63 c10, installing a LS engine

[chevy_mike]

Most trans mounts I have seen have the tab part to the rear, not forward like you have it. Like others, flip the crossmember around and you should be good to go.

[Farmer-604]

well word to the wise, the Performance On Line LS cross member and transmission mount will not work when installing a 2002 4L80-E transmission. As you can see in the pics I had to use 5/8" spacers to get the casting and bolts to stay high enough so that they didn't touch the tube. I also had to elongate the LS adjustable motor mount plates by 3/4". The issue I had was that the coil pack on the passenger side was about 1/4" from the fire wall and felt this was too close. I made the parts work but would do a little more research the next time.

[mongocanfly]

keep in kind your driveline angles...you need about 3 deg downward angle on the engine and trans...it should match your rear diff you which should be about 3 deg upward angle.....

[Farmer-604]

Yes, thank you for the reminder

[scoot_mcgrute]

Originally Posted by Farmer-604

well word to the wise, the Performance On Line LS cross member and transmission mount will not work when installing a 2002 4L80-E transmission. As you can see in the pics I had to use 5/8" spacers to get the casting and bolts to stay high enough so that they didn't touch the tube. I also had to elongate the LS adjustable motor mount plates by 3/4". The issue I had was that the coil pack on the passenger side was about 1/4" from the fire wall and felt this was too close. I made the parts work but would do a little more research the next time.

My coilpack was in the same spot as yours if not a little closer to the firewall. I made new brackets to move the coilpacks down and rotate them forward for clearance. There are a few companies that offer relocation brackets that would work great on a truck application but I'm running a car intake so I had an interference with the fuel rail inlet as well. Here's what I came up with to remedy the coilpack/firewall issue