Ls3 4l70 480 going in. Starting fuel pump install and new umi suspension tomorrow.
I used factory push in lines with a 90 degree bend and installed compression fittings with #6 AN. Got a slick really tight bend and about 6-7 inches of tube down to where attaching the hose with an AN fitting is really easy!Definitely figure out your transmission cooling lines before installing it. I had to use elbow fittings immediately coming out of the trans because of the tight fit.
I just finished an LS swap into my 67 Chevelle. Used all the Holley bits and it dropped right in. 4L60E in my case. Car is brilliant.Already have Holley kit with Hooker mid length headers. Just ripped out front suspension to install UMI. They sent two driver side upper control arms. Purchased new fuel tank and EFI sending unit. Just a step by step process. Installing a LS3 with 4l70