Epoxy the LG block in and don't forget to add some tri stock bracing from the top of the block to the fuselage sides.

As others have stated, the LG block takes a good amount of abuse. Ideally you want to distribute the force along the fuselage also to help dissapate it.

As for the nylon LG bolts - there is pro and con. I know how they are supposed to work, however, with the "unschedualed" landings I have made, I have not had a nylon bolt shear off before the LG block let go. This is just my experience.