1000hp Cummins conversion (4x4 CHEV)

The K20 build series has officially started ! In this episode Mac begins the build by removing the factory engine and getting the 6.7L Cummins mounted and ready, so he can then commence the suspension.
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0:00 intro
01:28 The motor has arrived 6.7L 2008 ram
02:27 Plans for the overall build
04:18 Preparing a 6.7L Cummins before conversion
06:00 How to pair a 8HP gearbox to a 6.7L Cummins
08:24 Preparing to remove the original engine from K20 Chev
10:35 What is a coolant filter ???
11:43 8HP auto bolted to 6.7L cummins
13:50 Removing drive chain from original vehicle
14:53 Removing the engine from a K20 Chev
16:27 Removing Tub from the ute
17:10 Test fitting the 6.7L Cummins to a K20 chev
18:41 Laser cutting custom engine mounts
20:45 Finalizing the engine mounts for a 6.7L cummins
23:22 Plans to get it running

[@geofftuck7347]

Ahh been hanging for this build for what seems like ages, Maca you didn’t disappoint!! Compound turbos, built axles and coil overs to come too!! Man this is going to be a beast on the tracks 🤙🏻

[@Rossco139]

Im doing something similar with an old 67 C30. I cannot say how awesome it is to see this being done! Cant wait to start.

[@dodgyfab1231]

I love these old American utes so much. My dream one is a 1970 f350 dually 4x4. I’m so keen to watch this thing progress and it’ll be sick seeing it with the Cummins in it.

[@mikemorgan4670]

Great to see you back in the shed doing what Macca does best! This will be fun!!

[@TJANDMAC]

Yep the big Chev is gonna be a beast

[@craigjensen4179]

What an awesome build series this is going to be. Keep in up boys

[@bamafencer12]

Ahhhhhhhh! It's like Christmas day! Been waiting for this build series. As an American that loves older trucks, especially Chevys this makes me so happy. Those trucks are well built and won't let you down. Easy to work on. All I drive is older trucks. Y'all Enjoy the hell out of that truck! Cheers TJ & Mac 🍻

[@TJANDMAC]

Thanks mate always great to hear we have American viewers 🙌 thanks so much 🙏

[@macpreston]

Cheers mate! Cant wait to enjoy it on and offroad!

[@TorqueMediaau]

I’m beyond excited for this build!!!

[@joshuabamford5396]

Can’t wait to see this monster finished! K20 for the win!

[@shanenorwell8580]

What an awesome build guys, pumped to watch this.

[@rouseyanglerholics]

Love this build! Always loved these style rigs. Looking forward to seeing this completely finished. One day I’ll find an old F100 or F350 like dad use to have and build on up.

[@huntsnewy]

Heaps cool! Cant wait to see it done!!!

[@aaronmcclanahan7870]

Looking forward to seeing the whole build

[@TJANDMAC]

It’s going to be a rippa 🤩

[@PatrolLuke]

What a wikid build! Keen to watch this one.

[@jmac822]

Yes, I've been waiting for this build. Sick😎👌

[@TJANDMAC]

Gonna be a beast

[@reddo84]

Soooo good! Great episode and progress Cheers Jim

[@TJANDMAC]

🙌

[@locobogan9588]

Keen for this build 🤙 twin turbskies sounds like fun 🐌🐌

[@jasondaley6723]

Another fun filled episode, the introduction was man

[@user-qc1gd4jc4l]

this build is going to be so sick👌

[@jamesk4455]

Absolutely love the channel. Keep up the great content 👍.

[@TJANDMAC]

Thanks, will do James !

[@jessetink3753]

Welcome back lads. Hope you had a good new year and chrisy 👍🏽🤙🏽

[@macpreston]

Thanks jesse you to mate!

[@NateH-qd7bm]

Super cool to see one of those old trucks getting somewhat of a restoration

[@TJANDMAC]

Yep gonna be a big build 😅

[@dylanfrench9412]

Love what you blokes are doing. Brilliant channel 🤙

[@TJANDMAC]

Thanks so much !

[@struuuth]

Sick truck with that ShedLife twist

[@hiddenwatersflyfishing]

It would be amazing to see this thing on a trip like the old telly track when it's done!

[@roningrae]

Metric tap drill size is thread diameter minus thread pitch. Example: M14x1.5 14-1.5=12.5 tap drill size

[@richardwalsh5570]

100 percent 🎉

[@macpreston]

Bloody awesome to know thanks!!

