955 Horsepower NASCAR Engine for the Street! (w/ ProMotor Engines)

Our first engine build with the race engine specialists at Pro Motor Engines (pme-engines.com), and it's a good one! We are building a full-bore NASCAR race engine for the street! Dennis Borem and the guys at Pro Motor took a used NASCAR Chevrolet R07 Cup Race engine and turned it into a vicious street/strip motor pumping out 955 horsepower with less than 400 cubic inches. Just listen to this high-rpm beast sing on the dyno!
If you enjoyed this video, please check out our build of another great race motor based on NASCAR tech -- this time it's a Ford!: • Exotic American V8! 99...
Please check out the guys at Pro Motor -- pme-engines.com
▬▬▬▬▬▬▬▬▬▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬
0:00 - Pro Motor (PME) Engines
4:07 - Short block and Bryant Crankshaft
9:34 - Camshaft
11:39 - R07 Cylinder Heads
15:40 - Secrets of a NASCAR Valvetrain
19:26 - Tunnel Ram Induction
20:15 - Dyno Testing the Chevy R07

[@robertreavley7145]

Another great video!! Love this build. It was nice to see the differences in this race motor from a high power street build. Like the shimming of the rockers to save weight on the rocker! To me both engines are great. But for a descent street machine, it would have to be the slightly muted 750Hp. As low down power is better suited for the street! As you wouldn’t be able to hit 3rd gear without getting a ticket!! Gonna watch it again tomorrow incase I missed something. Well worth the wait bud!! Thanks!!

[@TheHorsepowerMonster]

thanks for the kind words, and thanks for watching!

[@robertreavley7145]

@@TheHorsepowerMonster your welcome bud!! Watching these videos is great! Comprehensively informative, and covering all areas of information about engine building tuning, and the selection of the right parts!!

[@zorlacrogue9032]

@@TheHorsepowerMonster besides money what credentials do you have to have to be able to buy

[@TheHorsepowerMonster]

@@Foxtrot1967 It depends on what state you live in.

[@TheHorsepowerMonster]

@@zorlacrogue9032 I think all you need is cash.

[@timewarpvideo6244]

Almost a thousand horsepower with less than 400 inches. Holy cow!

[@LetMrAL1]

AND alll natural on top of that!

[@SteveXNYC]

The emission will kill

[@justinballard7242]

And only 12:1 compression

[@danielthompson3849]

Considering cosworth. Make 1000hp. From 366 cubic inch n/a v12 With all emission controls in place. And last 100000miles on pump fuel But the Chevy is very impressive for pushrod American engine

[@johnsmith1474]

Not high performance, because it's intrinsically a poor design. And typically enough too many people don't have any knowledge of recent engine history. A 90 cubic inch BMW four cylinder racing engine made a reliable 1000hp and up to 1400 hp for qualifying, in the mid 1980s.

[@pookysdad4884]

That's the highest quality, most bulletproof, pushrod street engine I've ever seen. I'm drooling. Ima go check my lotto tickets, then just maybe I'll give 'em a call.

[@piercemccauley7079]

If ur moneys in the lotto ur never gonna call them

[@bryanphipps9131]

No joke, I guess there is people out there that will have 30-40K for an engine like that.

[@Ever443]

@@bryanphipps9131 30-40K? The block alone costs 12K (new). That's before any machine work, dry sump system and other items needed to make it run in the car. 60-70k will get you in the ballpark if you bought this pig new. So lottery winning will probably be needed

[@FranciscoHernandez-dq7rf]

70 k for the engine 💀 I’ll have to sell my scat and 2 other cars to afford that monter engine lol

[@madrew2003]

The differences between garage mechanic builds and serious professional builds is all in the tools and techniques used. It's pretty clear this outfit is at the top of the game!

[@jeffholmes2861]

PPPPPSSSSSSSSSSTTTTTTTTTT that's where they started in da garage way back in the day

[@Cradletothegrave67]

As a 30 professional machinist, engine builder and drag racer. I found this extremely interesting, thank you !!

[@johnfagan2954]

The thing I was soaking up all measurements , tolerances, and geometry had been reengineered to reduce friction & drag along with Harmonic enhancemrnt makes em stay together longer & sing louder.. Hats off to all the dedicated minds that make PME what it is AWESOME...

