Hi, I'm looking into buying new heads here soon since my stock manifold bolts are broken and I want some power.. anyways, are these reworked 5.3 heads? What kind of compression ratio would I be looking at with these heads and power increases? I already have a 212/218 low lift cam and would be throwing on some long tubes as well.
These are the heads on your site...
https://sdparts.com/details/scoggin-...center/sd8926c