We make bolt-in conversion radiators and we also offer a forum member discount:
http://67-72chevytrucks.com/vboard/s...d.php?t=590670
We can build it for any engine set-up including the LS (no additional charge) and include a free steam port and built-in trans cooler if needed.
With regards to the $200 price cap, yes, we will be above that by about double. The cheaper priced radiators pretty much always use epoxy for where the core meets the ends as an inexpensive way to mate the two together. While there are many people that go this route, they almost always fail at some point, and put epoxy residue in your entire cooling system as it breaks down. We make ours by hand here in the USA with domestically sourced materials, and never use any epoxy, plastic or glue. To do that though means our prices are going to be well above the imported chinese units that don't have the same quality. If there is anything we can help you with, please let me know.