[@madhut3042]

Still push rod and 2 valves per pot. What an awesome engine!

[@matrox]

A none PR in a 397 inch engine would be a huge brick. Fords 5.0 non PR engine is physically bigger and heavier than Chevys 6.2 engine.

[@madhut3042]

@@matrox I'm still a cleveland fan

[@lorddoosworth8175]

@@matrox there are 4 litre na BMW engines that are bigger and heavier than a 7 litre Chevy LS7 too, while making much less peak power and having a much narrower powerband. Long live the pushrods :)

[@collegeparkwhiteboy]

​@@madhut3042 yes, D3 engines since the early 90's will make more power with a single carb. FACT

[@shawng7902]

This is insane. That big end rod spacing blew me away how much space there is. How skeletonized everything is, but that actual cyl wall thickness is awesome. Lifter bores are as big as some 4cyl lol. Id love to sit in a vehicle and rev one of these. I bet they spin up like a crotch rocket engine. He was spinning that whole short block with a finger on the breaker bar. Talk about extremely low drag.

[@boostjunkie2320]

I've always been obsessed with turbos. The sounds and the feel it's my personal preference but I can't help but to be blown away when I see 950hp all freaking motor!!!

[@chevyfan029]

This is the most in-depth info I’ve been able to find on the R07. Thanks so much for sharing

[@TheHorsepowerMonster]

Thanks!

[@RightTurnRandy]

This is like a dream come true. I'll need an engine to replace the 270 HP 350 in my Ricky Rudd Tide #10 car from the mid 90's. it's already street legal! I would love to build a street R07 for it!

[@kramnull8962]

Who needs turn signals when you drive the Tide Car.... Always loved it...

[@jarvislarson6864]

270horse? U mean 720?

[@SpeedDemon88X]

@@jarvislarson6864 most guys who own retired cup cars have regular small blocks in them. 270 sounds about right.

[@mikeraftis6332]

My 455 Buick made 428hp at 4200 rpm and 565 ft lbs at 2800. All with a crower 210/214 @ .050 cam. Now that is a fun street sleeper. Idle is near stock and runs 11.70s.

[@ChicagoRob2]

Agree 100%. My 455 ran a custom 232/242, 112LSA .575 lift cam and it had a barely noticeable chop. 570 ft lbs, 442 hp. It was a real stump puller.

[@patrickisswayze3446]

That actually sounds like a lot more fun than what's in the video. 565 at 2800 that's some push lol. I can't imagine tunnel ram and a cam that starts at 5600 being fun in street traffic.

[@theariesexperiment4642]

That engine sounds absolutely ridiculous. 8800rpm!!!! That sounds so beautiful.

[@iceman45ification1]

Holy crap that thing's a beast. 😳 I always wondered why NASCAR style engines couldn't be found on the street. It's great to see they're finally making their way. More choices in engines is always a good thing. Great video sir!! 👌

[@TheHorsepowerMonster]

Thanks a lot! And thanks for watching

[@NBSV1]

A lot of the problem is that everything is different than standard engines. Such as they don’t have places for engine mounts because in the race cars they use engine plates. It also gets into race car stuff so the price tends to be high. With plentiful cheap turbo kits a lot of people just go the easy way and throw some turbos at a more standard engine.

[@blazer6248]

People have been building these outside of NASCAR for a decade or more.

[@chadsimmons6347]

Well you couldnt get the damn car out of 2nd gear with a 1000hp engine on the freeway, whats the point of having it?

[@mrh.8724]

@@chadsimmons6347 most retarded comment I've read in a while, explain how having 1000hp governs you being stuck in second

[@deanstevenson6527]

This is one of the best Aspirations Index ( AI ) for a naturally aspirated engine ever. 397 times the 8300 rpm power peak, divided by gross peak hp is 3450. The Australian V8 Supercar 305 engines, its 3630. I cant recall exactly the test, but I know for sure one of Richard Holdeners best 5.3 liter destroker LS was 3880, it was some thing like 550 hp at 7000 rpm or 630 hp at 8000 rpm from 305 cubes. A flat head Ford was 221 × 3600/ 85, or 9360. As the AI number drops, you are extracting the most hp from the least rpm. That modified R07 IS a Dynomo!

