g7/06 speed and ir3 valve dimensions

[Spaghetti Overdrive]

Anyone know the OD of the valves from these generations?

Wondering how realistic is trying to transplant a cocker valve into them.

[nadrepadre]

They are all the same OD at .711" Someone did a dye lazarus valve in an MT a4. It's possible, but you likely won't see any benefit unless using a balanced valve. One of the things you need to remember is the later guns (03 speed and later) have an ovular outlet. The oval matches the body hole and the air hole in the roto breech. In order to get into the ball park of a stock valve, you need to open the cocker valve to match

[Spaghetti Overdrive]

Yeah, I knew the laz would be out of question, but was thinking of tinkering with something like a palmers or inception since those types of valves you can probably just machine the slot and everything else would be fine