1971-'73 340 blocks: Is one of these yours?

I have several 340 blocks, none of which belong to any of my cars. Four are "untouchable" because they're either in use, being built, or I know the car's fate. The other six? If one matches your VIN, let's get car and chassis reunited. If you're searching for something '68-'70, keep looking--the oldest VIN I have is a '71. I did my best to get clear pictures of all of the numbers, but some are just weak stampings.

In no particular order, here they are.

Block #1: I know nothing of this block. I bought it from a CL ad in Central WI several years ago. Casting date 1/8/73.

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Block #2: I the story I was told about this block is that the original car (I was told a Duster) was rolled. The seller pulled it from his sister's Duster, which had died by fire. Retrieved from NE Wisconsin.

Note: For those of you who believe block dates can be nailed down to a certain day, this was cast 9/24/71.

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Block #3: Another block cast 9/24/71. This one does not have a year stamped on it, so it could be '72 or '73 based on what we learned on block #2. I purchased it in southern Wisconsin.

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Block #4: Bought along with #3. Casting date 5/31/72.

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Block #5: Purchased near Duluth, MN. At time of purchase it had W2 heads, Victor W2 intake, MP 284/.528" solid cam, forged TRWs, etc. I forgot to note the casting date. This block has damage in the starter area. It's not remotely fatal, but it is going to require a bit of work to repair.

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Block #6: Show's over, nothing to see here. This one's a B-body block (Lynch Road origin, I only have two such blocks). Look at your pal's '72 Road Runner or Charger just in case. This thing defies any attempt at photography--this is the best of about a dozen. I believe the last two digits are 48. Casting date 1/15/71.

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