[@arianawilliams1592]

Hey

[@de4dlyzee]

@@arianawilliams1592 hey

[@arianawilliams1592]

@@de4dlyzee Hi,how you doing

[@deanstevenson6527]

@TRUTH CENSORED Personal opinion only, one which is worth nothing, (but since you asked....here it is) Give it away to the irreligious, non political and Un monied , and have no strings attached when you give it. And watch out for people with really tidy hair and natty dress. Over compensation is a means of raiding your pay packet. Good fortune with your quest.

[@Sneakdisscommentbelow]

I'd be very happy to have the street provision of this motor. 750 hp with around 550 ft lbs of torque pulling to maybe 8k rpm would be the best N/A option available.

[@PropsandWings]

A food for thought in case no one else figured it out. By moving the camshaft up further, it allows for a reduction in pushrod length and a much more narrow block. Less length means less flex and less flex means more RPM to turn without fear of bending a pushrod. The extra head studs also distort the cylinder walls and change it from a circle to more of an oval shape when it's torqued down. This change can have a major difference in ring sealing and power making plus a reduction in blowby. It's the small things you chase that make a big difference and wether you're 1st or last.

[@davidmotoman4956]

You can not beat the sound of a Nascar engine it full noise. Amazing HP figures. Love watching your section by section builds.

[@saltydog7988]

Imma go with a fuel motor…nitro all day every day

[@av8r_art]

Yes, you can. Top fuel nitro methane 11,000 horsepower makes it sound like a kitty cat.

[@lindseychaney3987]

Now that’s an engine that dreams are made of. Wish my drag car had a 1000 up small block in it. Us poor boys have to stay with big blocks to get within 100 hp of that!!!

[@wellzy9819]

@Louie Dega still you dont have any video's on your channel to prove that. So your comment is worthless

[@jeffreyriggs1911]

I just dropped a big block in my truck butit inst for street but for mud. 8.1L from an 02 silverado. getting all bigs worked out, then rebuilding next year...not aiming for much... just 500hp... but the torque!!!!

[@onefastslimjim]

@Louie Dega Well how about you spend less time mocking others of their downfalls and put more energy into helping others achieve what you have achieved to move the car world as a whole forward. It's people like you that make the car community toxic for no reason, bonehead.

[@kenshinhimura9387]

@Louie Dega You're a toxic asshole. That's all we know for a fact.

[@klausvonschmit4722]

Add another kit my friend!

[@carlmasnec]

The more fast the more CASH! baby!

[@rbmwiv]

Just amazing how much the cup motors have evolved since I started in 1994 not to mention all the other stuff. I remember the first job I had to do was cut all the cross bars in the roof out because had to install flaps in all the cars. And learned a lesson about rinsing the shower out after doing that because the next morning it was covered in rust, took me a week to get it clean.

[@TheHorsepowerMonster]

Very cool. What team did you work for?

[@rbmwiv]

@@TheHorsepowerMonster Jimmy Means #52.

[@mchristr]

This could be your best engine build video to date. Would love to see this engine with a little less compression/cam and a Holley Hi-Ram-style fuel injection. Keep the videos coming.

[@Broncofivepointslow]

Your channel is so awesome. Perfect lunch break material for an engine nerd like myself. Cant wait for more content.

[@TheHorsepowerMonster]

Thanks! And glad you like it. Thanks for watching!

[@justingriffith2991]

@@TheHorsepowerMonster Do you. Hv

[@Flyingwalrus42]

I’m lucky I was in my room when I started this video, my mouth just dropped open listening to that engine start up and a fly would have flown in.

[@davidalvarez5929]

Love a high reving V8, Dio

[@davidtappe5337]

This video trips me out. The technology here is amazing. Loved the Dyno pulls.

[@SC457A]

Pretty dang cool seeing such details on a Nascar style engine.

[@jimmy_olds]

The current NASCAR engines before they were neutered were so dang impressive, they’d sing all the way to 9500+ RPM’s all day long. I’d love to have one sitting my family room just to stare at. Lol Awesome video! I’ll be sad when these motors are obsolete but hell, might give us regular folk the opportunity to get our hands on one. Probably not... but it’s a good thought lol

[@TheHorsepowerMonster]

Glad you liked the video. Thanks for watching!

