X-Head Porting....
@DentalDart
Get your port window shape dialed in. Unless you are going to work the intake manifold like that too
Center and tape the gasket to the head, then mist bright colored spray paint over it for a nice stencil to port trace.
Use the small 1/4 - 3/8 bit to do the guide finishing and port window, even out straight wall and bowl finishing near valve job.
Use the 1/2 bit for the bowl, roof, around the guide, kink removal and then finish touch with the smaller bits. Smaller bits on the push rod pinch too. When you get into air speed issues at the turn, bring the straight back at the top and let it have a slight lip to concentrate signal and overcome the dogleg.
Unless you do the entire turn reshape and even then, you will run into one side robbing the other.
Btw Goodson is great source for building/machining/porting supplies
@DentalDart
Get your port window shape dialed in. Unless you are going to work the intake manifold like that too
Center and tape the gasket to the head, then mist bright colored spray paint over it for a nice stencil to port trace.
Use the small 1/4 - 3/8 bit to do the guide finishing and port window, even out straight wall and bowl finishing near valve job.
Use the 1/2 bit for the bowl, roof, around the guide, kink removal and then finish touch with the smaller bits. Smaller bits on the push rod pinch too. When you get into air speed issues at the turn, bring the straight back at the top and let it have a slight lip to concentrate signal and overcome the dogleg.
Unless you do the entire turn reshape and even then, you will run into one side robbing the other.
Btw Goodson is great source for building/machining/porting supplies