DIY TURBO 440-MOTORHOME GETS BOOST!

[@Lagrange1186]

I know the budget would be just unreal but man a big block Big Bang showdown between the big 3.... 440 vs 454 vs 460! 🤤

[@markindzeris369]

I love my Edelbrock headed 440, but factory development stopped in '76-'78. Ford and Chevy big-block development went on for many years with EFI and much better port designs. Unless you want to talk Pro-stock B1, or Hemi---> nothing budget about those.

[@idriwzrd]

Yes! Send some Patreonage Richard's way so we can see this.

[@utahcountypicazospage5412]

It would all be up to parts availability and we know ford and Chevrolet have everything aftermarket down to each bolt Chrysler would keep up due to no aftermarket parts at least not as many

[@Joshie2256]

@@utahcountypicazospage5412 What?

[@Val_Killmore]

@@utahcountypicazospage5412 All he would change is the heads, cam and intake. Whole point of the big bang is to see what the stock rotating assembly can support before it turns into a Jackson Pollock painting in the dyno cell

[@arthurrose6473]

Gotta say, as someone who has built 440's for 50+ years, you UNDERSTATED the potential of this factory motor by a country mile. Superior rod ratio's, skirted block, shafted rocker train, widest lifters in the industry, improved casting bulk heads and main webs; this engine with the factory forged crank (standard thru 1972, but appears cast based on damper) will handle 800hp NO PROBLEM. BUT, you did the right thing holding in the 500hp range with cast crank.

[@richardholdener1727]

the cast crank will go way over 500 hp-I limited power because it wasn't mine

[@stevenbean9706]

@@richardholdener1727cryogenically treat the crank and rods .

[@ilovethephilippines8991]

I built a 440 using all forged internals, 906 heads, full race prep, oil galleys,balance, align bore,deck surface, ect ect using a Baha torque master cam 8.25 comp and 22p boost in a 15,000 kg International truck on straight propane using USA OHG equipment 5 sp gearbox 2 sp diff as my every day money maker, here in Australia TOTALLY INSANE, estimated 650 hp at 5000 NO TROUBLE pulling full boost up a 5 mile hill fully laoded, ONE TUFF BLOCK these things.. 120,ooo miles still going strong., if i could add photos would be happy to do so. By the way, TOTALLY LOVE THIS SITE... Please keep up the great work...

[@dh2360]

Mopar 440 with turbo is a great idea.

[@warrenstephens3705]

Dang, its amazing to see what 5 to 7 lbs of boost did to a tired old 440. That thing LOVES boost. I'd rebuild this tired engine and give it a complete refresh, then I'd add on the turbo kit you made and install it in my '71 Demon. I'd run it at 7 to 8 lbs of boost. With around 600hp and over 650 lbs-ft of grunt, it would be a street demon for sure. At that power level, the 440 would be so under-stressed it would last forever. Kick ass!

[@joseph.seaker9082]

Uncle Tony has a episode with a friend and a roots style blown 440 that is all bone stock handling it for years, you sir are correct with your statement

[@MrOgre1110]

Great job Richard, good to see a pump gas motor and "sensible" boost lol. Would make a fun street car

[@richardholdener1727]

Thanks 👍

[@watsisbuttndo829]

I agree, this setup is attainable for the average guy and as long as the base engine is in reasonable health, not too many nuts in the pan, it should be reasonably reliable. And very street friendly.

[@daviddavis1322]

@@watsisbuttndo829 Agreed. As long as it's just one nut, attainable. Just watch out for a second nut.

[@watsisbuttndo829]

@@dj4monie agreed, i have a 65 gto that has power steering and air conditioning that i definitely want to keep so i have a cramped engine bay already but a rear mount low boost blow through carb setup is interesting. Ive asked in the comments before if he could mock up a rear mount setup with regards to pipe length and test for spool times compared to front mount but if its on a near standard big block lag becomes pretty irrelevant.