[@rainbowags7168]

love everything about this, i had one of the nicest looking OBS f250's with a 7.3L powerstroke here in sydney, recently sold it. this video makes me want to get a chev now haha.

[@TJANDMAC]

Haha yeah for sure! , it’s gonna be a big build 😝

[@cyclemoto8744]

Wicked. cheers lads

[@benpalermo9267]

jeez i love these guys so much

[@TJANDMAC]

🤩🙏

[@reubend340]

Very keen to see how that 8 speed goes with the mega ton of torque once thats engine is tuned. Im very close to getting one for my 79 thanks to you Maca 😂.

[@jakeotto7508]

Loving the content fellas!! I see a cheeky brand new 79 in the background there 🤔 new build giveaway? 🤷🏻‍♂️

[@jaybutler6391]

That’s so sick

[@TJANDMAC]

Gonna be a beast 🤩

[@user-og9tn9vi7s]

1:29 ahhh that's where our pallet trolley went 😂

[@offgrid4x481]

YEEEEEEEEEHAAAAAW BRING ON THE K TRUCK!

[@SamYoung4x4]

EVERYTHING NEEDS 1000+ HP! 👑🔥

[@TJANDMAC]

🤣 how about 2000nm ? 😜

[@fobbitoperator3620]

Best body style of any pickup on Earth!

[@RustnDustoffroad]

This is gonna be awesome, keep the patina, way cooler !!

[@ko1113]

If the coolant sits in the engine long enough, it tends to react with the iron (or aluminum) inside the engine. The filter is to subtract those small corroded pieces so the rest of the engine will rust less rapidly. (It's basically a sort of anti-rust system.) The coolant filters are commonly used on bigger diesel engines such as cats for bulldozers, but also on some bigger car engines.

[@coreybrown1703]

Coolant filter is for slow release of SCAs in the coolant to maintain required levels. In particular blocks prone to cavitation require correct SCAs kept up. That's be my guess for the filter. The filters come preloaded with SCAs. Is a thing with trucks, pooley would know being a cummins dude..

[@TJANDMAC]

Ahhh true !

[@OzzyFarmer75]

It is not so much a filter, it contains anti corrosion chemicals that are slowly leeched out into the coolant as it flows through. Standard fit on earthmoving and mining gear with larger engines than standard light vehicle engines.

[@wildcustomsandmechanical6528]

That 8speed will last one decent drive

[@macpreston]

I dont think it will last the dyno run haha but what we have planned for the second 8 speed will be sweet!@@wildcustomsandmechanical6528

[@macpreston]

Ah makes sence ive learnt something new!!

[@mitchharper9300]

Coolant filters prevent cavitation mate. Like the work 👍

[@christiaangrobbelaar3338]

Howzit Gents, awesome channel and prob the best build I’m looking forward to. How did you guys start out to get where you are with your shop etc, I’m from South Africa and am really keen to start the same….

[@daniellablee6682]

Terrible proyecto me encanta este tipo de videos,por mas felicitaciones👍👏👏👏👏👏🇦🇷🍻

[@TJANDMAC]

😜

[@MattysWorkshop]

Gday, I’ve been waiting for this to start, absolutely shit hit build, all the trucks I’ve drove (Kenworth, Mack, Freightliner) had coolant filters, its to catch and scale and shit floating around, top job mate, cheers

[@TJANDMAC]

Oh true ! So it’s a truck thing to have eyyy

[@thomjanson9644]

Man, gagging to hear this thing run and spool up.. 🤤

[@TJANDMAC]

Spooly boi is gonna be wild hey

[@Wr3ckit]

Finally! Can’t wait to see it get sent! Wonder if you’ll finish your engine swap and coil overs before I finish my engine swap and coil overs? 👀

[@macpreston]

Haha sounds like a race to me!

[@JamaineObah-mt6sk]

Was panicking for a moment. Thought you and macca had left us, up the Cummins!

[@TJANDMAC]

Never ! 😝 it’s gonna be a beast

[@MR-hu1bx]

Sickkkkk boiz this is that good!!!

