4bt Hummer H3 walkaround

[@81284user]

Averaging right at 20mpg in highway driving. City/mixed driving hardly ever below 18. best tank was 22.4 in interstate and back road driving around 65. I have regeared to 4.10 from the factory 4.56 and that helped the mileage a bit. still working on some tweaks and an intercooler in the future to hopefully get up to 22 consistently.

[@Gabriel.4190]

Casey Simon would a dealership even attempt to repair this if you were looking to do that

[@mikefoster6358]

What is your current MPG with the 4.10? What state are you in?

[@trysr1505]

We need a update on this fantastic build.

[@andrewgreaves2687]

Any updates on this thing? One of the coolest builds I’ve seen in awhile. Good job man!

[@81284user]

The mileage numbers are on 35" mud terrain tires as well. :)

[@81284user]

Motor mounts are a custom piece. Beta test units can be available for the asking. Haven't worked up pricing yet. The other brackets for using some of your factory accessories will be available soon as well. Motor mounts utilize the factory perches, no welding is required. Mounts put the crank centerline, engine mount angle, and bell housing face in the factory location

[@edwardhawran9406]

Is it necessary to supply the ECU with a signal resembling cam or crank from the 4BT to have factory oil pressure, engine temp and speedometer indicators work?

[@austinrodrigues2160]

Do you have information I can contact you or a website to reference your products? Very impressed. However my truck is a manual transmission, is this possible with a manual?

[@Rock-jt5vk]

How can we contact you for parts

[@bearosborn]

I've been dreaming of this swap and a quick Google search, this popped up. Very impressive sir! Love my h3, dislike the i5

[@trevorsabatine17]

Have you put together a mount and bracket kit, I would be interested.

[@johnnyk5]

You mentioned the width and height compared to the i5, how does the length compare? Is there more or less room between the radiator and the front of the engine?

[@TestBenchRRCo]

For an 06 that is spotless! I have an 06 as well

[@smallcarguy]

great build man. Your 4bt awesome!

[@Kwalafied42]

Love what you did with the throttle body. Permanent or not it’s a very good idea.

[@russkielol]

Thank you so much for this walkaround!

[@modelfreak125]

I bet the traction fault message is from the two wires from the pcm to the abs for engine torque did you forget to pull those out of the stock engine harness? If your stand alone trans controller is separate from the p12 pcm then flash the p12 for a manual transmission. Lovely swap, exactly what I thought of doing for the throttle, and tach, cruise should work this way too?

[@HanksDeuce]

Thanks for the walkaround video Casey. Never figured you for plaid shorts though. :)

[@maloy331]

damn. . sweet and clean. . thought the mpg would be little better though

[@romanroman1975]

Beautiful conversion!

[@jacobanthonyepstein]

Casey Simon, I just had the motor in my H3t. I really want to put a 4bt in but can't find any motor mounts to buy. I've been following your build for a few years now and am extremely impressed. I'd really like to talk to you about your motor mounts. I'd be happy to compensate you for your time as well. Thank you Jacob

[@jesusuribe1622]

Regards. I would like to do the same adaptation but I want to know what type of transmission you used and how to adapt the engine mounts

[@jesusuribe1622]

Regards. I would like to do the same adaptation but I want to know what type of transmission you used and how to adapt the engine mounts

[@rgvpaintballing6287]

Cool video man. thanks for posting. currently looking for one of these engines to swap the i5 on an H3T.

[@anthonyvu749]

RGVPaintballing have you found an engine looking to do the same with mine

[@Rock-jt5vk]

Been looking to do this swap. What did u need to get. Motor mounts and that sort the f thing

[@Rock-jt5vk]

What did you have to do for motor mounts

[@josepadilla7981]

does it respond pretty good as in overdrive is it lazy due to 4bt are low in horsepower from the factory. going into the on ramp of a interstate lets say you get on it, does it falls on its face or it goes strong.

[@manuelpiney7876]

Hello nice modification I have a question how you control the transmission shifter or what sensors do you have to swap ? Thanks

[@onlymans165]

Wow that’s pretty sweet!!!!!!!

[@Rhouzv]

This. Is. Awesome! I'd love to ditch this junk 3.5 and drop in a diesel. Do you still have the motor mounts to sell or are they able to be bought from a supplier? Also does the stock trans hold up? I've heard they don't like all the low rpm torque those motors put out. I was told to look for a 6l80e so that I wouldn't be maxxed out on rpms and would be able to run highway speeds

[@BadlandIndustries]

Casey would you be willing to remanufacture the motor mounts for compensation?

[@jordanwilliams1079]

How much would you cost to this to my hummer h3 I am very interested.

[@NewRoad]

awesome project! would love to have it done on mine

[@Chance21]

Humman Off-Road Adventures have you seen the new kit Cummins is coming out with? It's called Cummins re-power they have a 2.8 turbo diesel engine with all the wiring. I think it comes out in September of 2017

[@NewRoad]

This is first time I hear about it. Do you have source of info?

[@Chance21]

Humman Off-Road Adventures cumminsengines.com/repower.aspx

[@81284user]

I haven't seen pricing on this yet. My guess is the engine plus ECU will be well north of $10K, but I could be wrong. Also with computer control, you are stuck with that base tune until if and when someone comes up with a tuning solution. The power numbers for this engine are a bit on the weak side if your vehicle is closer to 6000#.

