88-91 (92?) 360 blocks "hydr liftr" vice retro fitting older LA blocks

Can these be bored out to .040? or is .030 generally the max? What's are your experiences with these blocks?

I have an extra set of hypereutectic pistons at .040 and am in the process of getting some 308 heads...

Is it that much harder to run hydraulic roller lifters on the older LA small blocks?

What is there to retro fitting a 'hydraulic roller lifter' set up on the older blocks?

thanks!!!