 in a rod and piston 5.3 looking for a high ram or pro flo alternative

[@richardholdener1727]

boost would change nothing but cam and displacement and rpm would be a better match with the single plane

[@shawng8396]

Well im going to run one of these in my 6.0. .617/.598 224/228 114 lsa cam with an 85mm turbo with e85. So unless Richard beats me to the dyno... he probably will as I have been waiting since before Christmas for my intake to show...

[@jmullis78ify]

@@richardholdener1727 from watching you're videos it seems pretty simple that the torque loss down low from short runner intakes is more dramatic with smaller displacement engines

[@PontiacLS]

I'd like to take a dual plane and make it a fuel injection intake. I was going tig bungs on. What's your opinion thank you for the video.

[@jmullis78ify]

I bet that would make tons of torque

[@PontiacLS]

@@jmullis78ify That's what I'm thinking I don't know why they don't make that intake

[@richardholdener1727]

it works

[@PontiacLS]

@@richardholdener1727 OK I'm going to do it thank you very much

[@texasstreettunes1310]

What exactly makes the split manifold perform so much better then the vic jr manifold i thought the split design was just to make access for porting, also would there ever be any issue with boost leaks on the split design even with the gasket. Im conflicting on what to use on a boosted 402 peak power around 7000-7500 rpm.

[@hoost3056]

Intake manifolds shape the torque curve. Dual planes have longer runners, and longer runners boost low and midrange power because they resonate ( think of organs making notes ) at lower and middle rpms. This is why matching everything takes work. Cam timing, intake, heads and exhaust is all a system that has to be optimized to achieve your desired results.

[@texasstreettunes1310]

Judging by the dyno and the advertised rpm it seems like it will suit my application the only thing im worried about is boost leaks with it being split.

[@texasstreettunes1310]

@@hoost3056 i was also curious as to why it made more power then the other single plane intake not just on the top end but was closer on the bottom.

[@richardholdener1727]

runner length

[@shawng8396]

I've had my intake on order since before Christmas. Maybe by next year I might finally have it. Lol

[@utahcountypicazospage5412]

Seems like 4.8 doesn’t have enough displacement for single plane intake manifolds at all. Lesson here is don’t use a single plane unless you have high compression,heads and huge camshaft to use it. 5.7 would be the lowest cubic inches for a single plane intake in my opinion

[@trickmytrailer]

What happened to the GT45 turbo challenge??

[@richardholdener1727]

coming when i run the 3800 next

[@jmullis78ify]

I basically did the same test with a 6.0 on the road. I started with a lq4 with ls6 heads a BTR nsr cam long tubes and a Victor Jr. a quick fuel 750 carb in a gbody. The victor jr cracked and I switched to a Holley dual plane. The dual plane is better all the way around!!

[@shitbox82]

I have a Vic Jr on a .030 over 6.0, it cracked recently also, I’ve been thinking about trying a dual plane on it…

[@Torquemonster440]

You didn't watch till the end ?

[@glolife207]

Can you run A/c with a carbed ls?

[@boostedlsnotch2192]

I'm building a 3.810, 10.5:1 5.3 for boost. I love the look of the holley split intake with a Wilson elbow, but I know I can make more HP with a tsp sr1, or a fasst intake. I'd love to see this mother ran under boost with the holley split intake and the fasst, or tsp sr1, or even with a holley high ram back to back!

[@richardholdener1727]

please see the cath port intake test video-the fast would likely be better than this single plane all the way up to 6500 rpm or so

[@MrLs1racer]

Id say if that motor had more cam in it, it would have been over 500hp

[@MrLs1racer]

Torque would have been lower too.

[@jimreal3840]

I am waiting for a summit ls long block to be delivered..I'm putting in a 68 chevy pickup with a 2004r gn trans...it's the 5.3 ls 450 hp 415 tq...I'm going w the carb setup.i live in a small town w some long roads and won't be on highway much... What do u think would be best intake would be for that type driving ? Also stall converter ? I have a nice 3600 from my 87 gn...I just want to get it right the first time....thanks.,..great videos ..

[@davidcarroll9906]

What rear gear ? How tall is rear tire?

[@richardholdener1727]

that is a mild cam so dual plane

[@MrScottt28]

If you're using the truck as a truck, do not use a single plane. You'll kill torque down low.

