THE STRONGEST SBC WE'VE EVER BUILT! 372 Screams at 8200RPM! (DYNO Numbers Shown) 

@16:58 you could tell how proud Uncle Bob was of that engine. You can tell that man takes pride in everything he does.

Billy, what you are seeing when you force the water temp to be much colder, like with what happens when running alcohol from gasoline, is the engine now relying on the oil to keep the parts cool. Yes. Alchol burns cooler in the chamber, but it still produces heat in the parts and if the parts can't transfer heat into the coolant as quickly and the coolant is being forced to stay cold, it can't do it's job to absorb the heat, so it relies on the oil to do it. Don't confuse running alcohol with NO heat. The combustion heat goes down a bit, but there is still friction and moving parts still get hot. Technically, it's not the coolants job to keep the oil temp cool. In reality, when the water IS able to absorb the heat, the parts run cooler and the oil doesn't have to make up for it, so it runs cooler. It still absorbs heat from the parts, just not as much. Hence why in a typical running engine, water temp rises faster than oil temp and usually takes oil temp much longer to rise, but ultimately oil will be slightly higher by about 10⁰-15⁰ in a controlled atmosphere. The more you hammer on it, the coolant stays the same but the oil temp rises considerably. Colder water loses it's ability do absorb heat as quickly, because by nature the colder you make it, the more heat it releases not absorbs, until it ultimately turns to a solid form, ice. The colder you make the water, the less efficient it is at absorbing heat, and in turn actually acts as a thermal barrier, or insulator, holding the heat in. When you force the "barrier" to be cold, everything within the barrier becomes hotter. Now the oil has to work harder, and for its efforts, becomes hotter. This has been the norm when switching to alcohol as fuel. Not a bad thing, since you need the hotter oil temps to burn off moisture and contaminants in the oil from the alcohol. You also want to run a specific thicker oil in alcohol engines to make up for that. I use Bradd Penn 20/50 race oil in these. FYI, colder running temps, colder intake charge, combined with hotter oil equals more power. What you were experiencing was pretty normal. Nothing wrong with hotter oil temps, to a certain degree. Definitely something i would be monitoring in a race engine. Many different things can cause hotter oil temps. What i listed was mainly because of the back to back change in fuel only and why it is happening. Hope this helps.

The S 10 is going to be on a whole new level now

It looks like this machinist knows what the hell he’s doing

She’s sounds pissed af!!!!!!!!! 🔥BOB knows how to build a motor!!!!!

It’s Like Fine Wine. With Time it only gets Better . Leaps and bounds from where it all Started. 🔥🔥🎥💪

I already left one comment, I just wanted to add that I have been watchin src for along time and have figured out with watchin Billy that when he smiles after buildin a motor, u can tell that it's gonna be a awesome build. That motor sounds like a monster at high rpms. That motor is nothin but a straight bullet.

Wow! The whiteboard in the dyno room sure brought back memories! How I adjusted mech cams in the early 80's. Intake closes adj exh, exh opens adj intake.

“AND STAY OUT!” I laughed so hard, I was crying. Bob is such a good man, and you can tell he enjoys you guys.

WOW ! just WOW. All the new upgrades sounding great. You are blessed to have all the knowledgeable people in your corner. Cant wait till spring !

posted that because they talk about the E 85 and the effects on the oil . love the channel

Unckle Bob Rocks

I couldn't have just shook Bob's hand and thanked him, I would have hugged that man! What a legend😎.

Shout out to uncle bob. He knows what's up and I garuntee he is a very intelligent man!

Bob's delight and joy on the 600 + number was awesome he is such a good humble man your very fortunate to have him in your corner take it slow do the job right first time , that'll be a stout little car when all completed .

Back in I970 I had a Plus Duster with a 318 cu , bored out 60over 202 heads Crane triple springs and retainers . My red line was 8000 rpm . Made it to the finals, my first time out .

That's a nastly lil high rev'in sbc! Would be a knarly bracket motor in a light car with 4.56 gears! Gonna be sweet to see a video of it back in the truck making a rip.

I pray once ur done both cars stay together for you guys for long time. Maybe keep count of ur passes and freshen them up for maintenance purposes. Just a thought. Excited also to see Nova. God Speed!!!

Definitely the best sounding SBC I have heard! Nice job men!

Yes!!! Excited to hear about the k-member and some of the other upgrades. The truck has made everything else your family has been able to do possible. I hope you decide to put k-member on Tommy's truck as well while it's down.

Billy 8200 man that one's going to be a good one good luck dude can't wait to see that little S10 better than ever.. everyone go racing get some fun going

Sounds Burly!! That should rip when you get it set up in the pickup. Good job!

