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LS6 Install Part 3 (September 29, 2014)

This page continues the documentation of the installation of a LS6 Engine and T56 Transmission out of a 2005 Cadillac CTS-V. This page documents adapting the Cadillac T56 Transmission and shifter to work with the Camaro. Also shown on this page is the installation of the driveshaft and heater hose fittings as well as an ecm computer mount I made.

Status photos as of 9/29/2014:

My heater hoses had AN fittings on them already. I wanted to use the AN fittings on the LS6 as well. After some reading, I discovered that the heater hose fittings could be pulled from the water pump and tapped. The Front hole was tapped for 1/2 NPT and the back hole was tapped for 3/8 NPT fittings. Tag Heuer Formula 1 Replica
I used two 90 degree AN fittings. The front fitting was a standard 90 degree fitting. For the back fitting I used a 90 degree swivel fitting due to clearance issues when trying to install the fitting. The fittings are too close together to screw in a standard 90 degree fitting because it would hit the other fitting when installing it.
The CTS-V transmission does not have a standard slip joint yoke on the transmission. Because of this I needed to purchase a driveshaft with the slip yoke in the driveshaft. I used The Axle Exchange because they were local to me and had received good reviews from people local to me and on the internet. Rolex Yacht Master II Replica
Another difference with the CTS-V transmission is that the transmission uses an external shifter. This shifter mounts to the transmission and the body on the Cadillac. I cannot use the shifter as is because the shifter would be located in the back seat. Here is where the transmission lines up with the factory shifter hole.
Here is the unmodified factory shifter.
Here was my original plan for the shifter using the modified factory shifter arm mount.
Here is the finished product. I built my own shifter linkage.
The factory 4 speed shifter is offset to the left. Unfortunately, my shifter mounts in the center of the trans tunnel. I had to cut some of the passenger side of the tunnel to make room. Later I patched the hole with some sheetmetal and weather stripping to seal the cabin from the elements.
I used some steel to make an offset shifter mount for the handle. This offset mount will mount on top of the cut down factory stick. I used a thicker piece of steel for the bottom of the mount, a piece of angle iron for one side and another piece of steel for the other side of the angle iron.
The factory stick was too high to work with the new shifter. I needed to cut it down and weld it together.
The transmission fit in the tunnel with no issues. The only issue was a small tab that interfered with my starter wire bulkhead.
I needed to create a mount for the engine computer. I used some angle iron with holes in it. This is similar to the mount I made for the TPI computer previously. I also mounted the TAC module to this mount. This mount is then mounted to the Vintage Air mount behind the glove box.

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