Thats what I was going to try for the upper hose. I think it will just sneak by the brake booster.
Lower hose you need to cut off 2 1/2" from the rad side and it will bolt up nice. At least on a 97 model with stock rad.
Oil cooler lines, the 5.7 has a different oil filter adaptor so the Astro lines wont bolt up. I purchesed my adaptor on ebay and it came with lines and a seperate cooler from an earli 90s blazer, so i used all that. I had the lines extended a bit at a local shop. Pics are up of it on my photobucket album. You could have the Express lines modified and put the Astro radiator ends on it if wont work as is.
The Express dipstick is about a foot longer than the Astro one. Use the bottom half of the express, and top half of 96-2005 Astro, and shorten the 96-2005 Astro dipstick half an inch and it will be good.
What year van are you doing? The 99? or your older one (cant remember exactly what year it was
The Express MAF is bigger, it is 3 1/2". The Astro one is 3 1/4". The intake snorkel is 3 1/2" too.
Its close.. Not sure the stock intake is going to work. Here is a pic.
Also a pic of the space at the brake booster. And on the left where the heater valve/hoses are just so you know when you go to put it all together..
Oil cooler:
Scott