Correct date code for 69 340 intake?

[dbphemi]

I'm thinking about picking up a factory intake for my 69 340 swinger. My fender tag is Mia so I don't know the build date of the car . The cast date on the block appears to be around june of 69 but I could be reading that incorrectly lol. Can anyone help ? Thanks.

 

[crackedback]

That's got to be a late build if it's got a June 69 cast engine in it.

 

[dbphemi]

Yeah I was thinking that too. The block only has the factory letter and then the sequence number instead of the whole vin like most other 69's I've seen. I bought it 20 years ago and it had been sitting in a barn for 15 years with a spun rod bearing. How late in the year did they build 69's b4 they switched over to 1970 model?

 

[OldmanRick]

I believe i read that the changeover was the last few days of July, but can't recall if that was just the line or across the board. However imo, i think April or later on date would satisfy most numbers guys.

 

[Rocky_JS]

get the casting numbers off the block.
Also get the assy date from the front left side near the head mounting. There should be a machined surface there with numbers normally starting with FW340P(XXXXXXXX).
The first 4 digits are assy date using the Chrysler 10,000 day code and the second 3 or 4 are the seq num of assy.

Yeah I was thinking that too. The block only has the factory letter and then the sequence number instead of the whole vin like most other 69's I've seen. I bought it 20 years ago and it had been sitting in a barn for 15 years with a spun rod bearing. How late in the year did they build 69's b4 they switched over to 1970 model?

 

[dbphemi]

it says: fw340p28380278

 

[dbphemi]

i did a Google search and if i did it right build date is May 5th 1969. so i guess it was built in may! i was going on memory on what the casting date said. i guess my memory is bad. ive got the motor under a work bench cant get to the casting date easily. Anyone know how close to engine build did the cars usually get assembled ?

 

[Rocky_JS]

you got it!

F = 1970
W = cast at Windsor plant
340= engine size 340
P = Premium fuel
Day 2838 = Monday, May 5, 1969.
I would say +/- 3 to 6 months from casting to assembly from what I've seen.
last 4 is the seq number for the day

i did a Google search and if i did it right build date is May 5th 1969. so i guess it was built in may! i was going on memory on what the casting date said. i guess my memory is bad. ive got the motor under a work bench cant get to the casting date easily. Anyone know how close to engine build did the cars usually get assembled ?