LS series PCM mounting

[68 short step]

ive gotten a few questions on where/ how i mount my PCM for the LS (4.8 5.3 5.7 6.0) engines.... i use the factory truck PCM mount, cut off the backside (so im left with a box)....then i make some angles, one side 'rests' inside the factory notch on the firewall (the one im pointing to), this also locates it...then you can either weld the tabs on, or drill holes in them and bolt them to the firewall.....the PCM simply slides/snap in the holder, makeing for easy removal if neccessery...

[Ackattack]

looks nice

I mounted mine on a sheet metal mounting plate on the inside of the firewall.

[POPO1984]

I dont know about mounting it there. Its gonna be pretty hard to get to once engine and trans are in

[68 short step]

Originally Posted by POPO1984

I dont know about mounting it there. Its gonna be pretty hard to get to once engine and trans are in

i have it mounted there in my black truck, ive had to change the computer in it before...took all of 5 mins, and 4 of which were getting the screws loose to get the PCM connectors off.

[mcbassin]

I guess you have to have your motor mounts set just right to have sufficient clearance to access it right? Just saying, when you mount your motor in the frame, is it possible to have it mounted too far back?

Mike

[elf w/capital T]

shnnaaazzzyyy

[Robznob11]

Originally Posted by 68 short step

ive gotten a few questions on where/ how i mount my PCM for the LS (4.8 5.3 5.7 6.0) engines.... i use the factory truck PCM mount, cut off the backside (so im left with a box)....then i make some angles, one side 'rests' inside the factory notch on the firewall (the one im pointing to), this also locates it...then you can either weld the tabs on, or drill holes in them and bolt them to the firewall.....the PCM simply slides/snap in the holder, makeing for easy removal if neccessery...

Mine would not fit there for sure. Seems it would be a hassle to take out. I mounted mine on the core support under where the battery used to be and use a stock cover. It's easy to get to there. I guess if you don't have to pull it a lot it would clean up the engine bay but I choose to ste my engine rearward for better weight distribution...

[Chris Coufal]

I mounted mine behind the dash between the column and the radio.

[72MARIO]

Chris. Was your harness a uncluttered stock lenght harness ?

[Chris Coufal]

Yep......stock harness that I had Ken W. make stand alone. It was not lengthened.

[Hart_Rod]

Passenger's side core support...

[Willie Makeit]

Mine is similiar to Rob's above except its on the driver's side and the harness connectors enter from below. had numerous folks ask me where I had it hidden and it was right there in front of them.

[michael bustamante]

Originally Posted by Chris Coufal

Yep......stock harness that I had Ken W. make stand alone. It was not lengthened.

i need my harness modified as well, does he do this as a business?

[Chris Coufal]

Originally Posted by michael bustamante

i need my harness modified as well, does he do this as a business?

Yep.....great guy to work with and takes time to explain everything and even give you all the part numbers you need to order for stuff like fuel setup.

http://www.standaloneharness.com/

[foamypirate]

Not the best picture, but I am using the Tejas Steelworks ECM mount with a small mod to my ECM mounting (longer standoffs) due to my harness routing.