318 build using 302 heads

After looking again closely, it's possible those are 2.02s. Look at the red area I circled. Now compare that to the head with the stock valves. Clearly the head with the larger valves has had the chamber cut in that area. It's a tricky picture to judge for sure. Just might be 2.02 and 1.50 but boy that would be a mismatch for those heads, IMO.

It might help if I added the picture. lol

202 MAYBE.png