I’m curious if I can fit an LT4 lpfp into my L83 Gen 5 Silverado. Like mount the LT4 pump body onto the long Silverado in tank mounting studs. Anybody any idea if the the mounting configurations would be the same? I’d be willing to buy an old LT4 pump to try if somebody had one.

Sorry, I answered the wrong question. With a supercharger and other mods I’m at 575rwhp@8 psi on E10. My low pressure fuel is down around 40 psi. I’m fixing to pulley down some and would eventually like try more alcohol. There’s not much out there specifically for these trucks with the deep tanks, the only full replacement I’ve found is from Armeggedon@$775. Don’t want to add more components or change the fuel pressure control strategy if I can help it. The LT4 pumps are reputed to be good for 800hp. Maybe I can make one work.