Quote:

Why do SBM's run the link bars down (toward the valley) where a lot of other roller cams can run the link bars up?

Is it just because of the 59 degree angle?



Yes.

The pushrod hits the top of lifter/link bar if it is reversed in the block. a 48 degree or Big Block Mopar can get away with reversing, but not a 59 degree SB.