[@thomasfisher2879]

With the size of the harmonic balancer so big, it looks like a cast crank. Factory Chrysler pistons usually are pretty heavy/beefy and would seem to take and dispurse a load of heat and handle the pressure of a long incline/grade. It stood-up to Richard's boost, albeit moderate as it was, 650 ft lbs of torque is rather significant. Not sure if sufficient ring gap is on those pistons, but I would be interested in a 15 or 20 minute run at the 600-650 torque level. Now THAT would be an excellent test of the rotating assembly on a Raised Block Mopar! I pray Richard keeps Big Block Mopar engines in mind for future tests and upgrades.

[@MrTurboAaron]

I have a 440, sitting the backyard, if you want it for More Tests!! I'd like to see the limits of factory part on Boost! Lmk!

[@lambomatt2]

Id love to buy one for my 69 cuda my email [e-mail]

[@jeepfan971]

I need one for a Plymouth

[@markwise9868]

Thanks for finally doing a 440. Heads and low CR are the achilles heel of motorhome 440's. They still make great torque and that's what makes for big fun in a street car!

[@ThePaulv12]

Stock heads are fine. 906/915s flow good when modded with bigger valves and a port job however the cost of labor isn't worth it anymore with cheap aluminum heads with every mod already in them - that and the weight saving lol. In fact Steve Dulcich wrote a series of articles on the 1970s iron heads where he forensically tested and compared them to the 906/915 heads of the 1960s and found the so called 'smog' heads of the 1970s were actually better for flow. Admittedly he didn't test the motorhome heads but I think the only difference was the tapered plug heads, so correctly or incorrectly I reason?? they are probably pretty good for flow like the rest of the 70s heads. Here you go. Dispelling the myth of poor flow BB Mopar heads of the 1970s. Well worth a read for the big block Mopar man: www.hotrod.com/articles/cylinder-heads/ www.hotrod.com/articles/cylinder-heads-ii/ www.hotrod.com/articles/cylinder-heads-iii/ www.hotrod.com/articles/mopp-0109-440-head-buildup-dyno-test/

[@hoost3056]

I think that the engine has the pistons set in the hole slightly which is bad for combustion efficiency. Id low buck it with some heavy cast pistons and good rings to achieve a zero height to the deck, maybe some rod bolts, definitely studs top to bottom, then run alcohol through it.

[@frigglebiscuit7484]

@@ThePaulv12 i have a set of the motorhome heads on my 400. they have been bowl worked. they seem to run just as fine as the other smog heads. i like the spark plug cooling jackets.

[@furyfantoo]

@@hoost3056 Not slightly down - mid-late 70s 440s have pistons around .150" down, you're not going to find a cheap tall piston to make up for that. A 3.90 stroke crank would be near-perfect for a zero-deck engine, but those aren't available anymore, and if they were they'd be for BB Chevy rods - which spoils the low-buck aspect. And balance might be off at that point anyway.

[@karlsracing8422]

They did offer a turbo kit back in the 70s for the 440 motorhomes.

[@spotsornot]

I actually have one of the old RV Turbo kits on the '68 440 in my W350 four door, high compression and boost makes for a very fun ride.

[@harvestblades]

@@spotsornot Man that would be awesome in my '81 W250! That torque & HP seems essential in a motorhome.

[@HansShackleford]

Thatd be a cool way to turbo my 413 magnum

[@SloppyMechanics]

its really neat to see the single Gen2 doing so well on a 440 inch engine

[@zacf85]

That's cause the stock heads have the ports of a small block..

[@Glen_Patti_H]

This video just made my day! I'm doing a twin turbo budget build 440 in my rat rod and I wasn't expecting over 500 hp. I'm really fired up now to get it done!

[@NN072288]

The low key goal of this channel is for Richard to boost every engine he can get his hands on. HAHA I fully support this goal.

[@supercuda1950]

That was great and gives us Mopar guys another power source. You notice the engine came with chrome valve covers to block those gamma rays and space lazers to increase hp by at least 5 hp!

[@johnparrish9215]

I love it when Richard builds a damn good Truck engine. The thing would be a boat towing beast.

[@Max-me9xq]

I was waiting for this. My dad has do many 440’s in the Garage and I been trying to get him to do something with them

[@projectinlinesix]

I love this show! I each it every morning with coffee. Want to know the best way to start the day? MORE HORSEPOWER!!

[@tragicnomadic]

It's all fun and games till you put creamer in the cereal and milk in the coffee... But its okay cause boost makes the world a better place

[@glenholmgren1218]

LOL! Yep - MO POW-wah, Baby! 😁

[@xx_ironman77_xx1]

If you guys didn’t notice those stock log headers is what was really holding this engine back think about it with any kind of headers bet it would make at least 40 more horsepower even if it was small hot rod headers 😍

[@LucoreAuto]

Thanks a ton for posting this! We just wrapped up a 451 stroker build based on a 400 with "Motorhome" heads and in the next phase with that motor will be adding boost, definitely cool to see some real world numbers on what to expect!

[@lungsup]

I love the fact you have timing info on this one. Please keep doing that. Thanks.

[@fasteddy]

Wow, you wouldn't get that info on a ls engine. Must be information we already know???

[@rikubot]

This gets my rocks off. Likely build for my spare motor home 440

[@TurboJohn74]

Richard, you always add something cool to the early mornings. Coffee+ Boost= JOY

[@richardholdener1727]

Glad you enjoy it!

[@dominichouston955]

Here for the 440, subscribed for the craziness!

[@matt-be8kt]

Isn't that nice of Chrysler, had so much confidence in their product they were giving away spare parts with every Engine LOL.

[@Adrianzx]

Seeing all this turbo plumbing reminds me why this is one of the best channels on KZbin.

[@bcbloc02]

8psi turns that thing into a respectable engine. :-)

[@supersevenn]

yea, because 600 ft lbs isnt respectable at all...

[@blueduster74]

For a smog era 7.5-1 compression engine it did great.

[@hmbrew2754]

10:1 on one of those with a trick flow top end kit give me 630hp n/a

[@JayLupe]

@@hmbrew2754 how much did that run you?

[@burntorangeak]

Nice to see something more than dyno graphs recently. Thank you.

[@richardholdener1727]

Glad you liked it! I'm at Westech so I can do more when I'm here testing

[@Solamint1]

Excellent video! Truly low budget boost. I like seeing the potential of relatively stock architecture engine, without a lot of bolt-ons. Please do more of this type of testing.

[@davidkoons939]

Thank you for the Mopar B/RB love. Hopefully we can get some full Mopar builds in the future, always limited testing for the "other guys". Great series!

[@derekturnbull9046]

Been waiting for this and did not disappoint thank u!

[@HoosierDaddy_]

You are the man! Now Steve D can put it in the Mopar Muscle Truck with a homemade turbo system like yours! Keep doing what you are doing!

[@richardholdener1727]

I wish!

[@QuicKurtZX14R]

Working hard on the weekend just for us, Thanks Richard!

[@darylSKYTZOwillis]

This is the closest thing I have found to what would happen if I installed a turbo on my '95 Chevy 454 RV, provided a blow through would even a stock TBI. Keep up the good work 👍

[@captainlandyacht1328]

Richard, as a C body guy. I want to see a big bang with the Chrysler 400 smog motor. Dime a dozen and no respect in stock trim. Also look down, the caddy guy has got a point. Those a real cool too.

[@scottymurray5673]

Got the 69 newyorker for demonstration!! Who’s up for that challenge

[@BadassBarney452]

Love the other guys builds, great job as always!

[@Batarnak.]

Awesome videos !! Discovered your channel a week ago , the only thing i can say : THANK YOU :)

[@richardholdener1727]

Glad you like them!

[@illiod1]

ITS A-L-I-V-E....,nice build up. Dr. Frankenstein would be proud. Thanks for your hard work and practical data.

[@richardholdener1727]

Glad you enjoyed it

[@rdakota340]

Awesome job thanks for all you do and taking any guess work out of any project enjoy your work sir.