While it's true that gasoline has a higher energy density (about 18,400 BTU/pound) than methanol (9,500 BTU/pound), if you can burn three times more methanol than gasoline per power stroke, you can make more power. An engine that flows 1,000 cfm of air (about 70 pounds worth) means that on gasoline, the engine will consume about 5.6 pounds of fuel based upon its 12.5:1 max power ratio, giving a total energy output of (5.6 pounds x 18,400 BTU) or 103,040 BTUs of energy. If we do the same calculation on methanol, we get 17.5 pounds of fuel burned, and (17.5 pounds x 9,500 BTU) or 166,250 BTUs of energy-that's a 60 percent greater energy output. - Jason Sands, Motor Trend 2015 More BTU = More Heat Also you would also see a similar effect for ethanol

New motor and upgrades for the truck, new refreshed motor in the falcon, getting the nova and that big block back together. Y'all going to be on kill when the spring hits.

I was saying and praying for 600 right off the bat Bob is the shit man that brother is amazing I know when I am ready to do my engine I want Bob to do it 💯💪🏽💪🏽 I can't wait to see this on the street and the track I'm Blown Away with amazed👍🏼👍🏼👍🏼💚🤟🏽🤟🏽

What awesome video to watch. So many smiles from everyone! Cannot wait to see this engine in the Nova!! Great job Billy

Its hard to get billy to smile and laugh even bob himself ...but bob came thur like a champ ....crazy build it was indeed....the s10 is going be different with all the upgrade too A fun winter is going to be...🙂👍🙏

As a certified yoobtoobe expert. The oil runs runs hotter due to higher psi pushing against the pistons creating more squeeze on the oil cushions of your bearing surfaces. This happens with e85 because it's slow burning and the moisture egression from the fuel. Could be something else but that's my hypothesis based purely on. Spectatulation

What a pain in the ass dyno compared to the Superflow 902 I use. Set the water control valve so you have 60 to 90 percent of the servo at your bottom number of the intended sweep, pick your ramp rate, and let it go.

Definitely a Detroit Diesel like he said. I think a two stroke would be harder to launch on the street because the all or nothing gap would shrink greatly IMHO. Interest engageded.

Tell him Tommy,let you do your job(filming is you and Allison, building and tuning is his.) LoL

The smiles are priceless. You have a great team Billy.

Super nice guys perfect platform for your turbo's the lower TQ should help with traction can't wait to see it all done it's gonna be a whole new truck

Man great work. That engine is screaming! Can't wait to see it in the S10 with the turbos hooked up. All I got to say, when you let go of that bottom hold on Billy because it's going to be a ride. And I think it's a good idea to upgrade the front suspension. especially now with the new setup. Hey really love all your content. I'm building a 92 S10 myself, watching your channel gives me lots of ideas.

Very happy to see you put time an money in the S 10. I'm hoping an praying that you have a great year up coming. Can't hardly wait to see the out come. Very proud to say that I know who you are. Keep up the great work one an all. Thanks for your time.

I believe the ring pack for gas is different than whats used for alky. So at that level e85 could have a higher blow by level what may cause oil temp to rise that high. ?? I would add however that alky is much better fuel. Its a lot more consistent and stable. Over all cyl.temps are lower.

Oil temperature is rising faster than coolant because of cooler cylinder charge and intake temperatures water in the block keeping upper engine cooler than lower where there is no water. So needed to lean out fuel more to make engine build temperature at same rate as the oil.

Bob is the man, what a great guy that loves what he does.

Can’t wait for next racing season to see this engine in action. Great job to all involved .

See a lot of haters here saying the HP numbers are low, YADA, YADA,YADA. For a 372 cube, low compression SBC (not sure of actual numbers, but can't be much above 9.0:1 for a boosted motor), 600HP is BEASTLY. There is plenty of power available with TT and 25# boost. I predict SEVERAL PB's, once Billy gets the new suspension and FI dialed in.

As always Billy I enjoyed your video I am so proud have you and what your motor got out of it 600 plus horsepower what a way to go can't wait to see what you have coming up next from the Old Man in Tampa Florida may God bless

When you get it back in the truck you need to take it back to that dyno you did a while back and see what it makes when you but boost on it that be a awesome video just like this one

Sitting here smiling for ya, that thing is a beast. S-10 gonna be rolling . Love your vids 😎

Congrats on the motor. So glad you’re putting more into the s10

I picked up 7HP by doing a 4-7 swap cam. Every little bit helps.😊

Damn...... This world needs more Uncle Bobs

I would love to know and learn from a man like Bob! I'm a machinist for a living. But I would love to own my own machine shop one day building race engines.

on that 417 front clip swap be sure you drill the factory control arm mount out to 1/2" it will save you a bit of time before you weld it in.

