|
There is a slight discrepancy in port hieght from inlet to valve seat on the Finned Late model heads and the Unfinned heads. The unfinned heads are just IMO. But for some reason the Built motor im doing it finned. The un-finned head is longer ports barely or some crap. I could be talking out of my ass. The Black top s13 is lower port and the VTC heads are the shortest.
|