3004648 are BB which got the oil groove higher ( 976 replacement part ).
Remember I'm BB owner, but I can take SB pieces ( 2011 replacement PN )
because they work on BB, not the other way around thought.
I'm actually running HLJ SB pieces on my BB, because for whatever reason the BB HLJ never got charged. MAYBE is because the lifter bores are worn out somehow conical and the higher oil groove doesn't help?!!!
Sooo maybe running OS BB lifter will work. The problem is the machine shop hasn't taken my block yet to measure it!