Engine VIN Stamp question

[gpm6367]

To those of you have seen a few of these how does this look to you? 1971 383 stamp along oil pan frame rail.

 

[moparlee]

1971 built at the Hamtramck Plant. What is your concern? Many times a number seems to be stamped lightly.

BTW - Go to the Welcome Wagon and introduce yourself and tells/show us what you are working on.

 

[gpm6367]

I am considering the purchase of this car and was wondering if font looks legit. They have been stamping blocks for decades. Not that familiar with Mopars.

 

[DetMatt1]

Looks fine to me.

 

[gpm6367]

Looks fine to me.

Thank you.

Where are the trans markings? Casting date and numbers? VIN stamped?

I know on rear diff there is s casting date and number but is anything stamped on tubes like on Chevys? 8 3/4 in this case.

 

[340challconvert]

This may help with the ID numbers on big block Mopars:
Moparts on the Web - Main Index

 

[gpm6367]

Where are 71 4spd trans casting #, date and vin?

Where are diff casting # and date?

 

[175617]

That serial number stamping looks good. They used a hand stamp with a holder that held all 8 of the charters so they stamped all 8 charters at once. Also the way I understand it is they stamped the transmission and engine one after the other, after the engine and transmission were mated together. So the serial number on the transmission and engine should be identical. The sixth character (I think it is a "1") should look the same on the trans. The locations of the trans serial numbers depends on the type of trans.
They stamped thousands of these every day and they wore out like anything would being used that much. So that "1" looks like it was getting worn. Anyway there is a lot of info at: mmcdetroit.com

 

[gpm6367]

That serial number stamping looks good. They used a hand stamp with a holder that held all 8 of the charters so they stamped all 8 charters at once. Also the way I understand it is they stamped the transmission and engine one after the other, after the engine and transmission were mated together. So the serial number on the transmission and engine should be identical. The sixth character (I think it is a "1") should look the same on the trans. The locations of the trans serial numbers depends on the type of trans.
They stamped thousands of these every day and they wore out like anything would being used that much. So that "1" looks like it was getting worn. Anyway there is a lot of info at: mmcdetroit.com

Interesting. Look how poorly the trans is stamped. The 2 is almost off the pad.

How do you read the lower set of stamping starting with PP? There’s a date in there isn’t there?

 

[moparlee]

View attachment 68194

Interesting. Look how poorly the trans is stamped. The 2 is almost off the pad.

How do you read the lower set of stamping starting with PP? There’s a date in there isn’t there?

1 - 1971
B - Hamtramck Plant (built the car)
132153 - Car ID number
PP - New Process Gear Division Plant (built the trans)
833 - Manual 4 spd trans
3133 - 10,000 day calendar, Feb 24 1970
0137 - 137th trans built on Feb 24

 

[gpm6367]

1 - 1971
B - Hamtramck Plant (built the car)
132153 - Car ID number
PP - New Process Gear Division Plant (built the trans)
833 - Manual 4 spd trans
3133 - 10,000 day calendar, Feb 24 1970
0137 - 137th trans built on Feb 24

Wow. That’s amazing. Thank you.

Pretty early assembly date on trans for a vehicle assembled on September 8, 1970.

 

[moparlee]

Wow. That’s amazing. Thank you.

Pretty early assembly date on trans for a vehicle assembled in September 8, 1970.

Yep, I would agree with that. But maybe New Process built up several trannies ahead of time.