J Heads?

Like I posted in the other thread. The J head replaced the X head as a running change in mid 70 model year. Tjese heads had 360 cast on the ports also. They had 2.02" intake valves. The reason they had the 360 on the ports is that the 360 was just coming out and the changes to the head were charged off to the 360 program.

In 72 they went down to the 1.88" intake valves. However any good head/valve guy can open them up to accept the 2.02 valves and they will be as good as the early 2.02" J heads.