[@3dwezzy740]

put it in ur daily driver🎉

[@jimmy_olds]

@@3dwezzy740 hell yeah! I’m surprised more don’t make it to the street

[@tomlloyd6923]

​

[@tomlloyd6923]

❤❤

[@gregboggs4721]

I worked on these when I worked at Hendrick Mortorsports. I was doing cylinder heads for the SB2 and the RO7 up until 2021. Also these heads here are some of the first, they have changed drastically now.

[@King1614]

Please elaborate

[@flakey7832]

It's the first time ever I've heard about rod bearing speed and camshaft twist, that's just insane amounts of details

[@ldnwholesale8552]

Having watched the clip on the Ford Nascar engine very different. 2.650 the same as a Clevo which were always considered to be too high in crank speed. People in the past modded them down to Chev size. 2.498. Crankshaft and piston speed have always been an issue. And camshaft twist happens with very high rpm engines. 410 Sprinters have a problem driving everything off the front and rear of the cam and break cams. And they 'only' turn 8500!

[@WALKINGTHADOG]

I got one I’m building now for a C10 project. These are some wicked engines.

[@pablojanski.2559]

I would go for a version that uses 9.5:1 and add a procharger for an easy 1500-2000 hp

[@pepper77449]

Definitely the 750 hp version. These are the best of the best I have ever seen. Good work guys. 👍

[@yeahitskimmel]

Having to torque those extra fasteners upside down in the valley is a tiny pain compared to fixing half the things on a modern daily driver. Amazing voiceover work!! Subscribed

[@TheHorsepowerMonster]

Thanks a lot!

[@Justin-bz1dp]

@@TheHorsepowerMonster h

[@SirCoolJerk1030]

I really appreciate this look inside these engines, wow a piston guided rod. Thanks .

[@hugoortiz05]

More high level stuff like this please!!!!!

[@freethinkingamerican80]

Badass motor. You should get ahold of Dugans Racing Engines in Riverside, CA. They are building 555" motors that are 1100hp designed to go 1000 miles offroad in Trophy Trucks. Similar builders are Kroyer Racing Engines in Las Vegas, Nevada.

[@stevedriver1476]

notice the builders,, NO TATTOO

[@kennethalbert4653]

This is the video I have wanted to see for the 20 Years ! Thank you ! No engine I ever build will be cool enough again.

[@xozindustries7451]

Throw a 4” stroke crank in that with 10.5 to 1 compression and a tighter cam overlap with lower lift and that would make a killer street engine

[@mchristr]

A 7+ liter R07 for the street would be the ticket. The deck is pretty short (about 9 inches) so the rods would have to be shorter and the ring package would be pushed way up on the piston. But it should be doable as an NA engine.

[@Edwar3505]

boring...put this motor in a lightweight car with a huge gear and a liberty 5 speed and have extreme fun

[@xozindustries7451]

@@Edwar3505 a blower might be good ticket for low end torque

[@Edwar3505]

@@xozindustries7451 Who needs torque?!? put a huge gear in it and rev it to 9500

[@jacksonboone8396]

The way he spun that crank....LOW tension rings son. YES

[@StevieVman1]

Here I am again. Still in awe 😮

[@mikes9939]

I love all the mechanical goodness in all the videos that are on this site. This is the best spot to get great coverage on builds of serious engines by real pros. Thanks very much for your explanations and narrations.

[@TheHorsepowerMonster]

Hey thanks! It's always nice to hear some positive feedback. And thanks for watching!

[@mikes9939]

@@TheHorsepowerMonster I think I can speak for the majority of us when I say that your site truly has some of the very best no-nonsense engine building videos available anywhere. I have an old friend named Jon Kasse, you may have heard of him, that I have know since the 1980's and some other great folks that I have learned a great deal from and one thing in common is a certain knack of solving problems and good engineering principles. There is a group of us that relish this stuff and we can't get enough of it. I am always happy when you bring another video online no matter what the content is. The recent ones on the Jeep inline 6 were great from the problem solving point of view and even though it wasn't the biggest, most powerful engine every seen, it still satisfied the desire to see good talented builders doing their thing. Please keep them coming, we really enjoy them. I especially like the way you narrate them, covering everything with plenty of detail.

[@saleemwaheed9956]

Only understood about 25% of the video, but it was so cool. I love race engines.