[@jimreal3840]

@@davidcarroll9906 don't have the funds yet....but hopefully a gn rear w the 372s... probably 31s on rear...thx

[@jimreal3840]

@@richardholdener1727 thank you....and thanks for being so informative on everything...you r the man !

[@justinirvin7068]

What steam vent kit was on that 5.3?

[@richardholdener1727]

not sure-he made it

[@michaelblacktree]

I'd be tempted to put a sheet metal divider in that 2-piece intake, see what happens. A thin piece of sheet metal should get the desired effect.

[@andyharman3022]

I suppose it would be easy to sandwich a .020" piece of sheet metal between the manifold halves, but I'd bet that it would lose power everywhere.

[@michaelblacktree]

I would rather see the results, even if they were negative, instead of making assumptions.

[@richardholdener1727]

I want to see the results too

[@arthurking6549]

Complete disaster Been there done that

[@michaelblacktree]

​@Arthur King - You have one of these Holley 2-piece intakes, and tried the mod I described? How much HP did it lose, and at what RPM?

[@bradenmolloy7443]

I knew it was a duel plane from the flat torque curve

[@unclesquirrel6951]

Personally I blame squirrels

[@35057]

Have you ever done an LS coil test or compilation? I know someone did one ages ago but that was heat sink coils vs stock ls1 coils. Not looking for any power gain, just reliability and possible rpm consistency.

[@richardholdener1727]

I don't think you see anything until misfire happens

[@peterbermingham1313]

I’d like to see the dual plane with a spacer difference as a comparison, and also a comparison between the Holley manifold and a super vic, possibly on a 5.7/6L

[@Lagrange1186]

I know what we learned!.... we need more testing! 🤔

[@robbyjames2777]

Speaking of ls, I bought 26918 springs from comp, they’re ls springs raised to hemi install height but heard a lot of bad issues, of course after I bought them, I am using them on my 5.7 Hemi, do you recommend any better springs?

[@richardholdener1727]

comp has dedicated hemi spring kits

[@robbyjames2777]

@@richardholdener1727 yes lol that’s what I have, my question is, what other brands make a more quality spring then comp? Manley or Psi?

[@hondatech5000]

Did the extra compression on the 53 help the crossover point or is that just the holley has more runner length than the victor Junior? I know I thought that was pretty good crossover. I didn’t seem to help on the 48 even the 440 hp one.

[@richardholdener1727]

displacement on the 5.3L

[@Hatcher426]

I would really like to see this setup ran back with the fast 102 and compare with the single plane.

[@richardholdener1727]

see the many intakes tests (cath and rec port)

[@Hatcher426]

@@richardholdener1727 so basically same results as a super vic

[@johnb6055]

How is the holley vs vic jr?

[@joseiracheta3817]

It does well I'm sure

[@petergauthier5074]

Do a Ford 7.3 Godzilla you should be able to find them in the junk yards

[@jamesgeorge4874]

He can't find a 6.0, bro, they have been around 20+ years........

[@juanmangerita]

Explain why 5252 ??

[@richardholdener1727]

because the formula for hp & torque is as follows HP=Tq/rpm/5252-they always cross at 5252

[@gothicpagan.666]

A test with longer cam duration could nett some interesting results. I'm guessing a guy running this type of equipment is not running a 'race gearbox box, so the motor needs to pull from 3000 ish to get out of the turns?

[@trentdawg2832]

Single planes suck…..unless your installing it on a jet boat, they are worthless

[@richardholdener1727]

worhtless?

[@beardedforlife3740]

You'll think it's worthless when someone using a single plane intake and higher compression runs you down on the big end

[@jacksonbermingham2168]

The victor junior seam pretty average.. it under achieves quiet alot. Where the bigger holley/super vic actaully works .. someone should weld a divider in the the victor junior and see what it does compared to daul plane

[@jmullis78ify]

I think the reason the victor jr loses so much torque is because the two runners in the middle of each side are very short

[@anthonyguisti5533]

Wrong cam shift bro

[@123baalbaki4]

LS2 ? 8000 RPM

[@infamousnova]

Cam is too small for vic jr

[@richardholdener1727]

made peak power at 7000 rpm

[@infamousnova]

@@richardholdener1727 that doesn't matter, cam itself was to small. Thats same rpm intake with a spacer would have prob made more

[@Stevesbe]

Would be interesting to see how far you could go with those factory rods now that's there's good pistons

[@trickmytrailer]

What happened to the GT45 turbo challenge??