H3 2007 - Barra swap , worth it?

[Guricha]

Hello everyone,
going to figure out and swap Barra engine in H3, looking some information from u guys, how good is stock gearbox from H3? i mean should i think about gearbox conversation also ?

 

[rascole]

I doubt it will fit, the Atlas I6 was too long and trying to adapt the Barra to the trans will be difficult. Barra is a great motor but you'd be better off droping in a LS motor and make more HP.

 

[Guricha]

Working sort out with bell housing adapter to the block, i already decide with barra so soon i will drop some updates, any information about ball housing interchangeable option? what usually people do when swapping LS?

 

[rascole]

The Ameri-Barra is a bad MFer. If a I6 can make 800+ the I5 should be 650+. If you can come close to what this guy is doing, you'll be a star. But do it with the 3.7.

 

[Guricha]

guys does anyone have gearbox bolt pattern drawing?

 

[atvspeed4]

There are several companies that sell adapters for that engine to 4l60, 4l80 and other GM transmissions. No need to invent anything:

FABbot Barra To LS Transmission Adapter (Ford BA, BF & FG 6 Cyl)

The Ford Barra engine is nothing short of impressive and unique. So we decided to create a transmission adapter to match. This adapter will turn the back of your barra into an LS and allow you to run any Chevy LS auto or manual transmission ranging from a powerglide, 4l80e, tr6060, t56...

www.fabbotfab.com

 

[Guricha]

Thanks for reply
I have checked already but bellhausing from h3 is different different type even it is 4l60. Yes i can buy regular belhousing fron ls and change it on my transmission but wanted to have bolt on to exactly hummers gearbox

 

[Guricha]

Here is my drawing finished today neet to cut sample and later make it on cnc machine, design i can change later after checking and measuring

 

[Guricha]

No idea if anyone done this before but here is my own adapter to stock H3 bell housing

 

[Guricha]

Looks like right place for barra like own place

 

[Guricha]

Hi guys
does anyone tell me what can bus protocol h3 uses? i want to have stock instrumental panel worked
Thanks

 

[Ridinhigh1500]

What year is your H3? The P12 PCM in the 2006 is completely differnt from the PCM in the 2007 and newer. I know in the 2008 to 2009 Trailerblazer the PCM went to speed density tuning. I doubt you will find anyone who knows. But your best bet is to send a guy named Calvin a message his website is https://www.paccracing.com/ and his youtube is Nivlac57. There is also another guy in NJ that runs LOJ conversions he might could point you in the right direction. They make LS swap kits for 240 and 270 Z cars and make the CAN Bus from the GM ECU talk to the factory Nissan dash. That way everything on the dash works like stock.

 

[Ridinhigh1500]

The Ameri-Barra is a bad MFer. If a I6 can make 800+ the I5 should be 650+. If you can come close to what this guy is doing, you'll be a star. But do it with the 3.7.

There is people starting to mess with the 5 cylinders. They also have a bad rep for absolutely no reason. There is a guy in Michigan that will upgrade the 5 cylinder heads for like $1,300. He will port and polish it and put in bigger valves with heavier springs and re surface the head. https://www.skunkworksports.com/ Also Calvin and his dad are making big waves in the drag and drive community with there 4200 builds. All there 4200's have run 9's in the quarter. Even 1320 video has covered them a little bit. So give it some time but there will be a lot of performance parts coming for the Atlas engine family.

 

[Guricha]

What year is your H3? The P12 PCM in the 2006 is completely differnt from the PCM in the 2007 and newer. I know in the 2008 to 2009 Trailerblazer the PCM went to speed density tuning. I doubt you will find anyone who knows. But your best bet is to send a guy named Calvin a message his website is https://www.paccracing.com/ and his youtube is Nivlac57. There is also another guy in NJ that runs LOJ conversions he might could point you in the right direction. They make LS swap kits for 240 and 270 Z cars and make the CAN Bus from the GM ECU talk to the factory Nissan dash. That way everything on the dash works like stock.

Thanks for your reply
Actually project is running already) just few things need to be done. With dash instill have problem coz cant use factory one.
If u can give me more detail aboit tis guy will be appreciate for that

 

[Ridinhigh1500]

The guy in New Jersey that does all of the GM CAN Bus stuff is https://www.lojkits.com/