'98 Vortec 350 - Good swap into a Jeep?

[Squash]

In the 1996 model year (trux):

5700 vortec introduced.
7400 vortec introduced (later than 5.7L).

In 1999 model year (trux):

The new small-block (LS1) vortec engines are
introduced (4.8L?, 5.3L, 6.0L).  The 7400 still exists
in 3/4 ton and 1 ton trucks. 

sQuASH

--- Ward <wspoonemore at excite.com> wrote:
> OBD II is musch more complex then the basic engine
> managment stuff, the fuel
> tank, exhaust system, misfire sensing are way to
> comples to dismiss in a
> conversion into an older platform.
> 
> My Vortech, (A L31 Engine) has a Edelbrock 3505 TBI
> to PFI conversion, (see
> Edelbrock.com). The top is based on the Edelbrock
> 3502 TBI to PFi package.
> this uses all the original 1990 sensors supplied
> with the origninal L05 5.7l
> engine. This includes the distributor and 1227747
> ECM.
> 
> You may also elect to modify a early style intake to
> fit the new bolt
> pattern.
> 
> Judjing from some of the comments on the list,
> people may be unaware of all
> of the "Vortec" motors. All truck motors are now
> know as "Vortech". The 5.7l
> is the L31 and is used in 99 Tahoe's and Suburban's
> as a base option. In
> total I think there are 6 or 7 truck motors in MY99.
> 
> This is simalr to the confusion about the different
> L05 5.7l engine
> manufactured 87 - 95, they come in two types,
> standatd duty and heavy duty.
> The HD version is found in trucks over 8500 GVW,
> (upper end C/K2500 and
> C/K3500's). The HD motor is down about 20 HP due to
> lower compression ratio
> etc. 
> 
> Ward
> 
> 
> 
> 
> 
> 
> 
> On Wed, 7 Jul 1999 07:09:30 -0600 , Simpson, James H
> wrote:
> 
> > Ward,
> > Can you elaborate on "the OBD II stiff"?
> > 
> > Jim
> > 
> > -----Original Message-----
> > From: Ward [mailto:wspoonemore at excite.com]
> > Sent: Tuesday, July 06, 1999 7:01 PM
> > To: gmecm at efi332.eng.ohio-state.edu
> > Subject: Re: '98 Vortec 350 - Good swap into a
> Jeep?
> > 
> > 
> > Idon't think you want to do all the OBD II stuff
> that the 98 PCM
> requires,
> > my 90 C25 P/U is running a 99 Vortec with the OEM
> 1227747 ECM, runs very
> > well with appropriate calibration adjustments. 
> > 
> > Ward 
> > 
> > On Tue, 6 Jul 1999 11:48:04 -0600 , Simpson, James
> H wrote:
> > 
> > > Hi,
> > > 
> > > I'm doing a engine swap into my '81 CJ7.  I have
> found a '98 Vortec 350
> > with
> > > only 8000 miles on it.  My question is this: 
> Does this "Vortec"
> computer
> > > system require a transmission with electronic
> controls?  I plan to use
> a
> > > TH700R4 ('93) with no computer controls.  Is
> there anything else I
> should
> > be
> > > aware of with the Vortec system?  Does this
> engine use a mechanical
> > > distributor?
> > > 
> > > Thanks in advance for entertaining my questions.
> > > 
> > > Jim Simpson
> > > James.Simpson at Unisys.Com
> > > 
> > > 
> > 
> > 
> > 
> > 
> > 
> >
>
_______________________________________________________
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> 
> 
> 
> 
> 
>
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