[@B0RN2RACE100]

Always come back to barracks looking forward to see what Richard uploaded the night before

[@angelovasilikos7980]

Awesome video. Thank you Richard been waiting for this one. And thank you for working on Sunday (mother’s Day) to have the video up in time.lol you must of put up with a lot of grief yesterday lol

[@MrR6guy]

Awesome finally mopar stuff..BIG BANG A 440! wooHOO suscribed

[@generaleehank01]

Thanks for doing this. Really neat. Its nice to see different engines on the dyno. Great job as always.

[@notinterested5787]

Thankyou for doing anything that isn't a ford or chevy! The fact it's a 440 is icing on the cake. I would like to know the original application for the log exhaust manifolds. The high performance ones wont work with a turbo.

[@jaredfarney675]

Well the turbo setup has my mind thinking. That is absolutely streetable and the bottom end power is great from a dig. Thanks!

[@catsandcarsringtailgang6188]

Wow! Can U say. TURBO L A G !!! All that tubing. In Duluth in 70's we TWIN turboed a 440 built boost up to 22# to how much it could take! Autopsy the rods were in a S shape ! (440 were essy to come by then) Rite after that, Edmond Fitzgerald sank.

[@davidthompson245]

Your nuts!, but a good kind of nuts!. Well done Richard.

[@johnboticki9154]

Most interesting take away from this test was when looking at the boost formula. The 440 made the 346 hp with long tubes. Then when turbocharged it had the stock manifolds on. And yet the formula held pretty close.

[@ThatAustralianDude]

Good to see you using the gen2 7875, my 5.7 ls1 is loving it, just has a custom t51r mod done.

[@gregsanderson9617]

Passenger side turbo mounting u can weld a bung in fuel pump block off plate for drain back, works great

[@richardholdener1727]

we looked at that-was also hoping turbo was high enough to run drain to valve cover

[@frigglebiscuit7484]

freaking genius.

[@exploranator]

LOL Richard "We obviously didn't stop there" Holdener.

[@Tony.Bain42]

Speaking of rv motors, let's see what happens when you turbo a Ford v10! A friend and I have been talking about it because we have a rv with one.

[@sseibonnevilleman]

Tony Bain I’ve heard the bottom ends on those are pretty weak. No personal experience though.

[@johncholmes643]

They're built like a 5.4, basically a 5.4 with 2 more cylinders.

[@lloydholt6511]

Tony Bain th se engines were designed for trucks. Low rpm high torque applications are where this engine shines. A small turbo (keeping boost around 8-10 pounds)with a small cam designed to increase torque might be a good application. I think as long as you keep engine speed below 5000 rpm it would probably work just fine

[@bertpryor1158]

Until ya blew out all the spark plugs, ask me how i know!!

[@itchytriggerfinger7622]

You probably felt like a plumber after all that. Thanks for the great 👍 vid. Thing is a torque beast.

[@rhperron1]

Love the Holdener patented boost formula!

[@Qazjf]

I love this video! Showing what you can do with the old and I’m sad to say it but obsolete engines like these big block low compression engines like an RV 440 or a FE engine on pump gas love it because it’s something you can do and drive all week and get on it when you want and not have to worry about race fuel or e85 I hope to see more like this video I was so pumped for the last 2 days for this video!

[@bobqzzi]

Every day it's another wildly entertaining video. To be honest, I'm a bit disappointed you didn't window Freiburger's block though. Keep up the great work.

[@mrman4003]

I think it would be very challenging to get all the turbo stuff in a engine bay. I wonder if cooling this engine will be a problem? Keeping a 440 magnum cool in stock form is challenging enough.

[@moparnut6286]

This engine would go great in a charger , Cordoba , an A body would be a killer...........love you Richard you prove hair is for suckers!

[@Cuttyman9]

I think I picked up the perfect core for this! Stock 76 440. I’ll toss a cam at it maybe an intake. Would probably try my hand at building a carb for this but overall seems easy enough and great torque for a polara wagon I gave

[@ufarkingicehole]

Not bad for a worn out 440!!! Thanks Richard!!

