Building a Big Block Ripper to Go Mud Bogging! (Plus, Do Vacuum Pumps Make Horsepower?)

Here's the challenge: How much naturally aspirated power can you make for twenty grand? Mud Bogging is about as All-American as it gets when it comes to motorsports. We travelled to the shops of Motorsports Unlimited to meet up with owner Lance Stillwell as he builds a 582 cubic inch big block for a Mud Bog racer. Best of all, this engine makes well over 1,000 horsepower for less than twenty grand!
Engine Builder: Motorsports Unlimited -- motorsportsunl...
Most of the parts in this build were sourced through PBM Performance Products -- www.pbm-erson.com/
We're constantly uploading great new videos. Please subscribe so you won't miss out!
www.youtube.com...
MORE INTERNET GOODNESS:
Website: www.horsepowerm...
Facebook: / horsepowermonster
Instagram: / horsepowermonster

[@divinemaniac7983]

I work with Tyler, he's an awesome guy! Can't wait to see this thing bog!!!

[@jayvog1601]

Now that is a screaming big block. Amazing!

[@robertwetherington3372]

Great build,very informative & to the point without being drawn out.

[@TheHorsepowerMonster]

Thanks very much! And thanks for watching!

[@thesquirrelchroniclesakare7808]

That engine would be great for a drag race application !

[@motorsports312]

A small cam change, and yes it would.

[@calebgann5064]

Motorsports Unlimited Race Engines yea a nitrous cam and filed rings

[@davelowets]

Those Moroso Billet oil pumps are a serious piece. They crank out a SHIT TON of oil... On a dyno, the Moroso pump will show that it takes 6-8 more horsepower to drive than a standard Melling High-Volume pump does, but it will have more P.S.I. through the entire sweep, and much more oil flow(g.p.h.). It's a stout piece of hardware.

[@davidmunroeprecisionengine6121]

Great build great video

[@TheHorsepowerMonster]

Thanks!

[@Brock_Landers]

So funny story, when I was younger I went to Bubba's Mud Ranch (owned by Bubba the Love Sponge) in Auburndale, FL and they had a side by side 1/4 mile drag strip made of mud that was roughly 3-4' deep. There were some KILLER trucks there that night. The dude that we came with had a OBS Ford on 44" TSL Thornbirds with a fully built 460 with a centrifugal supercharger and what kind of vehicle do you think won the whole night overall? A damn stock 4 cylinder manual Jeep Wrangler...what in the actual fu&%?

[@augustwest6637]

You definitely got a new sub here. You should be teaching school very informative

[@TheHorsepowerMonster]

Hey, thanks a lot! And thanks for watching

[@davelowets]

11:45 These all need to be honed to fit. They are small out of the box to compensate for differences in cranks from various manufacturers. By brother crammed one on right out of the box, and we had a HELL of a time getting it back off. A brake wheel cylinder hone will work to do it at home, but it's kind of a bitch because the stones like to get caught in the keyway slot. Take your time, and go easy with it.

[@HorsepowerHeadquarters454]

Thank you thank you thank you!!! Just bagged my sub to👍👍 been trying to say it for a while, but you did it for me with not even the same cubes either like 50 less. lol

[@dadfood3504]

digging that motor plate for mounting up accessories

[@aeroflopper]

high compression, my favourite recipe

[@scottmiller3025]

Wish my bank account had 20k, I'd have a house..lol but in all seriousness a very cool video!

[@gunsandhorsepower]

What's a good engine to put in a 2nd gen 1500 4x4 building a mud bog truck out of a 01 single cab short bed thought about a 6.0 lq9 ls with a cam headers etc

[@mikemoore5929]

Are these PBM parts US made

[@michaelrodgers6559]

Besides rotating assembly balancing, RPM capability is dictated more by the top end of an engine. Holding back on stroke doesn't mean much in and of itself.

[@matthewguilford9340]

Don't get me wrong I love a big hp number but is a big torque number a good thing

[@TheHorsepowerMonster]

Yes, you definitely want a ton of torque. But it isn't as critical as high rpm power. The thing about mud bogging is the engine will likely never see anything in the lower rpm range in the pit. The driver will mostly likely run the engine up to around 6000 rpm or so and drop the clutch. Then he'll make his run with the pedal mashed to the floor. Since there is no traction, the engine will still be in high rpm range when the truck gets stuck with the wheels still spinning. Thanks for watching.

