Continued to prep for the gas swap by pulling the gas tank.
Probably going to end up with the GM Performance L31 Crate motor which doesn't have a mechanical fuel pump provision. Now i know a carb motor isn't the most desired preference, but i don't want to spend Cummins/Duramax money, or take a risk on a used LS. A new engine will make me feel better about it, even though its "outdated technology" Whatever, fine by me.
Now since the motor doesn't allow for a mechanical fuel pump provision, That will mean i will need to use a electric fuel pump. Now unless i can make the 6.5 fuel pump sender work with a in tank fuel pump, i'll have to find another place to put the fuel pump. I know electric fuel pumps push fuel better than pulling it, so I'm currently researching to see if there is a way i can use a high volume diesel lift pump to send gas up to the motor from the original diesel lift pump location at a sufficient rate for the carb. Only need about 5-6 PSI for the Edelbrock carb. I think the 6.5 Diesel Air Dog Lift Pumps send about 8. Now obviously i'm in the initial stage of research so who knows, it may not work. I was just checking fitting sizes and PSI ratings of different pumps and decided to check the lift pump ratings. Regardless of what fuel pump i run i'll be using the original Oil Pressure Sensor circuit to run the fuel pump. That way its only pumping fuel when it should be. A regulator up by the carb will make sure we're sending only the appropriate amount of fuel and no more.
I'm ging to attempt to re-use the 6.5 fuel tank (will clean it out) and will attempt to keep the original 6.5 fuel lines with whatever pump i use, and will add a regulator that has a return line to send excess fuel back to the tank. That way i can re-use the entire 6.5 fuel system.
The alternative option is to find a gas truck with an in tank fuel pump and try to make the wiring work. Really want to retain all factory gauges so i'll have to get a schematic and see which wires send fuel level signal back to the truck, then find out how to wire and make the fuel pump run using the wires from the Lift pump which are triggered by the OPS circuit. If i can use a diesel lift pump, or an electric pump outside of the tank without burning through them like hotcakes i'll do that. I know the benefit of the in tank fuel pump is it uses the fuel to keep cool.
We'll see what products are on the market, again, i'm in the very initial stages of researching this.
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Also grabbed some Rubberized undercoating for the fenders and underbody. Started with the front fenders, will do the rest another time. Going to need a lot of undercoating for a 21 ft CCLB.
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Again, as far as the body.... you just don't see trucks this clean in the midwest, particularly a 1994. Big reason why i'm rebuilding this truck rather than junking it. Below is the underbody of the truck bed.
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