SB Cam Thrust Plate P5249637 no longer made? Only tensioner now?

Duane said
Why would you not use one with a double roller. They have some slack in them too, just curious.?

The tensioner blocks that rub the chain were made for narrow single width chains. A good doube roller is plenty strong. Just my opinion that they aren't necessary. I put one on my 273 when I built it but I wouldn't do it again.