Sscott

I have a casting number that indicates 70-72, 396021F.
but my vin stamp under the head reads 38M308158.

what do I have here?

joe_padavano

What, you didn't like the answer I gave you in the other thread where you posted this same question?

That san-serif "F" was used on 1968-70 455 blocks. I don't know where you got the idea that this is a 70-72 block. It's a 1968 VIN derivative.

BackInTheGame

The second digit in the VIN derivative, "8," indicates it is a 1968 block.

hurst68olds

it is still RED like a 1968 block (non-Tornado)

hurst68olds

here's a recent 1968 A/C 455 I purchased - I'll get a pic of the casting number tomorrow

Sscott

JOHNNYOLDS442

hurst68olds

the curved oil fill tube is 1968 A/C ONLY
here's a pic of the casting number & the casting date "134" = WEDNESDAY May 13, 1968
the car - probably a 98, 8M406001 was assembled late May or early June




WAG - the date on your block is around "050" = MONDAY February 19, 1968 ????

JPinAZ

Rockauto also shows three other pilot bearings with 1.37 OD that matches the drill to specs.

https://www.rockauto.com/en/catalog/...t+bearing,1964

Fun71

Looks as if the "Related Topics" at the bottom of the page in the mobile app has caused another post in the wrong thread.

JPinAZ

I am not sure how I did that but it does not belong here.