[@ygtcbee23]

Richard, it would be great to see a boost video explaining turbo applications. You Know single, twin, compound, and sequential turbos and thier boost applications. There is no one best boost setup it'd be good to explore the individual strengths of each application. After all who doesn't like a video on Boost!

[@richardholdener1727]

Noted

[@shitbox7413]

This engine would be a blast on the street, I’m thinking 4 door or D100. 😁

[@crouchingwombathiddenquoll5641]

Nice one, I'm sold on the turbo idea. Peace from Australia

[@ben.alldridge]

Need to get a Barra over there and tinker with that, Richard. I think if anybody could put it through its paces, it's you.

[@georgecolbert3247]

Great Test. I thought of doing this years ago, but I couldn't figure out how to fit all that plumbing under the hood.

[@mp5778]

Shows how well low boost 5-6psi pump gas works on a stock motor. It is not always about maximum power.

[@bobcuomo5122]

Great video.....like to see the 460 you did with turbo !

[@ufarkingicehole]

I'm sure its coming.... stay tuned!! (Get it? Stay tuned!!! Lol)

[@deanstevenson6527]

Mr flimflam fremdippity danyet : Lol. Electronic Tuna .Entertainment thats Weak....

[@nickwheaton1527]

Love seeing the mopars.

[@BackinHaction]

good video! i like the practicality of it. I enjoy pump gas tests much more than race fuel tests. thanks richard.

[@chrisdvasquezzl1]

Not bad for a junkyard engine missing one rod cap nut ! Amazing!

[@ChevyMustang1]

Great video I always enjoy watching your videos but I like it when you show more of the build and set up in tuning instead of just showing the grass and stuff alone. Keep up the great work and videos coming

[@2jsalomon]

loving the behind the scenes action my man!

[@thodieousk5853]

😁 Nice amount of information, Thank you ,I have a 76 Powerwagon 440 and now I know what to expect with these setup's

[@thevermonsterrichards5163]

I love these motors and bang for the buck great way to toss something like you mentioned in a car or 2wd pickup GREAT VIDEO

[@aaronbarnes8938]

Great to see a mopar. Richard you should do a 318 magnum big bang from the junkyard

[@donellmuniz590]

Yeah, that setup would fit REAL good under my hood, LOL. Of course, I could go Roadkill and leave the hood OFF, but it rains a lot around here.

[@lmbfr1]

Clients of 'Nicks Garage' Montreal will applaud you.. X over exhaust pressure/ inlet pressure chart?

[@MrWolfTickets]

Awesome experiment, great videos!!

[@jeremysmith1339]

This (other guys) is awesome!

[@moparandbill]

Im running the same cam and carb in a 440 motorhome motor with a edelbrock rpm manifold. I gotta turbo it now!!

[@jimkillen1065]

That was pretty smart on that boost level . I was thinking yesterday wonder where he will stop and at less than half of one atmosphere.. if you wanted to see what a 440 or a stroker 400 is capable may be use some indy components. I guess there still around . I left the dodge camp 40 years ago . Now it just interested watch

[@saccaed]

Thanks for the video. Gives me an idea of where I can go with my 440 rv. I have plans to run a turbo, but not after heads, intake at minimum. I would worry about running an iron head with turbo for an RV because of hot spots that already are an issue for long hill climbs. Crank, rods, pistons likely will get swapped same time I get around to a turbo. After a few road trips, the weak link for the RV is how poorly the stock truck 440 pulls up grades. Regularly would end up climbing a long steep grade at ~28 mph because stock torque production does not carry well with RPM(bad stock intake, heads, and exhaust conspire to kill power).

[@mattvorhees6055]

Mopars in most cases have the strongest factory blocks and rotating assembly of the big 3. There down fall are the heads. Its pricey but a set cnc heads and intake would wake this thing up big time.

[@Sparkystacoma]

Put an intercooler on that beast and I'd run a grade with it!

