Carbureted Cobra Jet Coyote Engine Build: Long Block and Dyno Testing 

Heads ported,cams,intake and higher compression. Good results.

Get someone who knows efi then, not some of your corn fed 1920 “technology”

@@clarissafarmer3547 no thanks I like my gas mileage

Efi is the new wokism for engines, Carbs are for performance, people dont know how to tune carbs.

...like they're gonna out perform R & D from Comp in a day of dyno time lol. Good effort tho, its good to see the adjustments and results

1970 was the first year for Mavericks. And I agree...Mavericks are just crying out for a big honking engine.

There were mavericks titled as 69.5. You can spot them as they have key in dash instead of column. There are a few other minor differences but most wouldn't know unless they knew.... Take care

***** Maybe with an Cobra jet intake and VVT?

***** Hell ya cant wait...

***** Looking forward in seeing the results.

***** Im sure it will be with the the Carb making more top end power, and the efi making a broader power band

***** Thanks for the info i don't mind being corrected lol

Daniel 😂 👏 but not really don’t forget about 302 sbc in the late 60’s turned that from the factory

bone stock would float valves long before 8 grand. built right they will be more than happy at 8 grand

I'm a ford guy, but you must admit, the LS engine is simple, affordable and can run 700hp all day long without a supercharger or a turbo.

And no bailouts.

This would be great on 5.4 3v. The v.c.t is a troublesome pain until you lock out the cam phasers.

Cams are based off of overlap. Modern, efficient heads don't need as much overlap as older, non-efficient heads. So when you have high duration camshafts so that engines will pull rpms, you have to increase the LSA a lot more than you normally would in order to keep the overlap down. A lot of my pulling truck engines run 119-120 LSA.

It's 314 cubes now so a hair shy of 5.2 now. Ported heads, bigger valves, hotter cams, bored, sleeved, even upgraded main bearings and oil pump to handle the RPM...honestly I expected more and like a 9k rpm engine when I first read the article.

94XJ I highly highly doubt this is even a aggressive setup. The cams are probably mild and the compression is most definitely mild and the fuel too. There’s a 5.2 making 600 plus NA high comp big cams. Like they said they didn’t go into very fine tuning.

@@94XJ def not sleeved lol

@Google Sucks www.hotrod.com/articles/4-8l-crank-ls3-block-how-to-build-an-8000-rpm-ls-stroker/ You were saying?

***** Curious about the cams.. They aren't stage 3s or the ford racing cobra jet cams?? Where can I find these?

They did make a 1,000hp turbo version. www.stangtv.com/tech-stories/engine/1000-hp-low-compression-coyote-engine-build-part-2-the-long-block/

There's nothing like an awesome 351w!!

Rick P. I'm sure you could. Or you could just buy a lazy 572 big block and not have to do anything to it. But try to make the same NA power with 302 rather than a 406 or a 572. Not so easy to make over 550hp now.

try doing that with 302 cid

@@cth0211 have years ago. Just need a really good set of victor jrs at the time. I had a spare set of Jimmy Larocca's renegade heads. They flowed 330cfms at .550 motor made 603hp at 8100rpms and had 12.5 baddest little N/A motor I ever had. Have a sbc 427 with AFRs that makes 647 on pumped 93 and cost half the price. You can make power with anything. When your on a budget it's had to beat Chevy.

The children who think their 6.2 Chevy motor is far superior have yet to grasp the reality of GM dropping the Camaro because 5.0 Mustang is eating them for lunch.

The Big bore mods is $1,900 if you supply the 5.0L $1,305 for Oliver rods $1,200 Mahle Pistons/rings,etc $1,500 in parts/labor on the heads Probably $1,250+/- for the carb and intake. $1,000 for the Meizer coyote water pump $1,250 for the COP controller, cometic gaskets, bearings, ARP studs, Oil pump upgrade. $1,500 for Comp cams and lock out plates $1,250 for headers and coils SO...about $11 grand if you have a coyote 5.0 and do almost ALL of the work yourself. For that much you could easily get a Dart OR MAN-O-WAR Block and build a 900+hp stroker with premium parts...for less.

JerseyMikeP thank you for the reply. I'll probably dart MAN-O-WAR motor then.

