I am at a delima.I have a 1985-c30 1 ton (454 cid) with 165000 miles on it. It jumoed time last weekend and I have it tore down. I am not sure if it has any other damage like valves bents or what. i was wondering what would you guys do. Replace the timing chain and see what happens or replace the motor3500-4000 dollars or replace the truck . I have ad it since it was almost new and i rebuilt the tranny last year.