Dual quad carbs have built in spark plug holders! 😁👍
@GidDree
7 ай бұрын
Close to 1000hp for an NA SMALL BLOCK. WOW💪
@gdaytrees4728
7 ай бұрын
Continuing the Small Block Chevrolet's excellence. First year of production 1955. Continued development because of the open aftermarket industry and the quality of the original design. I love Pontiac V8's, Mopar RB and B big blocks, even the Mopar LA, but i hold high regards for the SBC.
@nickstephens2913
7 ай бұрын
Check out Brett Miller, dam near every one of his w9 /w8 headed monsters make well north of 1000hp
@9rjharper
7 ай бұрын
It’s a sweet engine for sure, but sprint cars push that number all the time and have to last 30-50 laps at 8,500+ highs (sometimes buzzing over 9,000). Then they last 6, 10, 20, sometimes 30+ races at that. I didn’t catch what fuel he’s using in this, but sprint cars are mechanical fuel injected methanol.
@OAndy2222
7 ай бұрын
Methanol does a lot for a healthy breathing engine cleaters had 600whp out a stock 5.3 lol
@cargotoolshop5319
7 ай бұрын
Call it what you want but I'm putting money on it's a big block, just look at it
@cjespers
7 ай бұрын
Didn't see Dewey, lol. Thanks for the video. You guys rock!
@michaelloth5870
7 ай бұрын
Is this a canted valve head for the small block? Or a big block destroked to 376 CID? I was not aware of these heads for an SBC in the Pro Stock truck era.
@thegdfp6447
7 ай бұрын
Was that the super short deck block GM made back then? CG like the DRCE stuff? I think they used a BBC water pump
@rolandtamaccio3285
7 ай бұрын
Alright , I didn't start this vid ( ten secs at most ) , the belt drive lock nuts got loose and retarded the cam , lowering low speed combustion pressure .
@thegdfp6447
7 ай бұрын
Vacuum leak was obvious. I figured it popped epoxy, but wild that it actually pulled aluminum out. I worked at Batten in the P/S Truck era, and one day, John Lingenfelter brought a pair of heads in a suitcase for some flow bench/ swirl meter testing. That class was cool.
@fast97z24
7 ай бұрын
One has to wonder where the epoxy and aluminum bits went. Oh wait, they embedded themselves into the valve contact surfaces 😬
@leftyo9589
7 ай бұрын
never thought of using a carb booster as a sparkplug holder. thats using yer noodle!
@GoatPilot04
7 ай бұрын
Steve, if you do another video on this little beast could you show the modifications more extensively on the cylinder heads? Anything that was done by hand would be awesome to see. THAT is a true hot rod engine!
@markwelliver2566
7 ай бұрын
agreed!
@throttlebottle5906
7 ай бұрын
it would be easier to find and show small areas that were NOT touched and hand modified. 😉
@Thriller627
7 ай бұрын
Hahaha , not the Flux capacitor lol Thanks Steve for all the knowledge and amazing content! Cheers!!!
@lewismocaby3646
7 ай бұрын
Been really curious about this engine, from what I remember about the pro stock trucks they ran the oddball short deck height bow tie block with the Olds Aurora bell housing. I’m assuming that this little monster is one of those engines, if that’s the case they could be milled down to around an 8.200” deck height. I do remember that they raised the cam tunnel by .391” for better pushrod angle and shorter pushrods to eliminate some of the deflection in the pushrods and lightening the valve train. Some of those teams had some really extravagant block lightening programs back then so I can only imagine how sculpted that block is in places that nobody would see. That’s definitely a cool piece you’re working with there. Looked for one of those castings for quite a long time but finally gave up and bought a Merlin IV and went big block big inch but still keep a watch out for one of those. Y’all are still doing an awesome job with the channel and congrats on the new machinery over the past few months. 👍
@mfree80286
7 ай бұрын
That's one fancy annular spark plug inspection rack you've got there, bet it even has a lever operated solvent wash function :)
@brianholcomb6499
7 ай бұрын
Why people (like myself) fell in love with small blocks 👍🏻👍🏻👍🏻👍🏻! 2.5 hp per cube is also pretty awesome for something that old! New stuff is so much better! Aussie pro stock is right at 3hp per cube @ 398 cube! 400 cube small block rule over there! Tractor/ Truckpull is one of the hardest things on an engine! Wide open for 15secs + & yanking them backwards 😳😳😳😳!
@edwardwood3622
21 күн бұрын
That’s a big block isn’t it?
