Speedmaster Small block porting tips and results Part 1
Well guys I’m done for now. I had a stone shatter trying to put a 75 degree bottom cut on this head. I ended up taking a sanding roll and slightly rounding the edge off at the bottom of my 60 degree cut. My valve job looks like she-ite and a swear a kindy gardner could do better with Play-doe. Would it make horsepower yes. The pinch speed is 350-300 across the entrance and it carries it well throughout the port. Even down the pushrod wall. The shortside speed is high (380-pegged 401) but is hugging the shortside curve nicely. I got to get my butt moving on my 408 build for next year so it would be a waste of needed money going any further here till I can get my local shop to do a professional 75-60-45-30-15 degree seat for my 2.05 or 2.08 valves I have sitting here. It’s times like this where I would have bought my buddies mill.