Now the Falcon is in trouble. That small block will get an LS. The ones before needed a little to much boost. Can't wait to see the truck when done.👏 And methanol burns at 5.0:1- 6.0:1 of air per 1lb of fuel. Methanol has 9,500 btu per pound. At 7,000 rpm it would have 35,055btu. Where gas is 14.7:1 of air per pound of fuel. And 18,400 btu per pound. But at 7,000 rpm you only get 27,600. So just my thought, heater rating are hotter the higher the btu is. Same with inside engine

Really informative. I have learned a few thing watching this. Well done gentlemen

wow, just wow. That is the stoutest small block I have ever seen. I am trying to imagine it on boost....wow. figure at 14psi it will be making roughly double that. no idea beyond that....if it can handle the boost you usually throw at it just a rough guess, lookin at around 2200 ? maybe 2800? that little truck is going to be 100 percent BEAST MODE this next season, cant wait to see it.

She just broke the tires loose!!

I agree with bob advance that cam so the power comes in sooner if you have ptv to do so

Best street content ever! If you would like to attend a NHRA National even hit me back.

Gunna be a great street/strip boosted Gen1 SBC! Great Job guys!!

Outstanding results can't wait to see the S-10 run again.

one bad motor Billy,let it eat!!!!!! 802/603 gang.

Get one of New HCR dominator engine harness. Those things look great

Fuel burns different some burns hot than other fuels that can effect oil temperature every time I haul feul for a living and if you look into how fuel burns you will understand that not all fuel burns the same and they act differently

I'm very glad to hear about the upgrades coming for the S10.

The oil heat comes from think about this. The top side of the motor is cooler but heat is still being generated. So that heats gotta go somewhere. And the oil is the place it goes.

Keen to see the s10 put the ass whoopin on the falcon. As much as im an ls guy haha

Congrats on building a mighty mouse small block! Gonna be radical out the back!

Anytime you rev a conventional sbc to 8200rpm’s and it stays together, it’s a good day.

New subscriber, can you have someone go into more detail on the lifter issue. I had a similar problem, but switched manufacturers of lifters. Trying to learn everyday. Is there any spec. Provided by the lifter manufacturers?

Hope you can keep the front tires on the ground, new bullet sounds great!!

BIG THANGS GONNA HAPPEN AT SRC!!!👍👍👍💪💪💪💪

You got Kyle videoing 😎

Killer small block. Nothing sounds better than a engine dyno

Been waiting on this for a while

That noise called music is hard on us old old men’s ears The sound of the engine is something else tho

Starting to sound like a NASCAR ENGINE when gets to screaming 😱

Great sounding engine !! to bad you couldn't build a spare to keep for when you need it !!! A+

just curious what are your cam specs? motor seems to have a short hp range but very explosive maybe something for nascar...

Bob is a super talented guy. 👏

I appreciate what he's after, but I personally think torque is more fun than HP on the street. I would have easily settled for 550 HP trying for a better powerband and more torque.

Great video Billy & Bob! It should run great! 🤩🤩

Billy you need to quit telling everybody how much horsepower you got known everything😊

Let's GO SRC

I am really excited to see the S10 make some pulls with the new engine!

Congrats to you and the crew!! Truly a badass build. Any chance you can tell me what city the Mega Cash Days will be in? I heard a rumor it might be in my backyard and was curious if you could verify?

WOW!!! 600 plus. Can't wait for boost

If Bod up dates the dyno with some new tech!!! He could tune them much better!!!

Bob gets into running the dyno

I just feel like some day une Bob is goin to be like Homer Simpson and grab Billy like Bart Simpson. As in Billy pushes buttons and it's hilarious... some day Billy... some day lol

I’ve never heard of alcohol making engine oil temps warmer. We would have to run oil coolers in our dirt cars when we were on gas but you didn’t have to run one on alcohol because the fuel took heat out of the motor.

Are you going to Box the Frame in to make stronger. Engine sounds good can't wait to see your Dads Engine run..

Camshaft timing will drastically change power and temperatures.

Better be ready to drive the wheels off it 😂👍

Man this is awesome!

Got yourself a 40psi nascar engine there lol

Small blocks down here in Texas making 700 to 1000 hp on pump gas 750 at 6100.

Wind it high and let it fly!!

Need that collab with Britney!

I just loved seeing Uncle Bob’s excitement on that last pull when it hit 607 hp at 8200 RPM, then the props he gave you when you suggested a different cam degree.

Damn LS engines are great and everything but nothing sounds as good as a big cam high compression old school SBC. Nice job Billy. That trucks going to fly.

I love someone like Bob .Its awesome watching a true master at his craft and listening to what he's saying and learning little things. You can tell he knows his stuff for sure. Dude is a pro.

Uncle Bob is priceless, one hell of a engine builder. The S-10 is gonna be even more of a beast than ever now, I can`t wait. Y`all did a outstanding job!!

Lovin Billy's dedication and determination to get better and go faster. You don't hand your stuff to some big company and say "Make me fast!" You learning everything to be complete and well rounded racer! Can't wait to see the S10 back rippin!!

Good to see Bob is still smiling. What a wonderful man. Thank you for helping my grandson do this right. God bless.