I have a 1993 G20 with a 5.7 liter V8. It has plenty of power, great mileage on the highway, and can haul just about anything. I bought it with 53,000 miles and now has 65,000 miles on it. I have had to do nothing to it but general maintenance. I am very pleased with it and hope to have it for years to come. It drives and runs like it is brand new.
I really like the V8 for being a big van it will really get up and go.