Oops It was suppose to be DART (OR) man-O-war block.... just fixed it;-) Here's a Man-O-war build that makes 1,043hp on pump gas with a SC ;-) www.mustangandfords.com/how-to/engine/mmfp-0706-ford-stroker-engine-build/ This New Windsor...almost cost the same as the MODs alone on the coyote block. And the cam/valvetrain /intake is about 1/3 as much. With the SC this would cost as much as the EFI version of the coyote build in this video. Not to mention the 445ci in the article makes almost 900lb-ft almost double the coyote in this video. Man0O-War block is Iron...but would weigh about 50lbs more than the coyote or iron stock windsor. Dart offers an aluminum Block...but if you are spending $4k on you could get an aluminum big block for the same price and Rock a 540

JerseyMikeP lol it's cool. Never heard of the builds so I went with it.

JerseyMikeP I'm excited about building it. It will be a first for me. Thank you again

It looks like they used PERMATEX assembly lube. I use that bottle when rebuilding engines, Clear bottle red lube white writing. Redline bottles are usually black, comps cams are black or white and Royal purple lube is of course purple;-) cdn2.bigcommerce.com/server4900/f4083/products/71419/images/83870/418YHKM896L__54277.1408083177.1280.1280.jpg?c=2

No but a V8 making the same horsepower at 6000 rpm sounds a hell of a lot better.

DEEREMEYER1 LOL no it doesn’t!!!! Higher rpm v8’s sound better!!!

More than you can afford pal

Holy shit dude. You're running 128 degrees LSA? Give it some overlap and bring on the torque.

So every DOHC isn't living up to your standards. most make peak < 7k and only ferrari, s2000 and GT3's make peak in the 8k range. I do agree all the DOHC's that make peak at 6

Axle it still has 240/246 @ .050 and only 314 ci.

great answer! thank you!

krankensteinrocks your 408 also has 94 more cubic inches then this coyote. So when it comes to horsepower per cubic inch. Your 408 get destroyed

Agree, Kranky. A 5.0 Coyote can get as big as...um...5.2. A Windsor can end up in the 7.5 range. My own Windsor is a 438, and I could have gone to over 460. Some like a little torque BELOW 6000 rpm's. How about over 500 lb/ft of torque from 3000 rpm's to 7000 rpm's. If a Roush 5.8 can put out 900 naturally aspirated ponies, think what a 7.6 can give you.

probably not .. i would just like to not have to convert my 69 stang to electronic stuff .. much rather convert a new engine to an old technology ..but i`m happy with my 429 ...

Just wot (wide open throttle, im talking like 1-3hp) & the best carbs 500-1000 bucks (size depending) at most and the good efi system can start at 2k- the very best 4-8k and for people that arent computer savvy they can be a + but carb do take a few month-lifetime to master(your mileage may vary) . Efi gets much better mpg and tend to have a much better bottom end depending on how crazy your cam is. Top end tuning on a carb is easy, its the mid to bottom end it takes alot more time and effort. I tend to like carbs better because I can tune a carb to almost perfection and they're much cheeper. If efi was in the 1200-2000 I would run efi just when I already have 10-15k in a motor I tend to like to save money somewhere. You know what I mean? It the same reason I still build lsx, sbc and bbc is the dollar per hp and aftermarket support. I want to do a mod motor in the future. I just want some aftermarket support other then ford ya know?

+Chenowa Hartley It's DOHC per bank so 4 in total.

+GlassTopRX7 Cool Please Check out my channel I'll check out yours

+GlassTopRX7 I also just subbed

They are showing more ways to make power with this Coyote engine .. when the Chevrolet people do this the LS MOTOR by the way is still a push rod motor, you think it is the coolest thing out there. so hush up and lesion.

Nope, he says Carb'ed CobraJet Coyote. It's a tongue twister though. ;)

You misspelled your hashtag for Ls1 shite #HarshTrash 🤣 You wont find those engines forever

Not only that you can buy used coyotes too..... Use some logic.. .. I have a build that will destroy whatever you own.... In fact several because you build used garbage. I have 327 c.i. all aluminum modular Ford. Yeah it cost 20k but dynoes far better than this coyote...... 13.5 to 1 comp ratio E85 , gibtec custom pistons, Trick flow 195 2v heads with hand porting/clean up, custom dual plenum cross ram intake designed/built by me (screams intake made 60 more hp and 37ftlbs torque) I specced the cams, block is the cammer/TR50 road race block. Lets see your turd scream 8000rpms for hours.... It won't... Mine will.... Imagine that... A block made specifically for that vs a junkyard turd. Roush made 800hp 5.0l 4vs with this block. Devastated the competition.... 😂 It was the ground work for the coyote. They built this engine all wrong so you ain't totally wrong, ill give you that.