[@Chance21]

Casey Simon Yeah the numbers aren't what I want then to be, but they're coming out with another engine soon too. The survey is still up, I believe, to put in your 2¢ about what motor they build next. It's at the same website. On a KZbin video with the guy in charge of re-power he said the brand new engine with the wiring harness would be 10k or less.

[@ChurchieShed]

Very nice work!

[@thomaslaurick1050]

Ever add an intercooler?

[@UA-VET]

Did you have an issue with the oil pan fitting? I'm doing this swap and we are trying to figure out if the oil pan will need ro me modified or if we need to lift.

[@TheGamingPotato-lf9ec]

Are you still doing this 4BT swap for the Hummer H3 ? I have a 2006 H3 I would like to do this also because the original 3.5 Atlas engine is giving me problems burning oil.

[@leogomez2638]

You think I’d be hard to ls swap a hummer h3 like this

[@nofear_FZ]

I really hope your account is active because I am I the process of acquiring information of doing this swap and you're the best person to come to for this info. My engine just recently blew In my h3 and this is the best cost effective alternative for better gas mileage. By any chance could you reply or maybe message me so we could talk about your build? I'm just trying to build info and know what I need to buy and do to make it work right and your the best place to go to right now.

[@dmac2269]

mtjulietairsoft I'm right there with you! I was told they didn't last very long because of it being an aluminum block and that's why they are so expensive to replace back to the factory i5. If you find a way to get ahold of him please please please let me know!

[@81284user]

You can see a build thread at www.4btswaps.com/forum/showthread.php?27760-2006-Hummer-H3-Build-Thread&highlight=hummer+h3 I have patterns on all the motor mounts and brackets and can get a beta set fabbed up and priced out for you if and when you are serious about proceeding. Check out the build thread, there was a good bit involved getting everything figured out, but now that its done, it wouldn't be too bad to do a second one. Build uses factory drivetrain but you will have to open your transmission to change the input shaft and bellhousing.

[@dmac2269]

Casey Simon I'm in the process of getting it started now. I know this may be a silly question but were you able to keep the factory wiring harness?

[@81284user]

The factory harness is mostly retained, but all the unused connectors were cut back. The harness retains stuff like the crank angle sensor (used for the tach) coolant temp, AC clutch, and throttle body for my DBW implementation.

[@phillipfolkes4975]

Casey Simon Casey, is this a build I could pay you to do to mine? I’m very eager and interested!

[@russkielol]

What bell housing did you use? And where can I get the motor mounts

[@williamanderson1736]

that's a great job. What kind of fuel mileage are you getting?

[@nicholaslandolina]

This is awesome

[@erikkovacs3097]

Uh oh. Check engine like. Probably should have that taken a look at :) But seriously what are the codes? You could just hook all the old sensors up to the cummins and the old ECU should be happy and so will your tcm.

[@seanjones7112]

Tryna do this to my h3t it’s v6 need assistance

[@MsJosmany]

Which Cummins is it?

[@chazlabato6557]

what did you do for motor mounts?

[@overgromatic5865]

How much would this cost?

[@sergeysolomatin5369]

Diesel engine?! YES !!!

[@bennythepilot809]

How hard was this?

[@michaeldc9965]

Is there any way to contact you I'm really want to do this and have a supple questions

[@NeilKudro]

If you dont mind me asking, how much did this swap cost money wise? Thanks

[@supremeautomotive6749]

It about $10000 for everything you need then you have to get it done

[@H3Duramax]

Nice. I get 31 mpg on my Duramax 06 H3

[@Breakn28]

how is that possible

[@H3Duramax]

@@Breakn28 Diesels are more fuel efficient. The h3 is light compared to a 2500 or 3500. The front driveshaft, cv axles and differential had to be removed to fit the diesel swap. It has good tuning. I was putting $10 a week in diesel to get to work and back drive around. Compared to my f150 that was $10 a day. Now I’m almost done with a Dana 60 swap and suspension. So I’ll see where she will be mph wise when it’s done.

[@N0M4D_22]

@CaseySimon Would a 5.9 24v fit on these h3’s?

[@UA-VET]

No. You would have to extend your frame out or dog house the motor

[@patriciomunoz2830]

Now this is interesting

[@VILLALEO]

hp?

[@Runningnthe90s]

if you ever sell this i will buy it.

[@morganmom22]

Hi Casey! I have some questions that need answers! My husband is doing this swap and needs help! Contact me if you can!

[@mmjnice97]

God I would love to do this to my h3t.. Anyways Check out my lifted h3t

[@whiteie3.2]

how much did all of this run you

[@81284user]

About $11k. With a $3500 zero hour rebuild engine. Total cost will depend on initial cost of the engine and the quality of parts you put into it. You could do the total project under $10k if you pick carefully on parts and do most of the work yourself.

[@whiteie3.2]

okay final question what hp and torque are u running

[@brandonsouthwick4868]

Have many questions if you have a contact info

[@lizb.3876]

I don't think u can sponsor my friend

[@lizb.3876]

But if u could I would love if u do

[@lizb.3876]

What do u need my phone number for???