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340 ID and color help

Posted By: LXguy

340 ID and color help - 06/24/11 04:16 PM

Hello:

I'm confused.

Is a 71 340 orange or blue?

If the block cast date is 6-71, is it a 71 or a 72 engine?

Anyone have a pic of the correct air cleaner for a '71?

Allpar says: "1970-71 engines were painted orange; they changed to blue in 1972-73, although some late 1971 engines ended up blue also." Is 6-71 a "later" engine?

Thanks for any help!

Steve
Posted By: burdar

Re: 340 ID and color help - 06/24/11 04:28 PM

I believe the change over to blue was in March or April of 71. That block would have been blue. You need to look on the block and find the assembly date. The block could have been cast quite awhile before it was assembled.
Posted By: ademon

Re: 340 ID and color help - 06/24/11 04:32 PM

Blue for sure
Posted By: ademon

Re: 340 ID and color help - 06/24/11 04:33 PM

here are 71 parts

Attached picture 6698195-Restopics(16)(640x480).jpg
Posted By: LXguy

Re: 340 ID and color help - 06/24/11 04:37 PM

Thanks for the help!

Where would I find the assembly date on the block?

Is there a date range where it could be either a 71 or a 72?

Want to sell that intake and/or air cleaner!?

Thanks again

Steve
Posted By: ademon

Re: 340 ID and color help - 06/24/11 04:40 PM

should be on the D/S front where the head meets the block. i have a extra but don't want to part with it for some reason the date will be in Julian calendar
Posted By: Morty426

Re: 340 ID and color help - 06/24/11 05:08 PM

I have a 71 340 block that was cast in Feb 71 and it went into a 72 car - so I doubt that your motor was in a 72.

Check the VIN pad
Posted By: ademon

Re: 340 ID and color help - 06/24/11 05:15 PM

for example my block has casting date of 7/70 was assembled 11/70 and did not go into the car till 4/2/71. since it was assembled 11/70 its orange but went into the car when most were getting blue engines. Not much set in stone with Chrysler!
Posted By: LXguy

Re: 340 ID and color help - 06/24/11 05:49 PM

Quote:

for example my block has casting date of 7/70 was assembled 11/70 and did not go into the car till 4/2/71. since it was assembled 11/70 its orange but went into the car when most were getting blue engines. Not much set in stone with Chrysler!



That's interesting. Is yours a '70 spec or '71? Weren't they lower compression in '71, or maybe that was '72.

Quote:

I have a 71 340 block that was cast in Feb 71 and it went into a 72 car - so I doubt that your motor was in a 72.

Check the VIN pad



Do you mean its most likely mine went into a 72, rather than you doubt it went into a '72? Your block was cast earlier than mine.
Posted By: ademon

Re: 340 ID and color help - 06/24/11 06:25 PM

they dropped cr in 72, mine is a 71
Posted By: Morty426

Re: 340 ID and color help - 06/24/11 10:55 PM

Quote:

Quote:

for example my block has casting date of 7/70 was assembled 11/70 and did not go into the car till 4/2/71. since it was assembled 11/70 its orange but went into the car when most were getting blue engines. Not much set in stone with Chrysler!



That's interesting. Is yours a '70 spec or '71? Weren't they lower compression in '71, or maybe that was '72.

Quote:

I have a 71 340 block that was cast in Feb 71 and it went into a 72 car - so I doubt that your motor was in a 72.

Check the VIN pad



Do you mean its most likely mine went into a 72, rather than you doubt it went into a '72? Your block was cast earlier than mine.



That it most likely went in to a 72
Posted By: cdp

Re: 340 ID and color help - 06/24/11 11:54 PM

I have a 71 block that is early 71 cast date with a 400000 series 71 VIN. Block is for sure Blue.

I've seen cars with 300000 VIN's and were still blue. One being a survivor car.
Posted By: LXguy

Re: 340 ID and color help - 06/26/11 08:57 PM

Thanks guys

Also curious, what do the first two digits on the VIN ID pad signify?

I've got one that's 0B, and one block that's 2B

Thanks,

Steve
Posted By: Morty426

Re: 340 ID and color help - 06/26/11 09:04 PM

Quote:

Thanks guys

Also curious, what do the first two digits on the VIN ID pad signify?

I've got one that's 0B, and one block that's 2B

Thanks,

Steve



0B = 1970 Hamtramck
2B = 1972 Hamtramck

Basically Year then plant the motor was installed at

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