What?s everyone?s recommendation for a rear seal replacement type for a SBE 19 L84 with an LT4 blower @10psi, looking to possibly go down a pulley size for another +2 psi in future.
I?ve found the oem one 12665076 but any way mechanically retain it from pushing out again?
I understand this root cause is likely very sigh crankcase pressure (wasn?t timing related as it?s been pretty conservative in this range for months with no spark table changes and have many pulls under the same conditions) during that mid-rpm pull so that leads to my next, more important question of: what catch can is everyone running on their LT engine after going from NA to FI? I do not have the LT4 style valley under the blower.
Thanks in advance,
Robert