Pick a block

rumblefish360 said

Try typing your quote on ether side of the quote tags.

Year of the thin walled 340? I don’t remember and I ain’t checking until spring.
:lol:

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My machinist says to sonic check all 340 blocks, but says that the 1971-73 (casting date 1970-1972) blocks usually are where you’ll find a set of thin cylinder walls.