My home inspection of Speedmaster heads
That cleared it up thank you vary much!
So how much does the bowl stick out at the bottom of the seat ring. looks like a bunch.
The ID of the seat ring is basically the same size as the plunge cut in the bowl.
Where the plunge cut ends there is a raised lip, but it doesn’t hang in too much.
A few mins with a carbide and it’ll be gone.
I love the comments in various threads about the “20 year old” valve job.
Well, I’ve been doing it for 30 years...... and never did them like that.
I’d say more like a 100 year old valve job.
When discussing it with some of the shops I do work for, we refer to it as the “full width” valve job........ meaning it’s as wide as the valve face.
Although that’s not really accurate with many valves......as the valves are often nowhere near that wide.
The seat width on these heads is about .120-.130 wide....... so, over twice as wide as they’ll be after I recut them.