I pulled these numbers off of my 1970 402 out of a 70 GMC 3500 2wd work truck. Are they good heads. I was going to get them ported , polished and rebuilt if they were.
3975950....68-70...oval port...OPEN chamber ...396, 402 Truck, 366T, 427T
/forums/images/graemlins/dunno.gif
3975950....68-70...oval port...OPEN chamber ...396, 402 Truck, 366T, 427T
/forums/images/graemlins/dunno.gif