I am about to buy a 1978 Dodge ram 3/4 ton 4wd pickup truck with a 318V-8 engine, BUT, I have a question regarding the engine...I do not have a manual for this truck and have ordered 2, but I am unsure about the heads....For instance, I own a 1973 Dodge B-200 3/4ton van, with the 318 v-8. It had some problems as the valves burnt due to the usage of unleaded fuel. The original manual states DO NOT USE UNLEADED FUEL IN THIS VEHICLE! I found out the hard way that the valves burn up! I do not have any info on the 1978 but I suspect that it also must have the heads replaced ??? Does anyone know anything about this beast? You won't even believe the price! Blue book lists it at $1,900 low...I am getting it for only $200! Needs some work, and 2 tires...runs and has not been on the road since 1998.