Don't have to. Carb development is proceeding faster than fuel injection development. None of the developments are mileage or emission projects, either. Just good old fashioned kick azz.

You miss carbs better start eatting.

Why not add a Procharger to this setup and make that much more power. Would make 1000+ easy

S550 Racer you street outlaw guys crack me up. If it ain’t making 1500hp people say it’s slow. This isn’t about a peak number it’s an N/A engine.

Actually, the carb is much cheaper than any possible supercharger combination. Especially if you got through welding 101 and can fab up a manifold. Crack a catalog sometime. I hope you aren't saying buy a junkyard blower. Then, you still need an intake, etc. Plus, this is a "starting point" build. Most of the cams are ground to compensate for the feeble abilities of fuel injection...need to develop some better ones. Bigger carb, better headers, etc.

S550 Racer people like you are so damn annoying. Not everyone wants a boosted car. Some people like NA power band and sound.

Basically, while 590 on gasoline isnt bad, the engine makes that and then some totally stock with an E85 tune 2018 and up. It really needs nothing straight out of the box except for the basics, intake, exhaust and tune and you have a 10 second 3800lb car.

Because the 427 overhead cam engine was built in the 60s… also. They do. But with 50 years of technology in between. Look up john kaase’s rendition of the 427 sohc engine. He builds them from the ground up and takes care of the shortcomings

Lol!😂

+jose lazaro (caveman) Your windsor is a pushrod v8 with 1 central camshaft that operates both intake and exhaust valves on both heads. This engine has 4 camshafts total, 1 for intake and 1 for exhaust on each head.

basically he trying to say, you have a ohv engine = 1 cam, that's a DOHC engine = 4 cams..also sohc=2 cams

This engine has 4 overhead camshafts. 2 for intake and 2 for exhaust. You will notice the engine has 32 valves. You 351 only has 16.

im guessing he watched the video and didnt understand much

***** badass. E85 rocks

Timing makes power and requires damn good fuel

For real, 550 DYNO hp with shyt sticking way out of the hood... Or an ls with some compression and cam making that to the WHEELS?

ya, I ran that back a few times, 128, what? I think that must be to keep the vacuum high, but it as I remember from 30 years ago, lol, 107-110 is the number for high rpm valve over lap, the idea being the the exhaust side is put a vacuum on the intake side...if you can 'dig that'? love to hear from some serious expert on heads, cams....

Shawn Raymond Pro stock cars run alot of lobe seperation out of necessity (cam lift and duration are so large), but i would think this motor would not be in this league.. i do not have much experience with dohc motors with VVT and Cam Phasing technology... ???????????? builder answer question ?????????????????????

When you start getting past things like stock internals it pretty much starts becoming more about how much HP you want to make that determines how much it's going to cost i.e. 500, 600, 700, etc HP engines all cost about the same to build similarly unless it's a real odd-ball engine requiring a lot of one-off parts.

After 400 hp with a 302 its no longer a "is my engine going to blow up?" its a "wonder when its gonna blow up?". A 302 block is shockingly weak, those same mods on a 351w and you'll not only get more power but you'll also have a stronger base for hardly any more than a 302.

It won't blow up. It'll take a lot more to blow it up

Dominik Kus A 302 over 400 hp is a ticking time bomb, don't believe me see it for yourself.

jr540123 who builds your engines. 302 have strong bottom end even on a 2 bolt. Your clearences must be tight boi

B00steDevil Strong in lower power apps for sure but you push over 400 its a hit or miss game, least that's the way it is with the newer blocks that were designed to be able to use roller rockers. Never needed anyone to build me an engine yet my stock 302 in my F-150 is still doing its job at the moment and will keep doing so until I put my 351 in its place.

CAKED Racing I'd feel pretty comfortable saying you could buy a Ford control pack and a set of 47# injectors for way less money than a sheet metal intake, stand alone ignition, and a good carburetor. You'd also have dramatically better drivability with the VCT enabled and fuel injection.

Depends on what this engine is going in.

Reminds me of the question when Daddy Dave first went the procharger route....... Carbureted? Why?

+Jay Groom Yeah, I don't understand it either.

+1000 what you said. My guess is it was just for fun and giggles.

+Jay Groom To drop it into an older car without any computers?

Sure, but why run a coyote which will cost you a gazillion dollars when you could build up a small block and trick it all out and make it more period looking (also easier to shoe horn in to old engine bay) and have money to spare for suspension upgrades and the like?

