Hi, I recently was going through some of the stuff I have around and noticed something strange on a 318 block I have, the casting number is 4104230 but there's a large R casted before it.
Searching it up I find that it should be either a "race block" or a later 80's stock 318, yet the casting number on it is 79, and there's also no X cast into the block, and all the basic stock 318 blocks I've seen with this casting number don't have a big R cast into them, so I'm very confused with what I have.
Mostly just wondering if its any stronger than my 318 magnum block I'm using now, as I'm planning on turboing it. Any help is very appreciated, thanks.
View attachment 1715319302 View attachment 1715319304 View attachment 1715319305 View attachment 1715319309