@michaelwynne4346
7 ай бұрын
I remember a lot of guy's who ran Pro Stock Truck were not happy when NHRA dropped the class after only a short period of time because of all the time money and testing they put into the class.
@wfoguy
7 ай бұрын
NHRA was seldom the racer's friend. Long time racer's have many stories.
@mitsnevets
7 ай бұрын
and exactly why the Bradenton event last weekend was so popular no NHRA involvement@@wfoguy
@111walter111
7 ай бұрын
No Happy Racers Association@@wfoguy
@gregoryb7485
7 ай бұрын
900 HP NA SMALL BLOCK , AWSOME!!!!!!!!!!!!!!!!
@steelmill
7 ай бұрын
I'm surprised you don't always index the plugs regardless. I remember seeing the magic marker lines on the porcelain on late model stock car engines at Langley Speedway in Hampton ,Va.
@edw102472
7 ай бұрын
It's useless unless you need the clearance
@SS454LS6
7 ай бұрын
how much horsepower did the Pro Stock truck engines make? I'm curious since you said this engine's power isn't even close.
@MC-re2ry
7 ай бұрын
Doggonit. I had a briggs engine on a lawn mower have a similar problem - but I was sure this problemn had to be more difficult.
@THEFERMANATOR
7 ай бұрын
Those engines were originally 358 cu inches(4.185 bore x 3.25 stroke was the common sbc build) as the rule book capped them there. I hadn't ever seen a set of sb2's worked over like that with the epoxy. I know in the 80's that was common, but not so much in the 90's. I know back in those days the heads were sold by GM in roughed out form and it was up to the finisher to put the runners, guides, & seats in them.
@GoatPilot04
7 ай бұрын
Hey, I said cracked intake!! I was kinda close lol
@bigblockjess617
7 ай бұрын
Man that motor is a screamer!
@josephBaron-pt2en
7 ай бұрын
What type of ignition is on that small block Chevrolet?
@webbracing2021
7 ай бұрын
The greatest part is using the booster as a spark plug holder
@BrianHodge325
7 ай бұрын
Loved prostock truck. What power were they making in that application?
@lukk4273
7 ай бұрын
Old school Pro stock tech baby!! Love it.🤘
@jimmanis6717
7 ай бұрын
That sucks...Sorry, had to say it.
@glenclifton4563
7 ай бұрын
You are right. I learn something most Everytime I watch a video. Thank you!
@kylemartin6008
7 ай бұрын
Keep up the amazing work man! Love what you’ve done Cleetus McFarland and his channel!
@halfwaydecentvehicles
7 ай бұрын
How are those sb heada look like bb heads, exhaust ports canted valve
@Naoj2024
7 ай бұрын
LITTLE CHIEF HEADS ..?
@ljkking622
7 ай бұрын
My guess was the epoxy in the intake runners came loose but I didn’t answer the why I guess.
@therev6689
7 ай бұрын
All the old school ghetto ass weld and chopped up shit. I love it 😂😂😂haha
@wfoguy
7 ай бұрын
I raced big port 426's. They all had tubes. They handled big boost and explosions without failure. Were those pushrod tubes had from chewing gum wrappers? :) Looking at your plugs and coming from an alky background, my faint memory recalls that the plugs would be clean in a sealed up engine but we looked at how many threads of plating were burnt off. I haven't thought about that for 30 years, for real not make believe. :) That engine was right at 2.48 hp per cube. What does a current na engine do?
@wanderingweederspapa7878
7 ай бұрын
Its amazing how many hours were spent on these Era engines
@sebbonxxsebbon6824
7 ай бұрын
You can't make real power unless you have the flux capacitor!
@andersmontgomerie9852
7 ай бұрын
Love the Orwell quote on the dyno room window: All animals are equal, but some are more equal than others.
@montestu5502
7 ай бұрын
It sure looks like a big block to me.
@DaveDaveson
7 ай бұрын
for those wondering 1.21 gigawatts is about 1.6million bhp or roughly 360 SMX engines.
@johnwalker863
15 күн бұрын
1000hp NA SMALL block.. I want one!
@racingdatasystems3708
7 ай бұрын
He needs to make a shirt with his hand giving us the dyno HP trace 😂
@lildno2007
7 ай бұрын
Hey Steve. Love the videos. What kinda alien head flow and crazy cam timing is required the make 900hp out of 376”s?? This is mind boggling 😂
@matthewmccormick2417
7 ай бұрын
For your spark plug problem you needed a AC DELCO R45 or NGK 3522 Plug number if i am correct. They are the short reach plugs GM used back in the day
@raykaufman7156
7 ай бұрын
Good thing it WASNT boosted. That would have been a recipe for disaster...
