[Torque Monster]

04.5 went to the high output version.

False info, the 03 cali was a 235hp edition truck and anything other than that 03-04 that had the 250hp motor was the SO, the 305hp 03-04 was the HO motor in the series, every motor in the 04.5+ series went to 325hp there is no HO motor for the 04.5+ series although they did change the TQ ratings on the 05's+ from 600ft lbs to 610 ft lbs (i believe thats when they changed it), other than that they are all equal. The 2003-2004 Trucks have 2 injection events and the 2004.5+ have 3 injection events. The 2004.5+ is an awesome motor to get power from if you are going to just throw a tuner, exhaust, and CAI on it and be done with it, The 03-04 are not as responsive to tuners as the 04.5+ due to the 3rd injection event in the 04.5+ trucks, when ran with tuners they run hotter than any 03-04 which cause melting issues, also the 03-04 had weak valve seats and common injector probs, but the seats only drop when under High Heat. Which in an 03-04 getting it hot with the proper mods is not easy to do. Also the 03-04 get better mileage due to the fact that they only have 2 injection events rather than 3, such as 04.5+. The 03-04 have a mechanically controlled wastegate, whereas the 04.5+ have an electronic wastegate. Also like I stated before, the 03-04 are not as responsive on tuners as 04.5+, but when the 04.5+ reach 800-900hp they stall, there has not YET been an 04.5+ truck (325) that has reached 1000hp+ on #2 only. The 03-04s can and do, do it.:thumbsup: Anything else just ask


Eric Brown 1138HP #2 only 2004 305/555

 

[Torque Monster]

So it's false info that the 04.5's had more horsepower than the 03-04's?

I did not say that, the 04.5+ do have a higher factory HP and TQ rating, I was stating that the 04.5+ is not the HO for the CR in general it is a different series. In a sense I guess you could say it IS the HO CR, but..since the motor belongs to a diff series of CRs I do not see it that way, forgive me if I confused you

 

[Torque Monster]

Maybe I shouldn't have called it a high output version, but there is a difference in power ratings.

There is most deff a diff, also the 03-04 had a WHOLE diff tuning software than the 04.5+ thus this is why the tuners are more responsive on the 04.5+

 

[Torque Monster]

No you didn't confuse me. I understand the difference between the versions. And I've seen Erick's truck firsthand, so I know what a 305 can be built to.

The point being, the OP wants to know what the difference is between an 04 and 04.5. And it's the factory power ratings - in addition to things you listed.

I covered most of them, if he has anything else he can ask, I will do my best to answer.


Never met eric, but I have read alot about the rig, it is nasty, I hope the 6.7 and 5.9 end up dominating the 6.4s and Lmms, I heard there are some 6.7s getting past 800hp, is this true? If so w/o spray they are ahead of the 6.4L, but in Febs edition of DPM there is an LMM GMC that has 1200hp Pisses me off, I am a Diehard Cummins fan, and hate to see the LMM or any truck surpass it (cummins)

 

[Torque Monster]

2003 S.O. Federal Emissions: 250HP/460lb.ft. Available with NV4500 or 47RE
2003 S.O. Calif. Emissions: 235HP/460lb.ft. Available with NV4500 or 47RE
2003 H.O. Federal Emissions: 305HP/555lb.ft. Only available with NV5600
2003.5 The 47RE was replaced by the 48RE automatic transmission and available with the H.O.

2004 S.O. Calif. Emissions: 235HP/460lb.ft. Available with NV4500 or 48RE
2004 H.O. Federal Emissions: 305HP/555lb.ft. Available with either NV5600 or 48RE

2004.5 (50 state legal) 325HP/600lb.ft. Available with either the 48RE or NV5600


Now the question is, why is this in the 6.7 section??????

Nice, where did you find those??


I didnt even notice this being in the 6.7 sec Oops!

 

[Torque Monster]

Thanks, I saved it on the COMP:thumbsup:

 

[Torque Monster]

Well I hit the nail on the head with my post earlier:thumbsup::rof

 

[Torque Monster]

Yes, 2004 had SO and HO. 2004.5 only had HO's

Dually, in all honesty which was your fav of all the CTD motors you have owned?

 

[Torque Monster]

$10 says the 6.7 . . . watch lol

I bet he says 12V

 

[Torque Monster]

As far as modding goes, my 2005. I loved the sound of the straight pipe. As far as stock power goes without adding anything I would NEVER go back to a 5.9. And personally I wouldn't wish a 12V on my worst enemy LOL

LOL why not, most are freaks about the ole 12V

 

[Torque Monster]

You gotta remember, when I had my 12V's there wasn't as many people building them the way they are building them today. There wasn't many guys racing CTD's back in the 90's. You can thank the internet for as fast as guys are running today

Very good point, I overlooked that

 

[Torque Monster]

Also remember, back in the 90's the only guys that had CTD's were guys pulling heavy. There was no "cool factor" in owning a CTD back then. This is what I was pulling back in the early 90's

Damn, I was born in the 80s HAHAHAHArof:rof

 

[Torque Monster]

Thought I heard something about valve seat dropping under high egt

in 03s an 04s yes, but until you get some $$$ it wont happen, you would basically have to try on purpose to drop a seat, dont get the 04.5+ jmo they run very HOT, and mileage isnt as good as 03-04, plus 04.5+s pistons melt alot easier, just my.02 either way it is a cummins

 

[Torque Monster]

this is 100% truth, the seats in my truck are absolute garbage lol

BUT, for the price difference, fuel economy difference, and durability difference, get a early 04 and put new seats in it

He thinks good ^^^^ He also chose the better engine:na: