Yeah, those are some of the better ones. Those mother bears were big money back in 1999/2000ish and they were damned hard to get. Make sure you are very careful on pre-assembly. The pushrod seat is very high and it makes the pushrod run at an even more queer angle that it already does. Like I pointed out earlier...that's why the relieve the top of the lifter body. If they didn't, the pushrod would hit it.