I have the usually crack between the spark plug hole and both valve seats on my cast iron A head , I do not have the slots talked about in Oct's MPH Tech Report by Bill Parr,
that is meant to stop the crack from happening.
Does anyone have an head that has the slots and could send me an picture of them, and do they really work.
My poor old valve seats are so recessed into the head that you can not take the head off in the frame as the top of the valve hits the cross tube of the frame.
New seats to go in, the new seats will be further out into the dome of the cyl head it looks to be about 1/4",
, So I guess I will have higher compress and better return of the valves by the springs after the job is done..
thanks
Peter Allen
that is meant to stop the crack from happening.
Does anyone have an head that has the slots and could send me an picture of them, and do they really work.
My poor old valve seats are so recessed into the head that you can not take the head off in the frame as the top of the valve hits the cross tube of the frame.
New seats to go in, the new seats will be further out into the dome of the cyl head it looks to be about 1/4",
, So I guess I will have higher compress and better return of the valves by the springs after the job is done..
thanks
Peter Allen