Speedmaster heads part 2. Plus intake work

Last couple of pictures and due to lack of interest my last post on this. I may start another post on intake porting at a later date with flow numbers. Spark plugs holes have been modified. Other than that very little chamber work. They are going on a stock 1973 (340) so compression is low to start with. View attachment 1715667719View attachment 1715667720View attachment 1715667721View attachment 1715667722View attachment 1715667723View attachment 1715667724View attachment 1715667725
No lack of interest here , This has been a great tutorial and I for one sure appreciate your time and effort and hope this thread carries to completion.