[@user-yk6um2ig2l]

...first EVER engine build I've seen that was done properly, very properly. BRAVO PEACE GRD

[@MrCarnutbill67]

Did anybody else notice how easily he slid those pistons in? Noice!

[@I_like_turtles_67]

Yeah. The rings were pefect. It spun like butter.

[@emperorpawpateen.9992]

They put standard pistons in a .050 over bore. Lol

[@mchristr]

Good observation Modern engines generally have very low tension rings.

[@jeffoglesby1327]

I noticed at one point when turning the engine block over on the stand that the weight of the big ratchet on the crank rotated the crank as the block was turning over after they had shown piston installation

[@oceanhome2023]

Special coatings

[@MRR-qv3bw]

That cam is wild looking! Awesome vid man and I look forward to seeing how these motors like boost!

[@3caisons]

Going after the bigger build gonna put the same motor with dominators in my 1965 Chevy 2 hope we get 1000 hp🤑Tommy Fredericksburg Virginia

[@richb4099]

The dyno operator is a friend and we worked together and drag raced together going back to the 1970's. Many drag racing engine guys ended up in NASCAR country

[@Bryanscott88]

Man these are serious numbers out of a N/A SBC. Holy freekin crap!! Props to you guys!! This is absolutely insane!!

[@olderthanyoucali8512]

What a great series of programs, one exciting and varied engine build after another! You knocked it out of the ballpark on every one!

[@TheHorsepowerMonster]

Thanks a lot!

[@boharris8179]

I know this is an old video but I listen to it frequently. Man I love hearing a high strung small block

[@grundyb]

Wow! That engine sounds so good. No valve noise and crystal smooth.

[@Hitman-ds1ei]

One of the best engine reviews I've seen yet, awsome engine too, even if it only scratches the surface of the tech, engineering and science in these engines

[@jamesf2656]

Loved this build. So many interesting little features.

[@jamesmills3176]

Ya got to love a NASCAR engine. Screaming those RPM’s for so long . Damn !! That is bad ass

[@brianeffler7835]

10 to 1 pump gas motor would be a definite. 750 horsepower would be a great engine for street use.

[@pookysdad4884]

"Used" parts or not (except for the crank), that's gotta be a $50k motor.

[@c.albrow9161]

says it's $30k on Google.

[@pookysdad4884]

@@c.albrow9161 That actually sounds reasonable, given the exotic parts, and machining involved.

[@freethinkingamerican80]

@@c.albrow9161 that's too cheap

[@c.albrow9161]

@@freethinkingamerican80 tell that to Google.

[@skoogle065]

30k is no slouch either

[@rocklynroll2311]

100% badass show..... very impressed with the quality and precision of these builds.... real treat seeing this race engine stuff!!!

[@TheHorsepowerMonster]

Thanks a lot!

[@ronaldrussell5481]

Mind blowing detail on this engine! Impressed by the simple cog belt crank to cam drive and the valve train in general.

[@SJR_Media_Group]

Amazing build.... can run this engine hard all day long and not worry about busting anything. Bring it home, change oil and plugs... ready to rock and roll all over again.

[@sharkskinboy]

I literally had difficulty breathing watching this video. This engine is true artistry.

[@johnbecay6887]

very cool. love the inside look at big time competition engines.

[@boosteddartls2833]

Best part about this post was the fact NASCAR engine builder PME was planning to offer actual engine components and build anyone, a crate engine basically with the knowledge and tech of a nascar engine that’s truly engineered to withstand 20k miles durability testing, not single races. Yet some of these pond jumpers want to compare the thousands of engines built over decades to some exotic one off, no average person can afford super car, that requires $100k services every 5k miles, no thanks! My only fear is the oil belt here! Awesome stuff from Pro Motor, American Muscle like No other.

[@craigbaxter2873]

I really enjoy the way the gentleman narrates the entire build. It's easy to understand and well presented making the entire video interesting and informative. The photography is excellent. Thank you

[@TheHorsepowerMonster]

Hey thanks! And thanks for watching!

[@ThunderAppeal]

Somewhere a tree hugger is apoplectic. The irony is that this engine probably runs cleaner and more efficient than most factory engines.

[@madrew2003]

No way with that much valve overlap. It's a gross polluter by any measure, except maybe at or over peak torque. It's efficient for sure in it's operating range, but don't confuse bsfc with clean tailpipe emissions. NOT the same thing.

