6.1 or 6.4 hemi conversion - where to go?

[Dsk02]

Hi guys,
Have a 2011 JK and wanting to do the 6.1 or 6.4 vvt hemi conversion with manual transmission.
Any advice on which, and in particular - where to get this done. Looking for a company to manage the whole process with engineering certificate. I'm in Vic but happy to get it done elsewhere if required.

Thanks in advance

[Pete_m]

Think Jeep konnection may be the guys for you, not sure about a manual gear box haven't seen that done, but that doesn't mean much.

[flexytj]

ring jeep konnection

[Dsk02]

Went to see jeep konnection over weekend, they had done 4 before in 5.7 but hadn't done any 6.1 or 6.4 or manuals, and werent 100% on if thry could.
Don't just want to go to the first place I come across, there must be other companies?

[Richo]

Jeep Konnection.
No one else in Vic has done anything near it. If anyone will do it for you, they will, even if it takes a while to sort all the minor issues.

I believe your only other point in Australia with any JK V8 experience would be Hammonds in Brisbane.... Happy to be corrected though.

Budget $30k for the engine conversion, then another $20 k for diff upgrades. And that's with full drive in drive out engineering Vic Roads sign off, not a backyard special.

As far as back yarding it, have you looked at the size and complexity of the wiring looms? Good luck.

[Nudge]

Contact http://burnsvilleoffroad.com/

they can sell you a kit to do the conversion you want.
And they've done plenty of them with manual's

[037981]

in my opinion a ls is a far better engine in Australia you can get parts cheaper and quicker than if you were to get a hemi and the GM LS is cheaper to do the conversion it more light than a hemi you will have better fuel economy not that this bothers you If it does a 6.2LS stock is over 400HP. Is gas mileage important? Because of modern day electronics a LS motor with AFM (drops to 4 cylinders
It's what I would do if I had the money Just another option

http://www.lswrangler.com/

[Will239]

I dont understand the reasoning for such a big engine also?

The big hemi's have to have the worst power / displacement ratio around. i also think an LS engine would be better all round. Or take a 2012 pentastar engine and supercharge it?

[taskmaster]

Hi guys,
Have a 2011 JK and wanting to do the 6.1 or 6.4 vvt hemi conversion with manual transmission.
Any advice on which, and in particular - where to get this done. Looking for a company to manage the whole process with engineering certificate. I'm in Vic but happy to get it done elsewhere if required.

Thanks in advance

Sell yours and buy this.....

http://www.jeepkonection.com.au/products.asp?cat=62

If I had the $$$$$......

[Drake10]

AEV do a kit for the 6.4 (Jeep Konection being a dealer for them in AUS)

http://www.aev-conversions.com/shop/shop-by-category/powertrain/jk-hemi-kit.html

But they usually bolt up to the Autos. I have heard of someone doing a bolt up Getrag 238 that was sourced from the US but it was for the 5.7 and I am not sure if it can handle the extra torque of the 6.4.

[king bogan]

Burnsville use the getrag for the 6.4 as well, can handle round 600hp from memory. Not too many manual transmissions can fit without cutting up the trans tunnel.

Hemi worst power to displacement? So the 6.2 puts out 400 but the 6.4 puts out 500...doesnt seem to bad to me

first what's your budget? Its just over $30k to get all the parts here, ls wrangler is a bit less through requires more figuring out. Then you need Dana 60's, another $20k. Then to install it by someone else??

I'm doing one myself its not that hard. I'm no mechanic either
I'll be doing a thread soon so you can follow and ask questions
If you want a manual both engines are good if you go auto then definitely chev

[greenjk]

Sell yours and buy this.....

http://www.jeepkonection.com.au/products.asp?cat=62

If I had the $$$$$......

A good mate of mine took this for a run recently and was very impressed.

[Dsk02]

Have driven the blue 5.7... It's good, but a few extra cubes wouldn't hurt.

I wasn't aware Dana 60's were required, I'll call jeepkonn hopefully they're not required on the 5.7.
Budget wise this has an impact at $50k. If the danas are needed on the 5.7 I may as well do the 6.4. Otherwise the 5.7 would be the answer, purely due to price.