[@KoenigsTiger957]

Which lube was applied to the cam lobes?

[@motorsports312]

We use Joe Gibbs assembly grease on the lobes, and redline assembly lube on the journals.

[@rtkl13]

Good catch I wondered the same

[@kraigchinn747]

20,000$ for 1000 hp?

[@ryannelson2211]

Takes dollars to play

[@trapsosa8318]

Could go nitrous or turbos for alot cheaper🙄

[@ryannelson2211]

@@trapsosa8318 it said the rules required naturally aspirated engines only

[@fellowship_of_the_goat]

doing 1khp cheap and doing it reliably are 2 very different things

[@ryannelson2211]

@@fellowship_of_the_goat nailed it

[@crautoguy8384]

Use the bracket race 10 second class too fast too expensive Moved up to 12 way more fun we used to get Good Wrench 350 stock 1700 bucks from the dealership Brand new 4 in bore nothing oversize easy to order parts for Rip top and off put a big nasty fucking Camshaft and 12..1 PistonsWith 40000 th Gap from summit cheap edelbrock head Can't member Which cheap junk model number the heads were 2 0 2 1 60 valve About a 200 CC Intake 750 Holley double pumper in a 200 shot on that thing Get about 50 passes when it blew up with salvage what was left of our parts by another 17 hunderd dollar long block from GM You can do with a big block cheap probably kill it but you could build 5 or 6 of those and still not torch 20000 That being said at the end of a season had a trash can full of powdered metal rods that we turned into powder Add a whole bunch scrap of 350 cast iron blocks

[@michaelf.2449]

I think I would've just done a boosted 6.0 and had 2 engines instead of just one

[@351clevelandmodifiedmotor4]

the distributor is at the back, that means its a pile of junk

[@Nsel79]

Terrible haute is what the locals call it

[@justinballard7242]

6:08 rod bolts eh

[@TheHorsepowerMonster]

Oops. Slip of the tounge. Good catch!

[@justinballard7242]

@@TheHorsepowerMonster I know just giving you a hard time

[@lte008]

Should have screwed the pump shut and let it pull all the vacuum it can. The old wives tail about pulling oil off the skirts and pins, well is just that, false........

[@Arroyo69able]

What's the point of making a build video if you're going to keep cam specs secret !?

[@keysautorepair6038]

Pbm junk won't last long bet.

[@kevinshiley9061]

I see so many with their hand on the ratchet end of the torque wrench. That's improper and in some industries would get you reprimanded or fired!!

[@RyanMcIntyre]

You have to be able to hold it perpendicular to the axis of measurement, anyone not holding the head is getting inconsistent readings and I'd be happy to argue this point with any instructor disagreeing with it, and ESPECIALLY happy to take someone to court over the loss of employment for something so ridiculous. You hired me for my skills, not how I hold a torque wrench, now get out of my assembly area.

[@kevinshiley9061]

@@RyanMcIntyre just telling you what I was taught in QC of nuclear parts inspection. You go ahead and torque up your engine bolts!!

[@RyanMcIntyre]

@@kevinshiley9061 lol! I don't think I know of any mechanic or shop being held to nuclear qc standards, but thanks

[@circlejerk6861]

all this and no crank trigger! wtf

[@H1GHdrogen]

The synergy between the secret cam and conventional heads must be perfectly optimized for this low cost combustion system to make 1050hp/830tq @ 582ci. Absolutely amazing engine build!

[@andrewrcmadwilkinson6999]

WATCHING THIS MAN ASSEMBLE THIS ENGINE IS LIKE WATCHING A CHEF CREATE A FINE MEAL

[@TheSteve1175]

Or a watch maker 👍

[@standonit2003]

Even dumb ole me was able to understand this video build! No leafy greens, just meat and taters! Great build! Wonder what they could do with a small block?

[@RyanMcIntyre]

Same exact thing I bet, just less displacement.

[@phild12pd]

There’s no replacement for displacement

[@hell-sol5240]

Sure there is

[@rectly]

Phil D12 ye 4 turbos and a super charged or a twincharged car

[@walkerforsyth6221]

@@rectly sounds like alot of heat and a big ka-BOOM at the end.

[@walkerforsyth6221]

@@hell-sol5240 tell me what would then? tell me what will do it with less heat soak than a naturally asparated big block..

