i have 03 qc 4x4 that is in need of a new motor, the new hemi is about 10,000 dollars or 16000 for a big block 426 have you guys seen a fuel injection system for these big engines or is there a way to make my old injection system run the bb hemi i think i would be more fun off road than the small hemi so carb just wouldnt be cool thanks for any advice.

 

I'm just curious why in the world your 03 would need a new engine??? What happened?

 

I would doubt that the intakes would mate up between a new hemi and a big block.

Have you thought about emissions issues?

 

It appears that you are interested in building some big power, and if so, you might be money ahead to rebuild the engine that you have now, assuming that it is a 5.7---you didn't say. This would allow you to use the current drive train configuration already there.
You might consider something like a supercharged stroker engine. This would most likely require a piggyback FCM for the engine too. Plus you must also consider the entire drivetrain, all the way back. I'm sure that B&M could probably set you up with a clutchflite package in a multiple disc config---you would need to add the clutch pedal linkage, and oh yes, the torque management would go away.
Or you could start right from the git-go and build a turbocharged engine, but once again, piggyback FCM, and full drivetrain build up. Once your done, the money is gone, and the resale value isn't really there either, so this better be something you want to keep for a long time.
You might also consider just getting crate motor to keep you wheeling, then use the engine you just pulled to build some serious power. This way you can take your time with the build, and you have you truck to haul it where necessary for the machining and such.
You might also consider the newer 6.1---same block I do believe, then use the newer injectors for the 6.1 with your current FCM config.
A lot of different ways to go---just how much you want to spend versus the results you are really looking for.

 

You could try and get the complete 6.1L Hemi engine. I think it has been put into the ram's.

 

find the 6.4 liter

 

Probably could be done but probably cost atleast 15k after every thing is done.

 

The BB 426 wouldn't bolt up to your transmission, regardless of you getting the fueling right.

The 5.7L HEMI has a small-block bellhousing pattern, and as far as I know, there are NO big block transmissions available for the 3rd generation rams...or even the 2nd generation Rams.

 

they havent put the 6.1 in any truck yet. i have the same question dodge4lifefan has, why would your 03 need a new motor? Unless you beat the crap outta it.

 

There has been a 6.1 in a Ram for a while now. The problem of putting the 6.1 into a Ram is finding a 6.1 engine because they are on restriction from DCX and currently they have none in stock.

I am having one built into a 6.8(413ci) engine that will be able to handle some boost.