Someone needs to start re-casting 340 blocks
The X Blocks were cast stating 318 on sides.
But has a large X on front right below where the head is -Alternator kinda hides it. They are heavier, like 38 more pounds.
The rest blocks were next up.
Every one I saw needed work. The R3 360 we had both of them. One had bad core shift, other one had a problems too.
Had to pull strings to get good ones send out.