First post. Was considering building a stroked 340 and was considering the Promaxx heads CNC'd with 2.08" valves. Was wondering if anyone has any experience with the valves that come with them. Was wondering if they are a quality valve. I think they are Ferrea valves. Not sure if they were imported for them or if they are indeed Ferrea valves. Hope I am spelling that right. Any info would be appriciated. Thanks.

as well.........
have you tried asking this question in the racers section ? might get more info there.

Welcome to the board.
I don't know what valves Promaxx uses, but if they are Ferrrea, I've had several engines with Ferrea valves and never had a problem with them.
There may be different price points/performance levels, so if they can provide a part # you'll know which specific valves are included.
And yes, this would get more attention in the Race & Engine section.

Pro Maxx or Speedmaster brand CNC ported 440 Mopar aluminum heads?

This would be a stroked 340 block to a 414 or 416 cu in. They are not speedmaster they are promaxx.

Thanks everyone for the replies. I will try the race section.