OP- i bought a set of the rockauto heads to replace my l32 factory heads.They come from ATK-a reputable reman company. I compared all the valve sizes and they were identical. overall, i was impressed with the quality of the heads. you should be happy with them.
The head arrived yesterday and it is ATK, so not sure why it just said "Famous Brand" on rock auto's site. Anyhow like yourself, I am very pleased with the quality.
01 Silvermist GTP - E85 - Cam - Heads - Phenolic IC - Polished Gen V - Stock trans...