I would buy as complete of an engine as possible. I have pieced mine together and while it may seem cheaper or not as much cash outlay, these LS engines can really add up with bolts here, bracket there, sensor, etc. Travis (daytonayellaz) seems to be the resident LS supplier on here and PT.com. I would check with him along with the others recommended.
The 6L80E is a big transmission, are the older Impalas X-frames?
__________________
Stephen
|