EST Distributor

OneSS2NV at aol.com OneSS2NV at aol.com
Fri Mar 30 04:54:39 GMT 2001


In a message to the List, Bob W. writes:

<< the reference to the 8 engine code is to the VIN.  there were two TPI 
engine
 codes in 91, one was 8 & the other F.  I think that the difference was one
 was MAF & one MAP.   >>

   In '91, the TPI engines used MAP.  If the VIN refers to an original F-body 
application, VIN 8 means 5.7L TPI, and VIN F means 5.0 TPI.  I'm using a VIN 
F ecm/wiring from an '87 IROC (MAF) in my '85 Monte SS.  
   According to 1987 GM F-body wiring diagrams, it appears that the harnesses 
are the same for 5.0/auto and 5.7/auto; just the chip and injectors are 
different.  1987 was also the first year of the divorced coil from 
distributor as well in the F-body.  I don't know if this pertains to Y-body, 
because of packaging issues?

     Hope this clears part of the puzzle up.

       SSeeya,
          Steve Ragusa
           North Jersey
        '85 TPI Monte SS
          '96 Impala SS
     www.bowtiepower.com
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