Speedmaster heads revisited.
Well todays little project will finish up this head for now. Time to drill the two rocker gear oiling holes through the brass tubing I installed in the oiling bolt hole (1/4 inch). Then I’ll grind down the brass tube on the top of the head on the pushrod tubes dressing it up some, then this customer wants the spark plug holes laid back some to expose the spark plug better. Then I’ll set this one aside and jump on porting the other head.
Well todays little project will finish up this head for now. Time to drill the two rocker gear oiling holes through the brass tubing I installed in the oiling bolt hole (1/4 inch). Then I’ll grind down the brass tube on the top of the head on the pushrod tubes dressing it up some, then this customer wants the spark plug holes laid back some to expose the spark plug better. Then I’ll set this one aside and jump on porting the other head.