@jasonsullivan324
7 ай бұрын
Bill from old man's garage needs that in his monte carlo
@hankclingingsmith8707
7 ай бұрын
He'd blow it up,or run it out of oil
@rockkhound943
7 ай бұрын
@@hankclingingsmith8707lol
@Stoutguy
7 ай бұрын
I reckon ur smx would almost be pumping out 1.21 jiggawatts, that thing needs a flux capacitor😂 loved the back to the future reference steve!😅
@throttlebottle5906
7 ай бұрын
the old spark plug indexing and copper shim stacking routine......
@johnwalker863
15 күн бұрын
Big ass bore space, headers and looks like large valve covers ... who makes that Small Block ???
@tomeickhorst6787
7 ай бұрын
This is basically a 400 block with a 350 crank right? Like a destroker 377
@scottkrisher2215
2 ай бұрын
Even though it’s not a flux capacitor, it would be interesting to know what is the energy storage capacity of the fuel being used on a specific engine like the SMX and how much would that equate to and watch? Asking for a friend
@C6Z_Bob
7 ай бұрын
Dang that engine sounds beautiful up there over 8000 rpm. Reminds me of the SB2 days of Nascar
@stevemorrisracing
7 ай бұрын
Listen to the Ford in the next video 😁
@matthewmccormick2417
7 ай бұрын
Ohh BTW, The Heads look like the old SHORT reach plugs not the long reach like you used. Maybe camera angle made it look that way but i remember the short reach plugs
@judgehastheword9069
7 ай бұрын
I remember using those spark plug index shims, On one of the motors I built for my Fiat Topolino Altar. Was having same trouble piston hiting the plugs. I still have alot of stuff . I even had a cam that Jerry Hulse had one of a kind.
@uncutcurrency
7 ай бұрын
You said you checked for vacuum leaks in the first video. Kind of misleading 🤦♂️
@funone8716
7 ай бұрын
So from an industrial not racing point of view.....Does the dry sump pump really need to spin at crank rpm? Seems like spinning a hydraulic pump at that rpm would contribute to whipping air into the oil, and take more HP to run. How many gallons per minute does the engine actually need? Could the pump spin slower? Could the pump gears be larger but spin the pump slower for less parasitic drag? Just curious questions.
@Randysshop
7 ай бұрын
It was making 2.5HP per cubic inch! really good.
@johnnymissfire8464
7 ай бұрын
Now that you remind me I had a similar thing happen to me when I had some porting on an old Harley. It was ported a bit too much and developed a pinhole in the top of the intake port into the rocker area.
@Vgk36
7 ай бұрын
I just want 400hp the the wheels that can survive multiple drift events . Wo spending kajilliins of doll hairs 1:14
@philgulledge2284
7 ай бұрын
This exact thing happened to my Blown Alcohol Buick at Dragweek last year. Took me out on day 1
@djwilliams4714
7 ай бұрын
it's hard to remember all of the "old tricks" after working, and improving modern engine for the past 20+ years...
@carbonharmonics
7 ай бұрын
Just increase the wall thickness of the intake ports where the holes got sucked through.. Isn't it that simple? No?
@cargotoolshop5319
7 ай бұрын
That's why the new Ford 5.0 is using oil, wind it up and let off the throttle, sucks oil passed the rings,
@GRANITEMONUMENT
7 ай бұрын
So you have to move the piston down just to remove or install a plug?? And what use crush rings to index them properly, I never looked, but I would not think the strap is indexed to the threads in manufacturing? So luck of draw?, or you need to add or remove material to index them?
@Greyseason519
7 ай бұрын
Steve, are you saying, that this was a possible "Danger to manifold" situation?
@DavidMcFaul-7007
2 ай бұрын
Hello there. I hope you see this Mr Morrison. How would a wastegate for a turbo or supercharger work can you set up like that except install backwards so instead of losing pressure on the outside it loses pressure in the manifold for that split-second you may need to come down so you don't burn holes and things. Just a thought let me know
@randywl8925
7 ай бұрын
Where are the "holes" Im guessing the gaskets? I dont understand if you actually means "holes" or that "some chunks were missing" "Holes" to me are like drilled or punched. The camera distance was too far away to see the issue. Thanks..... I knew for sure it wasnt a transmission line. 😁
@Mike62501
7 ай бұрын
Only thing from first video that didn’t give info on was engine smoked on restart I assumed it was Rich smoke if you would have said oil yup leaks like you found had those in the 70’s running F/MP and other classes where we ground the crap out of push rods CSA haaa glad you found it and something like this makes us all nuts after years of going along singing a song haaa😂
@martinlucas4882
7 ай бұрын
Uh hello ???? That’s not a Small Block Chevy. ???? Am I the only one the can see that that’s a Big Block??????