Have emailed Burnsville but yet to receive reply. will keep posted

Thanks, look forward to seeing the thread, that's a hell of a project to do yourself, good luck!

[josh jk]

if d60s are needed for the 5.7 then my dreams are shatterd haha, ive begun saveing for the 5.7 conversion

[Richo]

Bigger stronger diffs arent required, unless of course you actually want to drive it......With bigger tyres (or even not) the torque of either V8 will destroy the standard D30 front, and axles and unis in no time. A rubi front 44 would stand a better chance.

If you are prepared to drop that much coin in doing the engine, and happy to drive it like a pussy everywhere, you may get by. But what would be the point?

If not, factor in diffs.

[yetiboy01]

I have no trouble twisting the 44 axles on my JK with the stock engine, hate to see them behind something with something with a bit of torque, they would snap like carrots with a blip of the throttle, you can expect the carrier to explode as well


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[Weekend4WD]

Give Henry at Pro Comp in Vic a call, their JK is a 2011 with an AEV fitted 5.7L HEMI. They had it fully engineered and registered with increased 750kg GVM. Its fitted with 37s and is currently on sale.

In Brisbane CRDSTU at Murchinson Products is also an AEV supplier fitting HEMIs - he also has engineering options.

If you're after diesel engines (you're not, but others may be interested), Stu is currently running a 4.7L inline 6 in his Brute.

Personally I'm looking at the Ford 4.4L V8 Turbo Diesel (246kW & 700Nm). Was originally built for F150, but GFC put an end to its debut in 2009, now its running in the highend Range Rover series mated to the new ZF 8HP70 8 speed automatic - excellent power and economy.

I don't know if the diesel V8 will fit into the 2012 Wrangler, but I'm doing my suspension and D44/60 as first engineered upgrade, so have a bit of time to research more.

[greenjk]

Give Henry at Pro Comp in Vic a call, their JK is a 2011 with an AEV fitted 5.7L HEMI. They had it fully engineered and registered with increased 750kg GVM. Its fitted with 37s and is currently on sale.

In Brisbane CRDSTU at Murchinson Products is also an AEV supplier fitting HEMIs - he also has engineering options.

If you're after diesel engines (you're not, but others may be interested), Stu is currently running a 4.7L inline 6 in his Brute.

Personally I'm looking at the Ford 4.4L V8 Turbo Diesel (246kW & 700Nm). Was originally built for F150, but GFC put an end to its debut in 2009, now its running in the highend Range Rover series mated to the new ZF 8HP70 8 speed automatic - excellent power and economy.

I don't know if the diesel V8 will fit into the 2012 Wrangler, but I'm doing my suspension and D44/60 as first engineered upgrade, so have a bit of time to research more.

I think you'll find the 4.7 in Stu's brute is a stroker version of the original 4.0 petrol engine not a diesel.

[Weekend4WD]

I only spoke to him briefly the other day ref the 4.7, I thought he said it was a diesel.

He did say it was a stroker so that does make sense.

[greenjk]

I only spoke to him briefly the other day ref the 4.7, I thought he said it was a diesel.

He did say it was a stroker so that does make sense.

The strokers are known for lots of torque, maybee the reference was "torque like a diesel" I'm not sure.

[Dsk02]

Ok so the d60's aren't required for the 5.7, but are a requirement if you're wanting an engineers certificate on 35 or 37 inch tyres.
From the feedback here and other reading the consensus is that you can get away with it but run a risk.

Looking into the 5.7 truck engine as a compromise, will post info as it comes to hand, also re the manual.

Will also give Murchinson a call.

Cheers

[Blue Fin]

I have no trouble twisting the 44 axles on my JK with the stock engine, hate to see them behind something with something with a bit of torque, they would snap like carrots with a blip of the throttle, you can expect the carrier to explode as well


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D30s don't seem to snap like carrots on the CRD - torque is on par with the 5.7L hemi.

Upgrade later/when they grenade, unless you have the $ to burn & want the diffs engineered all at the same time