Keel bolts

[Kevvymm]

I am looking to purchase a cat 30. 1976 but the keel bolts look shot. There are something like lag bolts next to the bolts that the nuts have rusted off..i can send pics of this..how do i change out old bolts? Im use to wood boat restoration

 

[Calif. Ted]

You can't really change them, they were J bolts cast into the lead, the most common fix was stainless lag bolts next to the old, not gonna be as strong.
http://www.catalinadirect.com/index.cfm/product/2463/bolt-retrofit-kit-for-lead-keel.cfm