Worlds highest flowing conventional parallel valve SB chevy heads??
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- เผยแพร่เมื่อ 24 ก.ค. 2024
- In this, episode 62, DV looks at what it would take to build a normally aspirated (an atmo motor)1000 hp pump gas street drivable SB Chevy. This episode talks of the rotating assemble and shows off the awesome heads that will be used. Miss out on any of this mini series episodes and you will miss out on a substantial step forward in engine technology.
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Any car guy, would be a fool, not to listen when this man speaks, absolute legend.
"They flow a third of a toilet..." Classic line that only DV can come up with. Love it. Build it!
On the edge of my seat for this one Thanks Mr Wizard !!
I've only been porting for 16 years and love this
That's a crazy set of heads. Can't wait to watch this engine come together.
David, as a connoisseur of sbc and sbc cylinder heads i would say both the heads and the engine are and are going to be the cream of the crop!!
Great to see what everyday off the self parts can do .
As usual professor, a great lesson and insight into a monster small block mill I can't wait to see it in one piece, the head is a thing of what dreams are made of I'm curious to know what ratio rocker on intake n exhaust ,now I'm praying for you my dear professor ,Marvin is still with us RIP
Extra special! Good stuff again. David. Keep bringing it!
Great stuff David. Looking forward to the videos coming on this project. A bit unorthodox but that makes it exciting
Now I see why you can get 1000 HP from a SBC 468. I was considering a 434 SBC due to older head sizes, but the newer heads can handle the flow for the 468. Thanks for all the data so far. I will continue to watch the series!!
This is going to be one EPIC build and I'm REALLY EXCITED to see this masterpiece come into fruition. Cheers to ya and good luck.
Yeah, I want 1,000 HP, 14:1, 87 octane gas, and 35 MPG...
Man! That's diesel compression ratios, and 468" out of a sbc? Holy cow! You have my attention as always D.V. Thank you Sir!
Actually, 20 years ago we were taking SBC's out to 489"
Also Dart heads and World MoTown heads both used to be in the same building in Detroit. Guess there was a squabble and Dart moved a bit north and racer Bill Mitchell took World to New York.
My 550 HP SBC 405" is built with Detroit made MoTown Lite 220cc aluminum heads.
World used to sell SBC 454" 500 HP crate engines with Mo Town heads...
Sounds like a dart iron eagle or world products raised deck block, usually raised cam tunnel as well to allow the larger stroke. Then you can step into the 4.5" bore spacing blocks and go even bigger.
@@b.c4066 there are 500 cubic inch small blocks. mostly in grudge race cars
I am super excited for this build!
I can't believe you don't have a half million subscribers...gezzzzz.your a brilliant engine builder David and I thank you for them books I grew up on.sending love from NJ
Kenneth,
You do realize that guys like you could help my subscriber count take off - yes?
thanks for your support my friend,
DV
Oh, oh man. That was a very real very cool video. The sound of that engine/trans combo was AWESOME. The talk about fathers goes right to the bone. I have a 283 crank, my 68 impala handed down from my ( original owner) father in 1975. The 68 has been calling for a rebirth, and the gears in my head are spinning again.....better get some grease up there quick. Very very well done. I got to go back and re watch the destroked sbc videos again.
Great Job!
Sorry this comment got placed on wrong video??? How did that happen?
Great set of heads . To flow that well is absolutely incredible for a small block absolutely insane . I must see the outcome of this motor. I did a few 410 Small block Chevs and the best the heads would flow was a very stout 550hp and 490 toque. Moved the 68 Beaumont rather well.
A thousand naturally aspirated HP. This raddles my brain lol .Sir this is an engine that when ya get it done I would absolutely love a complete parts and specs list. Cause I have to build it myself . David this is a awesome build think I hear a 69 Nova calling for this engine. Thank you again Sir for your great info that's always spot on. Keep the adventure alive 😎👍💯%🇨🇦❤️🙏
Thank you Mr vizard I really appreciate your wisdom.
Nice piece
Great tech discussions !
Cant wait to see these heads used on your project!!!
I see Richards cylinder head behind you. I can't wait to see it run on the Dyno. Thank you for sharing your experience with us.
Know anybody else with a white engine stand? ... LOL!
Not to grumble on the otherwise great videos but for us head phone users could we get David's voice on left and right not just the left? Noticed it a lot on the latest videos. Otherwise great work been following Davids work since I was 16 and now i am 50 and still just in awe of the mans knowledge and willingness to share it when most boast knowledge is power.
Thanks for this. This topic (high compression, high rev, N/A engine) is really what is interesting, as I am trying to do the same on an air-cooled engine .
Who’s heads or are they heads you are doing if you don’t mind sharing.
