is it the 04.5 ram that is rated for 325 or did the 04 rated for that also? i trying to find a 04.5 and up ram but cant remimber the differences between the 04 and 04.5. thanks for any help!

 

03-04.5 - 305hp 555
04.5 - 325hp 600
05-06 - 325hp 610

On the 600 engine normal numbers are 270hp to the wheels. (+ or - a little)

Someone correct me if I'm wrong...

 

Also, the 03-04.5 engines run alot cooler and get much better fuel mileage. It does take more $$ to get the same power output of them compared to the 04.5+ engines... if that is your goal.

You'll notice alot of the new trucks are making good numbers without aftermarket injectors.

 

I'm lookin to trade in my 2 genetation for a new one, what year would be the best to buy. I don't care bout fuel milage or nuttin like that just power. and what combo would work best to get 550? I know twins would be the easiest

 

Im real close to that number with what I have, I should be there with the headwork and injectors that I plan this winter. And still excellent towing machine
Kevin

 

The 600 series motor will reach 500+ a lot easier than than 305/555. As for rear wheel hp. Yes it probably is 270 on a 6 speed. But the auto robs about 80hp so the are about 245 rwhp

 

I've seen autos dynoed at 260 with the 600s. What's weird is my 305 dynoed at 275.

 

Stock with the 48re......mine dyno'd at 280 hp/528 tq.....Dynojet.

Stock with AFE stage 2 and Magnaflow it was 277hp/547 tq...same dynojet a year later.

Added Smarty on level 5 and it is now 397.5/ unk on tq number

Transmission is all stock....but hopefully for not to much longer.

 

mine dyno'd at 348 with a bullydog pp, 4" MBRP and K&N FIPK, and a really really weak tranny. It was so weak that the dyno operator had troubles getting a good number.

Kevin