Originally Posted by fuseable
From Tim Banning at FHO, smear a little of the Right Stuff gasket maker around the oil drain back holes. front and back, both sides of gasket.

iagree I've heard this from a few known hemi engine builders. Silicone works also. Works for me. up

CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax