4.8 heads
 

Does anyone know any flow #'s on a 4.8 or any specs and how do they compare to a 5.3 heads?

They are the same as the 5.3.

Yeah I just did a research on them, I was on the phone with XLR8N. As he posted this, and right after we found some info on them.. Lol.

At first he was under the impresson that they were 5.3's for reasons I won't explain, but he got to looking at the casting and found 4.8 on the bottom.

These heads stock have the 62cc right???