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

No, it's no big deal except when pricing out retro fit hydraulic rollers vs. the stock style hydraulic rollers you can use when you have a roller block. These are the lifters that Comp recommended for my cam Comp Pro Magnum Hydraulic Roller Lifters. They are $529 from Summit Racing.

Because I had a roller block, I bought a set of new Melling hydraulic roller lifters for less than $100. I had to buy a used spider for $30, and a set of dog bones from Hughes Engines for $60. Total cost was around $200 shipped for everything.

These engines aren't that tough to find. I posted a link to one on my local Craigslist a while back, but no one seemed interested. Best bang for your buck in my opinion if you're wanting to build a roller cammed 360 or 408.