@@tjakr3869 Don't mind at all... I have built heads for the Type 4 VW engine found in the 914, with redesigned 28cc chambers, a redesigned exhaust port, and so far, the flow is 235cfm @ 0.5", along with 1.73:1 ratio rocker arms - all designed to be interchangeable with the factory setup - Hope this helps
@@dannoyes4493 Awesome. I dabble in air cooled. I have a type 1, 2332cc with CB performance CNC heads, think 53cc chambers (does that sound right?). I know nothing about any of this but I am fascinated by all of it. Especially NA stuff. 23 cc chambers you must be approaching some of the static compression ratios discussed in this video. Also 1.73:1 ratio rockers is something that seems very unique to me. Thanks. Take care.
@@tjakr3869 Excellent! This is a hobby for me. Retired & bored, I restored a 914 with the intention of swapping either a 3.0 Porsche 6 or an LS engine... once I got the stock VW Type4 running, though, I fell in love with it - short story long, I had to start running calcs on everything, prototyping, testing, seeing what could be done... the heads and valve train are just the start - Mr. Vizard's videos really give me insight into successful philosophies and, in some cases validated the direction I'm going...
@@dannoyes4493 sounds like a fun way to stay engaged during retirement. I retired 18 months ago and just started messing with cars I wish you well. Take care.
Jazzed by your mention of showing us how to suppress detonation from super high compression on low octane.
I heard it’s possible to get combustion temps down by going super super lean.
Exciting cider! Thank you!
Leaning out will eventually drop temps, but your power drops too.
I wonder if he's going to pick a cam that has a lower dynamic compression?
Rounding all the sharp edges in the combustion chambers is one way. Playing with the cam events is another. Water/methanol injection is also a good way.
Long stroke with longer piston dwell at TDC can help...
Thanks for video!
I apologize, you could have told me that you pretty much wrote the Bible on small block chevy high performance engine's. I read those things from front to back, back to front, sideways and up side down. Wow, not that you need it or anything but you gained a fan and a subscription.
Thanks!
Thanks
Can’t wait for the episode to see how it will drive on 87.
Those heads are monstrous! I'm trying to decide on what size head, 220cc or 227cc AFR's, to run on my 385 sbc stroker. Lol I only wish I had money for part's like that 😅
Love this one.
The key to making those huge power numbers always come down to camshaft selection. When you have 468cid at better than 14to1 compression, as he said, the pieces are there to make it happen. I've seen a pro street Chevelle with a 468 smally, that was 20 years ago now, when that was unheard of. Believe me that sucker was Brutal!
Nope... HEAD FLOW is the key! Can't do anything if the heads don't flow...
And, actually, 20 years ago we were taking SBC's out to 489"
Also Dart heads and World MoTown heads both used to be in the same building in Detroit. Guess there was a squabble and Dart moved a bit north and racer Bill Mitchell took World to New York.
My 550 HP SBC 405" is built with Detroit made MoTown Lite 220cc aluminum heads.
World used to sell SBC 454" 500 HP crate engines with Mo Town heads...
@@BuzzLOLOL Nope, if you were paying attention and studied David V's books to the extent I have, just because a head has bigger valves or ports guarantees nothing. Engines need parts that work well together. Matching the right cam to the heads he got from the customer for this build. I'm not talking about crate engines here. Your throwing around displacements only possible with 10k race blocks.
So sorry for the loss of your daughter. It sucks that some folks such as yourself have to endure such pain. Take care.
Wow, not a SBC guy, but I can’t wait!
Really looking to seeing how you accomplish making that much compression on 87 work!!!
Timing i would say hav to watch for spark knock with that compression
Bleeding off cylinder pressure at the exact right moment would be my GUESS.
Yep, LOTS of duration and overlap, and an incredibly efficient chamber, including the "floor" (the piston top). If anyone can do it, it's DV!
GREAT HEAD, TAKE A LOOK AT THE MBE HEADS FOR SBC, HIGH 480 PLUS CFM, EXTRA STRONG ROCKER PAD..
Mr. Vizard, to make it simpler for you just say hit all the buttons🤗. Even though I don't have a small block it will be interesting to see. Take care.
Interesting. I'd be tempted to try E85 on it, just to see what happens.
With the current price of fuel, making that kind of power on 87 octane would be a great thing!
This episode is like Mr. Dressup for car guys
David, could you speak of porting exhaust manifolds. Thanks
I'm really interested in whether it makes that 1000hp on 87 octane, or whether it's an engine capable of being driven around on 87 and needs something more for a pass (like the Drag Week cars)
Don does beautiful work, love this project! If I can be of help let me know. Thanks, Charlie....Cheers
Hey Charlie my rascally buddy,
Thanks for the offer. You are always the good guy ready to step in and help.
DV
@@marvingvx1 I am!!
DV never disappoints although I'm sure like he said 1,000hp won't just fall from into his lap but if anyone is capable of building a 87 octane thousand hp small block David certainly is thanks for putting out another awesome video keep up the good work God bless
Kiitos!