[@gerfinafn4573]

That thing would be fantastic in Freiburgers Super Samurai!

[@abarry48]

Great video. Definitely would like to see what can be made out of an old Ford 460. I have one laying under the hood of a old work/service truck.

[@Mike-01234]

I had a boat with a 460 ford engine I replaced it with a small block ford 302 I bored and stroked to 352 with a 70mm turbo had a dart block out of a mustang used to drag race. The engine made more power and torque was lighter then the BBF engine. I only ran 5 LBS of boost because I wanted to run pump gas I did test it up to 18 psi on a dyno got up to 740 hp and 850 lbs of TQ. That was with Trick racing fuel.

[@keepout7439]

That was Awesome brother 💯👍 , love it

[@ze_german2921]

600-700 ft lbs is a whole lot of fun no matter what you drive.

[@trentm7964]

Sweet. Wot is nice but what are the effects when running part throttle? Say towing a trailer on semi flat roads. Real world. Thanks Richard! Appreciate the long hours.

[@deanefoxsr5732]

I love the other guys stuff being a mopar guy how about a b motor 383 there are more of those than 440's do some modern heads cam. And intakes carb and fuel injection

[@fgchotline3964]

Hey Richard, send it to dulcich for a present, get him to throw it in a dart or something he has laying round, would love to see some of these test motors you do fitted into cars and on the road

[@rickypennington9544]

What about the Ford V10 , do a small build and boost very curious

[@Avearbear]

I got a 78 440 out of a motor home that I put in my 72 Fury 3. Would like to do this kind of turbo set up making 5.5lbs of boost.

[@tomcrosby6332]

I have a motor home 440 with 484 purple cam, and ported '66 heads, headers, Edelbrock 750 and tarantula (TM 7) intake, in a '69 GTX. I would have liked to see a 6-71 blower. I saw your video of the 6-71 on various chevies. That was good too. Thanks

[@richardholdener1727]

Very nice!

[@LeeroysMopars]

Big bang 318!!!

[@UnityMotorSportsGarage]

Love it Richard!!!

[@landmine950]

Love to see it with a 400 magnum! 1974 dodge charger style

[@jeffschwartz5199]

Wow ! See I knew it would be a stump puller ! Would you put it in a light drag car, just to see? Great "what if" test. 🤞

[@michaelclanton1152]

Great basic build for a starter engine just getting into power.We could use more info on the cam,carb.I think you need an expansion tube in the exhaust so it will not crack.What was the AFR?

[@jayparker2542]

Would like to see some work up's on 92' and up Magnum 318 and 360 motors with turbo. Cams, heads, and intake combos...

[@richardholdener1727]

yes

[@jayparker2542]

@@richardholdener1727 So the reason I'm curious about this build is in the summer of 2003 I built a 93 Dodge Dakota Sport with the 3.9l V6 Magnum and 5 speed that was fitting with a Grand National turbo TA-49 and intercooled. All stock internals and 9.1:1 compression. except 1.65 roller rockers and studded head bolts. 24lbs injectors with adj boost reference fuel regulator. And stock computer. At this time it would eat a then new Zo6 with 405HP all the way through 125mph which was the factory speed limiter.. I never knew how much power it made. But always assumed somewhere in the neighborhood of 450hp-520hp at the wheels at roughly 17psi based on way it's pulled away from the Vette.. So a Magnum 5.2l 318 with mirrored upgrades should produce fracturely higher results based on the the 2 extra cylinders of equal displacement...

[@edward-x3s6f]

Ty i just.bought a 440 out of a motor home 1979 can i touch base with you to get ideas on.which way to go with my project 👍👍👍👍👍

[@chrishuffines06]

Awesome video! I just bought one of those turbos. I went with the 1.25 housing. It's going on my lq4 Silverado with the summit ghost cam( 222/233 115+3, .600/.575) I'm stepping up from a 76/65 lol.i hope it performs well. The Turbo seems to be solid on pretty much anything u throw it on! Keep up the videos bud!

[@richardholdener1727]

they work well-just ran it on a 4.8L