[@PistonAvatarGuy]

No catalytic converter, carburetor, huge cam. leaded fuel.... no, buddy, that thing pollutes like a Chinese factory.

[@MrLadysman333]

@@PistonAvatarGuy who cares fire up them engines

[@ThunderAppeal]

@@MrLadysman333 Seriously. The term 'gross polluter' has taken on a completely exaggerated definition today. A whole fleet of these things wouldnt make a dent in any environment.

[@tropicalpalmtree]

I'd love to get one of these engines brought to the UK. Incredible sound

[@thangknowa3288]

Oh yes, YES!! Love them small blocks. Thanks for posting.

[@personllyinterested]

Some years ago, a guy had a Bush Grand National engine (next class below NASCAR) in an old rotted out Nova with a 5.88 gear, running pump gas and slicks, on the street! Ended up loosing it due to drag racing. Didn't want to shut off and had some amount of spark knock, but that ratty old Nova would straight get down! Wasn't around for long but built up an iron clad reputation to us gear heads as not to be messed with, though we still tried! Great and informative video, my hats off to ya, sir! Thank you!

[@pavlejuranovic3043]

Honestly after watching an awesome video about this legendary engine I think the R07 is my favorite engine. I mean a naturally aspirated,carbed,small block Chevy making 955HP is unbeatable to me (except maybe a cammed and stroked out LS3 or LS7). Honestly I would choose this engine over anything else everytime except for LS's. Awesome video my man.

[@TheHorsepowerMonster]

Thanks! And thanks for watching!

[@ChicagoRob2]

This engine will urinate all over any LS. They aren’t even in the same universe.

[@kz6fittycent]

That thing is bonkers. I want it.

[@colinrash56]

Beautiful piece of mechanical art.. Almost a 1000hp art, amazing! Excellent informative video, great work

[@reggiereed1761]

Comment: Holy smokes... Version: Street for my V-8 swapped S-10. Now I gotta start looking into some suspension stuff and a couple of chassis mods...maybe a cage... upper and lower A- arms...springs... shocks...rear- end.... Look what y'all went and done, now I gotta start modifying the whole thing just for a stinking motor! But damn it'll be worth it!!! Just Badass....

[@basketballcory2]

I'm gonna need the full send version asap

[@JayAR_YT]

send me your motor now then

[@basketballcory2]

@@JayAR_YT the motor I have runs great. 560hp na small block with 23° iron heads

[@JayAR_YT]

@@basketballcory2 Im running a 6.0 LQ9 in my 2000 catfish camaro. 430-60whp to a 3 speed TH350 with 3.42s

[@basketballcory2]

@@JayAR_YT nice

[@supersnake6450]

I'm running a catless downpipe on my 2008 gti

[@FortyTwoAnswerToEverything]

Excellent narration. Thank you for such an awesome video!

[@TheHorsepowerMonster]

Hey thanks! It's always great to get positive feedback. And thanks for watching!

[@dennisrobinson8008]

True.... Very good narration and awesome build.

[@chrish4483]

My brain is screaming out for rowdy 750hp autocross/road race/road driver musclecar build..Amazing....

[@dallascowboys1683]

Yeah and it has a SBF distributor!

[@SS454LS6]

This was an excellent episode. I love race car technology.

[@TheHorsepowerMonster]

Thanks!

[@ebbonemint]

I’m just here to learn some old school tricks from old school pros, This thing is a beast.

[@thomassmith6969]

Beautiful! Can’t wait to get one! Building a road race car - street car. Want something that revs!!!

[@brentheilman8910]

Those pistons slid into the cylinders with ease. Amazing. I want one. 👍👍👍

[@TheEZGZ]

Interesting that the inside of that single carb manifold was a rather ruff casting to help emulsify the incoming fuel. I wonder what would happen with EFI. David Vizard talks a lot about the Beehive valve springs. That was another surprise. Great Show and editing!!!

[@TheHorsepowerMonster]

Thanks! And thanks for watching

[@life_of_riley88]

Rough surface finish has been proven to flow better in these applications, with some porting gurus actually dimpling the surface on purpose.

[@shanerorko8076]

Dimpling does nothing but detach the air. Smooth surfaces are bad as the air sticks to them.

