Hey guys and gals...I am ready to take the leap. I want to do a 5.3 swap/4l60E on my 88 g20 van. SO today I pulled the trigger on a 5.3 drop out with 90,000 miles on her. Not sure of the completed time frame but I will try to keep you guys posted. I take delivery of the new motor next week sometime. Got a pretty good deal on ebay.