Juhana,
thanks for a generous donation.
DV
Which video do you cover how you ran this high compression beast on pump gas? I would love to know!
Good to see what's possible. Most I know, hardly have the budget even for 23deg aluminum heads - from China! Being economically restrained, one might think there's nothing outside "the box".
David, I knew you had a Daughter but didn’t know she had passed Mate.
Prayers for strength David. God Bless
Mike Caruso
X-FEL-PRO guy 1988-1998.
Thanks for the thoughts Mike,
DV
David, You should consider getting a portable mic that you can clip to your shirt. It would massively improve your sound quality.
Just an observation, but 468 cu in would require something like a 4.185 x 4.250 bore and strike. I can’t get there with a 4.125 stroke and a bore that fits a 4.400 bore spacing that I’ve heard of. OTOH, those ports are truly beautiful! If you can make 1.25 lb-ft at the power peak, you’ll need to spin it to 9000 or so to make that 1000 hp from 468 cu in. That actually sounds doable! Looking forward to seeing that happen!
4.185" bore is simply a SBC 400 with a .060" overbore...
@@BuzzLOLOL Exactly. I’ve heard of 4.200” bores on a small block bore spacing, but not often. That only leaves 0.200” between cylinders with a siamesed bore block, like the 400 has. The 4.250” stroke would take an aftermarket, raised cam tunnel block, which is what he had-I think. That would put the pin really high in the piston, too, unless it’s a raised deck. Then it may be hard to call it a SBC any more.
@@bdugle1 - Small or big block is based on bore spacing not whether low or high deck blocks...
@@BuzzLOLOL Bore is limited by bore spacing, the usual parameter that determines small block vs big block. Stroke limitations depend on deck height. For instance, 9.020 deck with 2.125” crank throw (4.25” stroke crank) and 6.00 rod leaves less than an inch for pin position in the piston.
@@bdugle1 - SBC 400 and Olds 403 got around bore size limitations by siamesing the cylinders...
After 1970, Ford wanted to lower the compression ratio of the 351W as they went into emissions slug engines tech, so they raised the deck height slightly...
Olds and Pontiac don't have big and small block engines, but higher and lower deck height engines...
Ford raised the deck height of the 351C when making the Ford 400...
is that copper beryllium valve seats on the exhaust?
David were can i find a video explaining the relationship between compression cam lift/duration volumetric efficiency and and timing to be able to make power like that without high octane fuel
David is making that right now...
Ooo ok! 14?. 87? I have got to see how this is done. Also! Is this going to be on a daily driver?
14:1 and 1000hp on 87 octane has my curiosity. I run a sbc 440c.i. 4in stroke ad wish I made 1000 hp. I run 91 octane wite 11:1 compression
I'm running 89 octane with my 10.7 to 1 399ci. sbc with heads flowing 404 cfm.
@@heshtesh interesting!
Hello David, will you be roughing up the ports because they are very shiny which you stated is not good for mixing the fuel and air?
Yes they will be 60 grit finished.
DV
Have you ever tested running on propane? I feel there are some advantages, not necessarily hp related.
I'm just a little confused on how old are these videos? Totally interesting topic I've never heard about.
As we speak here about a week or so old.
We had motors that had 440 cfm flow at 800 lift.
David, are you considering E85?
Is that a 2.2/2.5 head on the bench at 3:45?
87 octane, if it was anyone else, I'd doubt it, but the furthest I'm willing to go is wonder, wonder how you are going to accomplish that, I have tried higher compression on pump gas,. I had no ignition advance, bad heads, it was a peaky engine, made power in a narrow rev range, and not that much, the best I did was 93 octane, but I went to the airport, the av100 and a bit of tweaking, it ran much better, the lack of a stall converter, and single plane intake. With 3.42:1 gears, helped nothing. But from around 40mph on it did Good, I'm very interested to see this monster!
👍👍👍
I'm enjoying my current school days
How many cc's are the chambers
David, have you ever got your hands on a set of MBE cylinder heads for the small block Chevy?
Paul, - - my son in law is one of, if not top porter/engine builders at MBE. Let me see what I can do.
@@marvingvx1 Hello David, I've watched your PowerTec 10 - EP45
several times & found it to be very helpful & interesting. As are "ALL" your videos. Regarding your recommendation to drill-out the rod journals of the crankshaft, is it equally beneficial to create "hollow" rod journals on flat-plane crankshafts?
Knowing about the "vibration" characteristics of flat-plane crank engines, I plan to take every step to minimize this issue.
I sincerely appreciate your attention & hope you will reply to my question.
Best regards,
Ben
Pump gas sbc 1000hp! Please post the build parts im gonna build one.
👍👍👏👏
To suppress detonation with 87 octane, are you employing water injection?