[@sav2762]

OMG FINALLY 😱

[@TJANDMAC]

Here we go 🤩

[@crimsonstride5457]

man i cant belive youtook everything off the block to paint it lol the one thing i know cummins for is the nice factory red and black paint over every connector and wire

[@Riley.695]

Nice patio ornament Mac🧐

[@macpreston]

😉😉

[@user-pu9fh7uz6n]

Still newer interior then a 79 series hahah love the content.

[@macpreston]

hahaha legit

[@samwayne5765]

First video I’ve watched of yall, love the truck. That first scene about how impractical and overpriced those old trucks are is on point. Yall might wanna put some captions from time to time, that down under dialect is hard to pick up on for a novice. It’s ok people dont understand southerners either. From texas

[@TJANDMAC]

Great idea ! I will do for the future episodes on this build 😎

[@teejayhoward]

Coolant filter guess - They had a rusty radiator or heater core, and used it to catch the metal flakes running through the system.

[@lessworkmoreplayy]

Sitting in the engine bay is good to work on the big rig and it would be even easier without the bonnet on it…….get tj around to help lift it off 🤣🤣

[@stringer.official]

I’m frothing this build so hard already

[@blair_bsting]

New cruiser in the back there 😂

[@adventuresoflochie5557]

how good

[@andyharris1979]

might have coolant filter for when it was in america it gets really cold you might be able to turn it off so truck warms up quicker

[@SUPERTRUCKER166]

Coolant filters are pretty common in heavy vehicle applications as are things like diff oil filters etc

[@macpreston]

Diff oil filters are interesting!

[@haraldkonig8317]

I think a coolantfilter is in there to filter rustparticles from the engine.

[@macpreston]

That also makes sence! A few replies have said it conditions the coolant aswell!

[@ryanpitts9620]

u using the 8hp gearbox? if so where'd you get the bell housing adaptor made? im looking for one for similar build.

[@nathansingle9698]

You normally see those coolant filters on industrial diesels. Lot of Cummins and CAT have them

[@intimatespearfisher]

boys, I can feel a dad segment coming on. Regular side eps giving dads tips on how to camp and wheel with a miso and kids. Please start with how the camper trailer has changed things for you. TJ what have you been doing mate? Finish the job, your like 37 or something?

[@macpreston]

haha im working on him do youtubers get paternity leave tho?

[@danielthornton3277]

Are you guys going to relocate the ECU under the dash or somewhere similar?

[@user-mh9er8st5d]

Because old cast iron blocks rust internally and a filter will stop your radiator from blocking up and keep the engine cooling system running smoothly

[@FlyingSpaceOstrich]

@9:48 It's just like a usb; you have to try to plug it in both sides before it will go in

[@TingleTalesStudio-sd4yz]

Yesssssss when is episode two??

[@hamishjohnson9678]

Mate metric threads are easy to know the drill size you don’t need a chart. just take the pitch off the shank size eg 12x1.75 thread needs a 10.35mm hole, 10x1.5 thread needs a 8.5mm hole, 8x1.25 thread needs a 6.75mm hole ect.

[@ezandiffy]

cutting with plasma and doing all that work in flip flops is crazy!!! but good job guys

[@samsymes475]

Caterpillar run coolant filters along with most heavy machinery.. some say helps with keeping coolant levels.. my opinion is saving thousands of dollars worth of radiators and waters pumps if a part fails or corrosion. I'm putting coolant filter on my rig to stop blocking radiator cores if I have a good mob of shit come shooting out of the block!

[@macpreston]

Makes sence for sure!

[@4WDSKIDS4321]

Omg u guys never have a bad vid

[@TJANDMAC]

Well thank you 🤩

[@tomwhelan7901]

What's the go with the new 79 round the side of the house at 16:30 🤔 new giveaway ? 💁‍♂️

[@macpreston]

🤫🤫

[@tomwhelan7901]

I'll buy tickets if it's a giveaway my 79 due for a tip run amd just leave it there

[@jackjames1543]

Ol simo seems like a top bloke

[@macpreston]

Bloody good egg ol simmo!

[@danielminett6716]

Any information would be amazing, I’m looking to swap my 1960 ford one ton flatbed Dooley with a 12v Cummins but not too sure what to use for a transmission, rear end and front axle.

[@davegalassi2552]

Where did the adapter plates come from for the transmission and T case ? Allison

[@TJANDMAC]

8speed.au They are located in Brendale, Brisbane

[@craigjohnson7409]

Don’t forget the killer grid heater bolts see Gale Banks for these

[@macpreston]

Grid heater is deleted thats for sure!

