G
Guest
·Anyone know which factory 390's had screw in freeze plugs? Did the 390's that had the screw in freeze plugs also have the reinforcement ribs that are similar to the 428CJ block? I am trying to look for a block to take to 428ci for my r-code...a friend told me he has a 390 out of an old truck that has screw in freeze plugs. I haven't had a chance to look at it so I don't know if it has reinforcement ribs that I've been told are in some 390's and 391 FT's.