[68hotbird]

Wanted to share my thoughts and info so far on the speedster heads. I did a mild port job and there is lots of room. The CNC entrance ports are nice I just blended to them. The exhaust needed a fair amount of clean up in the bowls. (hard to see the real results due to shadows in the pictures. I also upgraded these heads to 2.19 intake and 1.77 exhaust valves. The speedmaster valve stems measure about .2405 and the replacement valves are .2415 if you make this switch prepare to hone all of the guides as I did. All in all I'm very pleased with the heads if the valve seats don't fall out like many of the other speedmaster products. FYI I have not yet completed the valve job so the pictures of the seats are as delivered.