Thread:

Lead Addtive

Originally Posted by srfinatsunset

I have a 454 bbc, serial numbers say its from 74-79. It is in a 74 Campbell I was told when I bought the boat the valve were redone. I dont know if that means valve seats were installed. Since this motor ran on leaded gas at one time should i run a lead addtive now. Do they still make a lead addtive? If so what are you using?

This is the ONLY lead additive out there that I know of.

LINK: Supreme 130
You can find old stock of the stuff on Ebay as Octane Supreme 130. Same stuff, just the old name.

Whether you need the stuff will depend on how hard you run the boat and how much, and what valves are in it. If it did have the hard seats done, then you don't need the stuff.