Shhh - yes but keep it quiet.
DV
can you make a small block mopar like this
I second that. Not sure i want to drive a 1000hp A body but one that spins at 9500 would sound oh so sweet. David when will you include us Mopar people?
@@philwhoareyou3677 They do make them just not pump gas
@@ianmopar our pump gas in New Zealand goes up to 98 Octane and we can also get E85 Ethanol blend. So having super high compression engines down here isnt a problem. But would be nice to hear Davids thoughts on Small Block mopars as we have lots down here between Australia and New Zealand they were very popular in the Chrysler range.
Have you ever done a 230 tornado engine from Chrysler that makes high torque
This channel is dead for now, find his other channel here: www.youtube.com/@DavidVizard
That you know of!
87 octane and this High compression ratio & H.P... WHAT? I got a lot to learn
CAM specs anyone ? I'm gonna say on a monster mouse like this beast to make 1000 hp we're gonna need to have 266 @ 0.050" int. by 270 @ 0.050" exh. with around 0.800" lift , 110 LSA, he did say he wanted to be a bit shorter camed 5:52 and maybe 17 to 1 comp so peak cylinder pressures at around 7000 rpm ?
That duration is way small.i run bigger In 400s with 13 to 1. I'd say 290s @ 50 maybe 300s.
@@ryangulley2051 What are u using that in ? seems to me with a cam like that you wouldn't be making power below 4k, what rpm are you shifting gears at ?
87 octane fuel, 14:1 or better C.R., 1000 hp? I'm thinking maybe a little MW50 to keep things happy. 🙂
How in the world is it possible to run compression ratios of 14:1 plus, with 87 octane fuel??
E-85 pump gas?
How are you going to have 14:1 on 87 octane? then he said 17:1?
Why don't you flow the headfirst just for the heck of it to see what it flows and then do your cleanup and see if it didn't hurt any flow
All three benches have priority consult jobs on them!
DV
About two cylinders of that would be all I need on the street.
For a minibike...
@@BuzzLOLOL If you need 200HP for a minibike-----
Do you Only work on Chevy
Where can a fella pick up a set of those heads?
Oh ok, i see. Thank you
It would be either All Pro or CID as MBE don't do conventional heads.
For a second there, I thought you had a 60 year old phone!
He will be in the 900s .
This thing should be called "Making Horsepower The Hard & Expensive Way".
I don't get it so far - is it for some racing class that bans superchargers? Wouldn't it be easier to start with a Big Block? Perhaps it's for a motorcycle that doesn't have room for a bigger engine and associated supercharger and turbo?
Don’t think he is after easy think he is after unique.
@@tjakr3869 Go-kart engine? There's hardly anything bigger won't take a Big Block.
I've seen 1250 from a 527 hemi. N a.
We should give this engine a name , whaddya call a super stroker SBC that breathes like a BBC ?
Water methanol???
yes but keep it quiet for now.
DV
I made 1000 hp from a 427.
Later on, turbo it on natural gas!!
Sure are lot of scammers in the comments here. Be careful folks.
Sounds like a non doable deal. 17.1 comp he said and on 87 Oct. Omg.
Dammit, I was 2nd on the likes hit.
I got in just before you. Wrapped to have number one position
@@isaacandruthruss90 This isn’t over…
@@larryanderson2766 bring it on
@@isaacandruthruss90 I’m parked on a worker’s compensation claim courtesy of Daimler and have all the time in the world (within reason). This TH-cam opportunity for soaking in everything DV is absolutely incredible. I’m still sitting at 2 first’s, a 39th and a second on the hits over the last 4 posts. Just saying…
@@isaacandruthruss90 DANG it's a bride and groom comment .... wonders never cease !!!
I wouldn't doubt a word that you are saying, if you say 1000hp its going to end up being 1100hp in the end with your knowledge
Calling CAR 54 ... Calling CAR 54 ... CAR .. VIZARD come IN VIZARD!!? ... Vizard are you engaged in extra cirricular activities?? You better get back here before the Chief arrives!!
Dave, you ask me to email you after your unfortunate loss as for production I apologize my wife just had surgery and I have been worn to the bone I think I could up viewer numbers with not much more than intro bait... there are secrets to going viral .. I,m a fine writer who loves physics of all kinds 35 years under big names not everyone is good however such as yourself I share many spectrum styles learning qualities as I see in you The end of this end of the month would be perfect to meet and I would love to present you with a detailed list of my possible contributions While quite sure we are aligned in many thought patterns also I am quick lyrically and eloquent when i,m not writing it my mind is a paragraph ahead most times TY again good sir i hope you take me seriously
Porting jobb tou dou...I dont like wath I se....only litel ting tou dou ...I work on Brodix 11X Heads building 434 cui 1000+hp with help of Nitroz...12.5.1 komp...
Scripted show
This will be an interesting build.