LS/6L80E into G Body (El Camino)

[Tomeal]

Definitely need the frame extensions on the driver's side if you don't have them. My cross member is from a th350 and it looks like the passenger side needs to move back as well. Could find the right sized metal and extend it back as far as needed.

 

[BobinHSV]

the oil pan is what i used, transdapt engine mounts. i unstalled 6l80 not the 6l90 so clearance may be different

6L90 is 7/8" longer than 6L80.

 

[cannoncart]

Definitely need the frame extensions on the driver's side if you don't have them. My cross member is from a th350 and it looks like the passenger side needs to move back as well. Could find the right sized metal and extend it back as far as needed.

The 4 doors have this second one (for diesel v8). Do the 2 doors have it?

My frame rail will need a little adjustment though - my parts car isn't damaged like that.

 

[Tomeal]

The extensions showed up on most cars in 84. There are a few exceptions, but I can't think of them now. But you have it in that picture. Should be a second set of mounting points close to the body mount in the picture.