Vortec 350 L31 calibrations for the 1 meg PCM's

[Hog]

I thought I would post this here as there are quite a few PCM tuners here.

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So I have been doing some digging through GM part numbers lately and have come up striking gold. I have found some GM parts which allow the mounting of GEN 1E engine into 1/2 ton GMT800 based vehicles.

15113854 $75.95 2001-2010 left-hand bracket mounting (# 9 in the following diagram) 1 required
15113855 $90.82 2011-2010 right hand bracket mounting (#9 in the folowing diagram) 1 required

93802093 $76.64 2003-2007 Mount-engine mount(#8 in the following diagram) 2 required

I cant find info on #1 and #5 which would be complete, the rest are nuts and bolts. The above parts are also called out for GMT 800 3/4 and 1 ton HD GMT 800 trucks to mount the applicable year of Duramax diesel.
The reason that some of these parts are used into MY2010 is because in Mexico GMT800 vehciles were available into 2010.






Here is the official callout L31 - ENGINE,GAS,8 CYL,5.7L,CPI--MEXICO P96(EXPORT). So RPO P96 triggers the Mexico export options.


The Vortec 350 L31 was available in ALL GMT 800 Mexico Export vehicles with 1of 2 available manual transmissions.
RPO TZO TRANSMISSION MAN 5 SPD, TREMEC, 85MM, 3.82 1ST, 0.83 5TH.
RPO M96- TRANSMISSION MAN 5 SPD, TREMEC, 109MM, 5.81 1ST, 0.77 5TH

With this discovery, these GMT 800 vehicles with Vortec 350 implants must have a PCM to power all the fun. This means that there are actual GM calibrations for the 1024kb (1meg) PCM's. Callouts include 2003-12581565, 2006-12602801, 12602802-2004-2007. Another interesting tidbit is that these L31/GMT800 combos run the common 85mm plasric bodies MAF used in the 99-07 trucks-01-04 LS6 Vette's, instead of the GMT 400 trucks/LT!/LS! Camaro/Vette aluminum bodied 75mm MAF.
So there are 1 megabyte PCM calibrations running the 85mm MAF in a GMT 800 vehicles powered by an L31 engine.

OK fellas, there you go, if you are interested have fun.

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If anyone has any files, or info on these P96 Mexico Export calibraions post away.

peace
Hog