[@hell-sol5240]

@@walkerforsyth6221 its called talent all about the driver.

[@skylerb7103]

What an absolutely cool build! This channel proves time and time again to bring awesome content and thorough knowledge in the engine building world! Good job guys!

[@TheHorsepowerMonster]

Thanks for the kind words! And thanks for watching!

[@raptor660jarhead]

I would say the same until he said in the beginning that there are mud bloggers running 8k hp

[@TheHorsepowerMonster]

@@raptor660jarhead Yeah, I think that's my Southern getting in the way. I said running A thousand horsepower. Probably came out sounding like running eight thousand. Sorry if I caused any confusion.

[@Hammerback0]

@@TheHorsepowerMonster oh!! I heard 8 thousand! I said out loud "WTF?? If he has 1000 and his competitors have 8000 he is wasting his time"

[@BlueWidow2010]

have you done truck pulling engines. I have one that needs a little more power and a few more rpms...

[@motorsports312]

We sure do.

[@marxkartredge]

Now slap a locomotive supercharger on it and call it a day. But fr, that engines screamin for boost.

[@justinnewhouse59]

No way! That engine isn’t set up right for boost. 1. Way too much compression. 2. The cam isn’t designed for boost it spec for a n/a setup. 3. I might be wrong but I’m pretty sure those rods wouldn’t last long under boost. I’m no engine builder just a dumb old mud racer that has never had a quality engine like this just some old junkyard stuff thrown together 😉

[@standonit2003]

@@justinnewhouse59 But you are still right. Boost that compression and see how high they fly!!

[@kurtriedmuller8223]

Awesome wish I had 20k to blow!!!

[@BigDaddy-fx4nx]

some people want 20K for blow. I'd rather have the engine.

[@rdy2run332]

You and me both.

[@mrmidnight32]

Yea no shit. This ain’t no fucking budget lol A normal budget is around $2,000 not $20,000

[@Will-216]

Right who has 20k!!!!!! Honestly it should have taken around 6k to build 1000hp with that 460 there’s not a lot to do. John kasie sr71 heads alone will get you half way there I say the 14k is going in the mechanics pockets 😂😂😂

[@jasonshawaga3413]

Watching this really makes me want to get an engine built by these guys.

[@Andrew-hh3ol]

If you have minimum 10k laying around

[@Nowayjose-z2r]

@@Andrew-hh3ol At least.. lol

[@Andrew-hh3ol]

@@Nowayjose-z2r they post prices occasionally this one was over 25k

[@bradleydennis1263]

Lance Stillwell, we've talked on the forum on Facebook Been taking your advice for a while now. Now I DEFINITELY know that you know your profession! Excellent job buddy

[@motorsports312]

Thanks

[@spencerwoody807]

20k in the customers Budget, my budget is a junkyard 350

[@OldGriz708]

There's no better sound than a big block chevy over 7k rpms 🇺🇸👍🇺🇸👍🇺🇸

[@MickeysRacing]

Great video, what engine dyno is Lance using if i may ask.Thanks for the video and thanks in advance.

[@TheHorsepowerMonster]

Thanks for the compliments. It is a Dynomite dyno. I think it is made by Land and Sea.

[@theTIVANshow]

@thehorsepowermonster your are CRAZY! 20K for a motor. WTF dude. Your want 1000 hp for less than 1k. Buy a stock 6.2 diesel gm motor ( 80's motor ) convert it to gas . Change the pistons, double the value string , threaded valve studs , remove glow plugs drop in a hei distributor and add fuel injection and a 250 shot of nitrous and get a 1000 hp motor all day long for less than 1k.

[@adamjuiceman]

Huh???? How does one double the value string??? What is that? I've only studied engine building for 25 years so I'm kinda behind....

[@theTIVANshow]

@@adamjuiceman use 2 springs. One inside the other

[@countryjoe3551]

Cool story, brah.....

[@adamjuiceman]

Lol all the face palm

[@theTIVANshow]

@Barry Boppins Facebook market place or graigslist

[@dp6824]

# 1 GREAT Vid very very nice well put together / # 2 holy Crap nice build you guys know exactly what you are doing Love the motor you told every aspect of everything in a efficient matter you are just plain bad asses

[@TheHorsepowerMonster]

Hey thanks!

