I see nothing with letters for block castings. All info I have shows 8 numerals. Only 89 is for a car with roller cam. Are these numbers/letters from the rear of the block?


1953 Chevy 5-window 3100
In the Stovebolt Gallery
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Dave
Engine & Driveline Moderator

If you can't make seventy by an easy road, don't go. ~~ Mark Twain