[@aeroflopper]

@@shanerorko8076 so dimpling is good then as the air flows better and does not drag on the runners/intake path

[@life_of_riley88]

@@aeroflopper That is correct. It also aids in keeping the fuel droplets from puddling in corners or low pressure areas.

[@justinmann3617]

Great video! So much knowledge in 1 motor. I bet there's 150+ years in experience in each one of these motors. That's amazing! Plus it would be nice to smoke some big blocks in the mud pit with a "little" small block 😉

[@joebrocato2365]

This must have been 2years ago. The masks never worked then or now. Great video tho.

[@richardlong6097]

I appreciate them being so considerate and wearing a mask around the engine. Cup motors getting the Rona is a top fear among many of us.

[@yogibear9607]

To me, it looks like they incorporated some of the Japanese engineering that used to build the in-line, four-cylinder crotch rocket engines very precise, limited friction, durability, and the highest quality materials, amazing! The durability is unbelievable.

[@matthedges4108]

I wonder how much the 750hp setup would cost. I love the NASCAR technology being put into it! Just makes it seem so much more reliable

[@ChicagoRob2]

Probably more than you can afford.

[@69JANKS]

That’s one Badass motor right there 💪🏼🏁

[@dennisschmitter7310]

I just discovered this channel. Really well done!! Thank you for going so in depth backed up by footage. Thank you so much!!

[@fartsare2023]

Brilliant. They leave no stones unturned. Holy hell.

[@greenmirror5555]

Great Video! Love the R07!

[@TheHorsepowerMonster]

Thanks!

[@captjim007]

Too bad NASCAR changed from racing cars that were actually a car anyone could buy at a dealership then modifying them for racing.

[@mr.nobody68]

There's nothing stock about a stock car

[@bman6198]

That's just the evolution of technology and competition in motorsport. I think it's good as long as manufacturers and teams are invested in the competition. There are GT series that homogulate street legal cars which I think fills that niche.

[@jeanettewest]

@@bman6198 Horsepoop. Late nights every once in a while old racing shows can be found. I saw one a few months ago, the Talladega 500 from 1974 the fast cars were coming out of the curves at 200 and in the straights could do near 240. If you changed the tires, added windshield wipers and put mufflers on the cars you could have run it on the street. Today's things that run in circles are creations of a corporation, which due to cost, you only have a very few other corporations with the money to field one of those things. Back in the day, if your rig was fast enough to qualify, you were in the field. The things that run in circles today are far slower than the past, and there is no real competition, except in the pits for time-savings. Pretty much a race is won by luck and how quick your pit crew is, not by how well a car is built.

[@bman6198]

@@jeanettewest Interesting, I'll have to check out that footage. I don't know a ton about stock cars(Mostly watch Indy, F1, WEC and IMSA).

[@justinreel5546]

I may not have been around when they raced real cars. But these aren’t real cars.

[@chrisbirth9087]

Amazing, love the detail. Keep it up!!!

[@xaiyab6892]

Great video. Thanks for sharing.

[@christopherhawkins4521]

First video I've seen on this channel. Fantastic. I love the detail. Showing the accuracy and precision the builders created should increase the interest in the sport. Using real science and the metal shaping skills to make your ideas come alive has got to be fulfilling. It sure is impressive.

[@TheHorsepowerMonster]

Thank you very much!

[@doubleaaaron]

This is awesome! Why cant everything be this good? 🙂

[@pookysdad4884]

$$$$$$$$$$$$.

[@CraigConnors]

The engine sounds so smooth in all RPM's on the Dino, with that cam I can understand why, a complete work of art.

[@wysetech2000]

Craig Connors Dyno!

[@matrox]

If its a 397ci....they should just call it a 396 for heritage reasons. They did it for the 402 in 1970. Who here agrees with 396?😁👍

[@anthonyblacker8471]

That engine probably cost more than my house! wow.

[@willieransom8948]

F1 are testing now think Electric cars coming to NASCAR ?? Let" s put engines on sale. say it"s not so.

[@62-62]

Such and awesome episode!

[@TheHorsepowerMonster]

Thanks! I'm really enjoying the support from the gearhead community on KZbin and hope to be bringing a lot more cool engine builds. Thanks for watching!

[@darylmorse]

Thanks for sharing this video. Really impressive engine!

[@anthonyrodriguez-fo4lz]

Impressive, I Love the dual carb set up.