[@grumpyg9350]

This was so cool to watch.👍👍👍👍👍👍

[@manitoublack]

why not just use an ex-nascar 5.8L or sprint car 410 engine? Should have watched longer. :D. Need wet sump ;) 15:1. hahaha, that's a diesel Great info in the vacuum pump as well !! Great video as always

[@jeffkopher3468]

Almost! Bet he's running nitro-methane.

[@ryanhubble9157]

No nitro runs vp my good freind that pretty well dominates the class he runs had a 622 with 17:1 compression running vp 116

[@jw4620]

Sweet!

[@jimkillen1065]

Always enjoy the videos. The vacuum pump has been discussed a few times on the utube channels. On tech talk Tuesday George stated it helped a large amount on prostock bikes back when . Helped ring seal . I was told to be careful as it can influence how the oil goes to the suction . No experience on that . If it was allowed dry sump would be my choice

[@Shakira_6.0]

What mud truck has 8000hp...

[@TheHorsepowerMonster]

What I said was he was competing against guys who have A thousand horsepower. Sorry if my Southern made that tough to understand. Thanks for watching!

[@Shakira_6.0]

@@TheHorsepowerMonster ahh ok! 8k horsepower would be insane!

[@justinnewhouse59]

comeatmebro. I know plenty of mud racers with 2000+hp! But your talking 700+ cubic inches that makes 14-1500hp n/a then add 2 or 3 kits of nitrous on top of that 😆

[@bigredracer7848]

With the TD rocker shaft have you ever noticed that the aluminum rocker shaft irons on the exhaust brake to the heat Any of the drag racers run steel ones on the exhaust valves to eliminate breakage

[@daltonhayhurst8501]

i would love to see the horsepower monster get into one way technologies and see what one of these top notch sprint car engines are about!

[@davelowets]

That's Classified information...

[@JS-oy6nn]

In 2002 I worked with a guy who was into the same thing here in WV. He had a 598ci build in a tube chassis Ranger, basically only the back tires were in the mud, he won every county mud bog that year. Anyway his wife ended up divorcing him over the engine for his truck, he spent just north of $33,000 and in the divorce papers was the build sheet and recipes for the engine.

[@fbanda20]

Dudes in Florida watching this like pshh hold my beer!

[@richb.4374]

Very cool engine build. It's interesting that a vacuum pump makes so much difference in power.

[@mattlead9436]

Love these videos, keep up the good work!

[@michaelparadisis4076]

Killer package. Well done.

[@konaboss83]

Our telephone speakers give the sound she made no credit 15:1 and a huge roller cam 🥰

[@Nowayjose-z2r]

I always wonder why they lube the bearing journals (not sure if it's the right terminology) on a cam BEFORE they insert when by the time it gets to the 5th bearing it's wiped clean. I personally re-lube before the cam is set in it's final spot to make sure enough lube for when I turn the assembly as needed during the build. Obviously once you prime it it wipes it all away, but at least enough for degree the cam and setting lash etc.

[@alittleofthisandthat8003]

Go get a junkyard 6.0 LS and put a aftermarket cam in it and a turbo setup. Way cheaper and will make close enough to the same horse power. With a little better bottom end it will make more horsepower.

[@CristianZamora]

I LOVE old school mechanics that don't wear gloves

[@ChrisSmith-ig9jq]

he has 600 hp and hes tired of people with 8000 hp??? thats like being in 1st grade and upset with college graduates.

[@bowtie-man]

Man that olé girl sounds healthy😍 😍😍😍. Off the shelf parts, 1053hp, and under 20k ( hold on a minute I'm drooling again) I'd love to put that olé girl in a drag strip s10. Thanks for sharing another big block video. 👍👍👊👊✌✌

[@TheHorsepowerMonster]

Thanks!

[@110americalovingpatriot2]

Did he say 8,000 thou th th th th th thousand horsepower??

[@johnsmith-qz4bv]

that is awesome that will get the mud truck moving....

[@garywhiplash8952]

Probably would make over 1100 hp with tunnel ram and 2 carbs 😉

[@jjmccloud]

Would this style of oil pan fit in an obs chevy z71 with it being 4x4

[@SteveoGregg]

1040 horse for 20,000 is a steal of a deal, If ya got 20,000 , 😂

[@coreywatchman4831]

Hi buddy I would like the same get me a price and do you did finance engine

[@THRASHED05]

What a donk I want one.