@lukk4273
7 ай бұрын
Is it me or is that kinda crazy power for only 376 cubes?
@chrismcconnell4336
7 ай бұрын
How do you index spark plugs, do you just keep tightening until your line on the porcelain is facing the sky?
@deankdx
7 ай бұрын
i was on the right track with My diagnosis (crack in the head causing that problem)
@raykaufman7156
7 ай бұрын
Power wise, how do those baby big block heads compare to an SB2?
@PeaceMarauder
7 ай бұрын
Oh yeah, forgot my comment on yesterday's vid.... "ain't got no gas in it" :P
@Profabdesigns
7 ай бұрын
I am wondering why the exhaust ports are not spaced like the typical SBC where the inboard port are next to each other? They appear to be spaced evenly?
@PeggyParrow
7 ай бұрын
There really is outside pressure, at 14 .7 lbs.per square inch against our body ..air pressure ,thats why we need pressureized space suits and pressureized air plane cabins because the air pressure is less with higher altitides. Dont feel bad, most people forget this !
@stephenbailey7137
7 ай бұрын
18 hours ago, not a fan of epoxy, weld, grind, polish or machine if you need a hand let me know.
@jamespatterson9446
7 ай бұрын
Shortened deck? Is that the reason for the water pump being lower?
@artbennett7321
7 ай бұрын
Tractor pulling is cruel and unusual punishment for an engine like this. Sad.
@rightsidelanechoice7702
7 ай бұрын
Those plugs are wrong bra. They take the short shank style. Look at the amount of threads in the head. Those are going in way too far.
@markseaman4750
7 ай бұрын
Almost 2.5hp/cubic inch. That’s some pretty stout power naturally aspirated. Impressive.😳
@whyamihereg
7 ай бұрын
Cool old school power !!
@JKHYT
7 ай бұрын
I feel like this was a trick question because in the first vid you said you checked for vacuum leaks and there weren't any.
@patrickmoore1017
7 ай бұрын
Are those GM splayed valve heads for SBC's?
@Scootermagoo
7 ай бұрын
I was right I said cracked intake port, but I got the location wrong I said rocker stands.
@ryno6101
7 ай бұрын
Flux capacitor is still bad Go back in time you’ll see 😂😂❤
@thejackofeverything7961
7 ай бұрын
you didnt mention they hogged the intake runners out so much they had to epoxy them... you wouldnt guess that unless youve done it...... which most of us woulda never atempted lol
@garysells4259
7 ай бұрын
Boss 429 Push Rod Might Help You!
@johngoodman7160
7 ай бұрын
My bbf indexed my plugs is a must 😂560bbf
@dalestoyanoff1171
7 ай бұрын
Gentlemen that I knew would remove the strap and let the piston would allow the spark to occur.
@awdss_silverado1449
7 ай бұрын
I actually said cracked manifold or head on fb post lol. But not from that exact reason
@Bill-flatplanefool
7 ай бұрын
What would this have made in a pro-stock truck ?
@struanrobertson3417
7 ай бұрын
That's a proper spicy engine.. I take two 😊
@thomasward4505
7 ай бұрын
But the problem was an intake leak where there was some oil which is what a lot of people guessed .in your description you did not make it clear that you checked the underside of the intake for leaks
@3800TURBO
7 ай бұрын
I cannot imagine the hours in that engine. We lazy these days, all on the shelf 😆
@frijoli9579
7 ай бұрын
Well, I got the reason pretty much on but wrong cause!
@stevef4969
7 ай бұрын
Was it the muffler bearing or the pincher valve ?
@ronomark497
7 ай бұрын
Do you have the oil pressure box checked for all of your dyno pulls for the customer engines?
@jamespatterson9446
7 ай бұрын
Getting it rich and safe is good it'll make the torgue that way and keep things from detonation under load with the right fuel
@adamlambert3892
7 ай бұрын
That’s nuts that the tolerance is that close to have to index the plug that close yikes
@redrumss3464
7 ай бұрын
Bbc heads on a small block def work 🤣🤣 gotta love sb2 🔥
@crazylarryjr
7 ай бұрын
The epoxy cracking or breaking crossed my mind, But assumed by the age of these motors didn't think the epoxy aged that much to be breaking down
@msnapp169
7 ай бұрын
That's was gonna be my first guess but I wasn't sure how old the motor was
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