Tim,
As far as I know they are still available new. Only thing you have to watch is the weight, they have started making some of them a lot lighter and it will cause a balanc eproblem.
Bill Koustenis
Advanced Automotive Machine
Waldorf Md
Yeah I have 6 and only need 2 more. Would prefer the original to avoid a possible balance prob as Bill mentioned. And would prefer the same alloy. I see that the SpeedPro pistons have a silicone alloy of some sort. I don't know much about that alloy. I dont want that to be an issue.