[@bobhilly546312156332]

I really only came to help with the cam selection for my mud truck

[@baddonkey6876]

Looks like you can't get that secret from here, lance is super quiet about the cams he helps engineer

[@Brock_Landers]

I'm telling you man, you NEED those large 4 bolt main caps when you consider how long that engine's going to be at high RPM and how much load is going to be put on it for an extended period of time.

[@gregarioussolitudinist5695]

The problem is not power, it is traction.

[@dj13yrs1]

The vacuum pump actually takes more power to turn when sucking atmosphere. Look at all any electric vac pump and it will pull more amps when at atmosphere then while at vacuum.

[@dj13yrs1]

That is why they spin faster when plugged/ capped off.

[@newfinishautospa]

Should be torquing the mains before checking crankshaft thrust.

[@suabroboro]

Clean build😙

[@fellowship_of_the_goat]

Some people you can just tell they know what they're doing, and the Stillwell family certainly have that. -looks like a motor is built in the kitchen -father and son look identical but 25 years apart -tools are worn but clean -secret sauce cam measurements I bet he could torque every bolt in a motor just by feel almost to the pound. Love these vids.

[@timewarpvideo6244]

Mud bogging rocks! So does that engine build

[@sendit2873]

i know a local shop does 635 ci with 1100+ hp for$ 12,000 and 800hp on pump gas with the 800hp he has been around forever the guys in the video know their stuff also you need to mention the heads need to be torqued in 3 increments so they do not warp

[@mrdaykurutakuchannel]

That's an awesome 9.5 liters of BRUTE FORCE!!

[@dimonfil9131]

Класно и интересно смотреть хоть по английски я не понимаю. Но все равно смотрю. Лайк и подписка. Привет из России Московская обл. Г. Красногорск.

[@MURATSEYİTHALİLOĞLU]

What parts need to be changed to make such powerful motors

[@hell-sol5240]

Everything lol what a dumbass question

[@mattw4486]

@@hell-sol5240 lol!!!

[@MURATSEYİTHALİLOĞLU]

@Barry Boppins what parts are needed.I can do the merging.

[@MURATSEYİTHALİLOĞLU]

@Barry Boppins Someone @Barry Boppins should tell me good materials, I order and can do the joining.

[@hell-sol5240]

@@MURATSEYİTHALİLOĞLU I wasn't being an asshole man you legit need to pretty much replace everything. Do you. Not know shit about cars do you need a full on list?

[@_Undecided_]

I have a small block chevy in a 1984 square body on 38s that would blow the doors of that truck 😂

[@airraptor]

Just got done watching a video on the new LT6 corvette engine and then come watch these older ones being built lol

[@regsmith7604]

That’s a bad ass BB

[@mccoulombe941]

Great deal

[@markk-ng4hq]

Now we dont have alot of money to spend on this engine. The best we can do is 20k.

[@crautoguy8384]

Not talking shit that is a badass built I wish I had 20 grand and call Yup

[@captjim007]

Biggest surprise was the vacuum pump advantage/disadvantage.

[@bigblocklawyer]

In part two in this series, we find the next weakest link in the truck.

[@larrymagee8758]

Finally, a builder who knows how to use a ring spreader.

[@princejiminez5032]

Watching this makes me want to build a car or truck

[@runner4life1984]

Sounds like he said 8000hp!🤣🤣🤣

[@e4300]

Pretty amazing deal at under $20,000.00

[@AntiPattern328]

Wow! I had no idea a vaccuum pump could do that...

[@stormyyoung6344]

Good content keep it up.

[@TheHorsepowerMonster]

Thanks! And thanks for watching!

[@David-yy7lb]

I just love the sound of big block v8

[@SubePelayo928]

Think stock Toyota T case can handle it?

[@johnarntz1677]

Build a 460. It will do Better.

[@mrmidnight32]

“Like the rest of us, doesn’t have a lot of money.” Also them: “Were going to make over 1,000 horsepower for around $20,000.” I was expecting $2,000. That’s my fucking budget 😂

[@jesusisreal3209]

YOU can do it for $10k, I just built a premium 385sbc with eagle forged crank and 900hp rods from jegs that will go over 1200hp , you can find deals on great pistons like wiseco on e bay for about $400, heads are tough deal I get them usually bare shop around and load them with manly valves,

[@WAffLEz_WTf]

I love this shit🤣