[@turbolife5912]

the box as you call it is a ZF or a Allison?

[@Iamwilczyk]

Chevy dream car 😍❤️

[@chrisledwith3216]

Still a better love story than twilight

[@macpreston]

HAHA yes couldnt agree more 😂

[@estebandiaz3213]

Larga vida al diesel 😊

[@joshuajohnson4800]

Was that not a gear driven NP205 transfer case? Why pull that for an aluminum Toyota case? The 205 is basically indestructible.

[@BootstrapRevival]

What transmission is that?

[@HardstylePete]

Will the zf hold up to the Cummins? I know they are solid but that motor is well over its rated input torque?

[@macpreston]

We shall see, have some plans for the 8 speed

[@jonathantanner9517]

“Gained some time,” man do I understand that statement.

[@macpreston]

hahaha its hard to come by that time stuff lol

[@josephparent2226]

You need to get the banks 6.7 intake to prevent engine damage due to the grid heater!!!!

[@6226superhurricane]

you should keep the np205 transfer case because it's far stronger than the landcruiser one which i have my doubts would last behind a 1000hp cummins that would have around 1700nm of torque.

[@TJANDMAC]

Yep all an experimental process at the moment , turns out the 79 transfer doesn’t work so will be going a different route next episode 😎

[@macpreston]

Yep i agree have changed already, but unsure about the 205 being hard to get in australia

[@6226superhurricane]

@@macpreston that's why you use a 205 so you don't have to get one. you can also beef them up as well. the downside of the 205 is 1.96:1 low range but that won't be an issue with the low revving diesel and auto it'll still crawl. and these days you can get parts from usa just as quick as from melbourne or perth.

[@lazy6608]

FYI look at most trucks with a Cummins engine they run coolant filters

[@flipenloony]

What 8 speed do you use mate? Is it a zf? Just watched further and saw it’s a 8hp. All g mate :)

[@TJANDMAC]

Yep same as the cruiser , if it breaks Mac plans to replace with a fully built version 💪

[@omfgishBenneh]

Kid knows the rules, don't like the video til the end. Gotta make sure you deserve it 😂🤙

[@charlie2king]

TJ what size and offset wheels you run on your NAV???

[@TJANDMAC]

17 0mm offset 🤟

[@zakwillis6310]

Anyone else spy another house deposit in the background next to the house 👀

[@macpreston]

Could be your house deposit this year 🤫

[@zakwillis6310]

@@macpreston too much money 💰 🤑

[@nbenson243]

Where did you get the adapter plat for the 8 speed transmission and what 8hp 8 speed transmission are you using?

[@buildersofarchitecture42]

Came here for the same reason

[@TJANDMAC]

8speed.au They are located in Brendale, Brisbane

[@haydensmith6809]

I see a new 79 series tucked in the corner? 👀

[@R.Sole88109]

Mint as fuck, Legends!👍🏻 Everything is better with a Cummins😁😆

[@jakemurdock863]

The original 205 t-case you pulled out is stronger than any 79 or 80 series t-case.

[@user-lg7bi8kj9y]

"using a seat belt because we lost the chain" Love it

[@connorexcell1387]

What Tig/mig welder do you use?

[@macpreston]

Unimig mate!

[@sumnersmith8819]

What year truck is this?

[@paulw9293]

Ah someone like me...pays too much then tries to reverse engineer everything purely based on the love for the vehicle & its history! My wife thinks I'm a genius 😂. Luckily for me she's stuck with me unlike many of the poor vehicle decisions I've made over the years...i love this thanks guys! 😊 ✌️

[@macpreston]

haha thats gold! Youll enjoy this one than!

[@monsterram6617]

That trans isn't going to last behind a Cummins, even in stock form. If you're considering 1000 whp (you've got a long way to go still), you might want to check out what's behind 1000+ whp diesels; a built FMVB 48re. No need to waste time and money "experimenting" when people have already done that for the better part of 20 years and figured out what works best. A 1000 whp Cummins build is quite easy, if you know what you're doing, and there's several (Firepunk, Horsetorque Diesel, etc) who go into the details on how to get there.

[@witcher71]

Who is offering the adapters to install the 8HP to Cummins? I hope there's room for radiator. cooling fan and intercooler.