Well I guess the intake manifolds are the same:
Take from the WJ website:
Standard 4.7L V8:
P/N 53013403AC (2004)
HO 4.7L V8:
P/N 53013403AC (2004)
My 2004 Dakota:
P/N 53013403AD
2004: HO Manifold P/N 53013403AC is superseded by HO
Manifold P/N 53013403AD. Very slight non-performance
changes from 2003 version. Used in both standard 4.7
and 4.7 HO engines for model year 2004.
Well, that just saved me some time, money, and
effort!!
Now time to verify if the cams will be different.....
--- "Bernd D. Ratsch" <bernd@dodgetrucks.org> wrote:
>
> The cams do make a difference in the engine's
> performance. You can get
> close to the HO engines performance with a
> programmer for the non HO
> engines. (Superchips for example)
>
> The timing curve is more aggressive in the HO
> engines but not a huge change
> in injector PW% (fuel delivery). As for
> compression, you can use selective
> MLS head gaskets to change compression on the
> engines (not by much...but it
> helps - done that already on a few 4.7L's in the
> shop).
>
> - Bernd
>
> -----Original Message-----
> From: Kyle Kozubal [mailto:solocamxt@sbcglobal.net]
> Sent: Wednesday, October 17, 2007 8:20 PM
> To: dakota-truck@dakota-truck.net
> Subject: RE: DML: Many 4.7L V8 HO Conversion
> Questions.........
>
>
> So what about the cams?
>
>
> --- Ray Block <bpracing@worldnet.att.net> wrote:
>
> >
> > Now if Kyle had read the link I sent him he would
> > already understand why he
> > got that answer. The HO and standard 4.7 intakes
> > were one and the same in
> > 2003 & 2004.
> >
> > Also there's a lot more contributing to the HO's
> 30
> > additional horsepower
> > than just cams and intake. Things such as
> > compression ratio, valve springs
> > for higher rpm, air box, and PCM programming....to
> > name just a few.
> >
> >
> > > -----Original Message-----
> > > From: Kyle Kozubal
> > >
> > > More info from Gary:
> > >
> > > "The HO manifold and HO cams would not be a
> > worthwhile
> > > investment and upgrade on your 2004 non-HO 4.7L
> > motor"
> > >
> > > Wow.......
> > >
> >
> >
>
>
>
>
This archive was generated by hypermail 2b29 : Thu Nov 01 2007 - 00:07:06 EDT