Jay Groom I don't know, I wouldn't use a modern engine either, but not everybody wants the same thing. Some people do things for the F of it. If you got the money, go for it, I say. lol

+Louis Piscitell Whatever.. If you aren't interested, why watch? BTW my pushrod old tech 9.2 SVO hybrid block with old tech Roush designed (in the 80's no less) C302B heads makes everything a LS does. Sorta Cleveland, Sorta Windsor power well into the 500's along with torque from a 351CID package - stock bore and stroke, not stroked. Turns just about has high rpm as the mod motor. NASCAR banned the heads I am running after Ernie Elliot built a monster that Bill Elliot smashed all the Taladega records with and brought on the restrictor plate era. LS heads are actually pretty similar to evolved Cleveland heads Ford was racing in the 90's.

+kblackav8or Originally the Cleveland head back in the late 60's? Is a copied CHEVROLET DESIGN FROM the big block PORCUPINE HEADS CHEVROLET DESIGNED BACK IN 1963 FOR NASCAR CALLED THE 427 BIGBLOCK NO ONE EVER MENTIONES THAT FACT.,.....CHEVROLET DESIGN!!!!!!

+martin750hp I'm not sure Chevrolet deserves credit just for canting the valves, since that was also done in some Chrysler engines back into the 50s. Regardless, all the classic muscle car heads are out dated. Newer designs are much more efficient. Because they didn't have computers to design port geometries, and such.

Motor would make far more power with its valve timing and fuel injection, I see no point in carbing a Coyote.

manrightchea then why did the motor make more than 120 more HP With locked out cams and a carb...

+braydun I I knew i wasnt the only 1 to notice that. but really. wtf?

braydun I and you're posting comments with a Chinese made device 😂

I am your father ! And yet my device isn't a total piece of shit like that sorry excuse for a precision tool! 😂

Braydon s it ain't a pos but it all came from one place 😁😂😂

his computer isnt going 8000 rpm...

Expensive? Even racing carbs are like half the cost of an EFI system. You can pay for a lot of dyno or race track time for the difference. Besides, carbs are easy. Not as precise as EFI, but easy.

I can guarantee you this costs way more than off the shelf Coyote setups. Especially when you count the time involved. Endless frustration on an engine stand is all I see.

Berol2000 So you're saying custom racing set-ups cost more than off the shelf stuff. Quick, someone stop the presses. Why don't you price out an aftermarket carb and a compete fuel injection system for this motor and get back to me.

I'm not here to get in a pissing match with you. All I'm saying is you can make those power levels with a naturally aspirated coyote with the OEM fuel injection system, cams, a cobra jet intake, headers, a custom tune and race fuel. For cheaper than this, hell for cheaper than a FULL DAY OF DYNO TESTING (which is what they have in it). My original question wasn't posed to throw sand in their eyes. Or to throw sand in your eyes either and get your wound up. My question was more aimed at this must certainly be aimed at a very specific application. So what is that application. Hence my original WHY question. Make sense?

Berol2000 Maybe it's a pissing match you're getting wound up over for you, but it's not for me. All I'm saying is carbs are a cheaper then EFI, this should be obvious. If you have a long block, carb is cheaper then EFI and everything you need to run it by a wide margin. By half or more. And you don't need the expense of a dyno to tune it. That is just a convenience. An O2 sensor and a day at the drag strip combined with a little knowledge and experience on how carburetors work will get you dialed in. And you're posting a lot of claims over the price of parts with very little evidence as though its true.

590 non aspirated is much better than 650 turbo'd.

MUNOZEMK You spend literally double the money doing it this way... You spend half the money and make 200 more hp lol and 590 wheel is a little weak considering they 5.0 has 4 cams and 32 vavles lol

+MUNOZEMK non aspirated? I think you mean naturally aspirated.

+thomas H Its not WHP, so minus at least 30% for drivetrain loss. The newest coyote makes 435hp i think to? Lol so their making an extra honda civic motor more power and thats funny when you think of it :-P

+MJ Drive train loss on modern cars is about 15% or less on average today. However unless they are factoring in corrections that doesn't look like a SAE Net HP setup. If so it's more like the gross HP from the 60's, in which case you are looking at close to a 40% difference vs wheel HP. What you would really need to see is a a bone stock engine on the same setup to compare. Plus what the same mods done to the motor only swapping the intakes.

88TransAmGTA ok this is called stang TV for a reason dude or did you not see that in the lower right Conner on the show ?

DJ JONES agreed. Its easy enough for someone to say "grab an LS and have fun" like everyone and their mom does but it's also good to reach out and see if other motors can be interesting as well, even if that experiment fails it's better than just sticking with the first thing that gives you good results. Personally though I would've gone with the 6.2 SOHC Ford. Similar induction benefits with way more cubes to work with. Wish those 6.2s would start getting the attention they deserve, but what do you expect when you're put in a truck rather than a Mustang :-\ Be cool though if they made a new Mach 1 with the 6.2

i wouldn't want that it would make the car so nose heavy it might Handel like shit idk

DJ JONES I'm sorry but that's a myth. It might add 50 pounds to the front, not really a big deal. Especially with the extra torque youd have. I don't understand this sudden new thought that any tiny bit of iron in the motor will magically cement your steering rack in place haha. I'm all for going as light as possible but sacrificing a couple pounds to increase your displacement by 1.2 liters is a no brainer. I hate to bring up the LS example but ask all the guys who swapped their LS1s for LQ9 strokers which motor they prefer and why. The 6.2 is the motor you want in your street/strip car. I might get laughed at today for saying it but here in 2 or 3 years when everyone's gunning for them I'll be there shaking my head. Been there many times before lol

DJ JONES besides that, if they made a 6.2 specifically for a Mustang I'm sure they'd make a couple changes to it like Dodge does with their Hemis. And I'd be willing to bet one of those changes would be an aluminum block, which would negate the weight argument entirely

A modern engine? You mean 1930s pushrod technology of the "mighty" sbc and ls engines? Pushrods and a whole bunch of ugly is why the Camaro dies again in 2023.

***** When i say high rpm im talking going above 7000rpm, the raptor,s redline is 6000rpm lol only the boss 302 engine is capable of going 8500rpm without breaking a sweat... even the 5.8L in the gt500 can only go to 7000rpm using its over rev feature and it can only do it for a few seconds at a time lol long stroke engines cannot withstand high rpm's like short stroke engines do and thats a fact...

***** When I first replied to you, I thought you were talking about a LS3 6.2L, but now I see you were talking about a Ford SOHC 6.2L. Yea a 6.2 SOHC can rev past 7000RPM.. I once saw an article were Roush experimented with this engine, they stroked this engine to 7.0L and still revved up to 7000RPM producing 700HP and 800Hp on E85... I thought you were one of them GM Fanboys that are hating on the Coyote 5.0 lol they always say how superior the LS3 6.2L is over the coyote and when I tell them that the coyote can rev up to 8500RPM and that it makes the same hp with 1.2L of less displacement, they get all butthurt and shit lol lol

+1962Galaxie514ciMPFI thats the beauty of the 5.0L. Its down 1.2L and makes the Same Hp than the 6.2L. Long time ago BBK modded a 5.0 and a SS. Same mods for both cars and the 5.0L got more HP but the camaro made like 26 lb/ft more torque, obviously because of its extra displacement. An 6.2 LS Engine making 1000Hp n/a lol thats bull lol post a link so I can look at it lol

+1962Galaxie514ciMPFI you just typed it in your last comment you said I have a 6.2 spinning to 9K and "Several 6.2LS making 1000 hp n/a" lol thats why I asked for a link to see it with my own eyes because its basically impossible for a 6.2 LS engine to make 1000Hp n/a If the LS3 were to spin 6600RPM it will not make 505HP lol, ever seen a dyno chart of this engine. After the engine passes 6000rpm the HP curve dips. It actually looses power the higher it revs lol

+1962Galaxie514ciMPFI i never said LS motors couldn't make power past 6000rpm, I just said you were wrong when you said that the LS3 was making 430Hp at 6000hp and that if it were to spin up to 6600 rpm it will make 505HP lol Give me a link to a 6.2L LS3 making 1000hp n/a lol.. Its impossible lol the only way it would make 1000Hp n/a will be to stroke and bore this LS3 376CID to at least a 440CID but it will no longer be a 6.2L lol Hell yea that coyote 5.0L is a beast, liter per liter it makes more power than any LS engine guaranteed. 505hp with a cammed 6.2L not impressed lol Ford's new 5.2L Coyote based V8 is gonna make 500Hp right out of the box in the new SVT GT350.

+Michael caplinger You want throttle response......roots blower.

+Frank Castle 👍