340?????

jeffs_62 · #1 08-27-2009, 12:03 AM

I just picked up a 1980 dodge power wagon.
The guy I bought it from says that it has a 340 in it.
My question is how do I find out for sure what motor is in it?
I bought it becuase it was the right price at the right time and it runs really good, but if I do need to get parts for it in the future it sure would be nice to know what to tell the guy behind the counter.

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kev2 · #2 08-28-2009, 11:36 AM

340 was not offerd that lale - much interchanged and stickers are cheap SO its checking the numbers: google away but to get you started

http://www.stockmopar.com/mopar-engi...g-numbers.html

http://www.yearone.com/updatedsingle...ngnumbers.html

jeffs_62 · #3 08-31-2009, 02:07 AM

Thank you.

fascistfaction · #4 08-31-2009, 03:05 PM

I have a 340 cid in my 1971 Demon. I think they went to a 360 in mid 70's and could not hae been stock in 1980,
FF

kev2 · #5 08-31-2009, 06:47 PM

340 demon- matching no#? very very nice

fascistfaction · #6 08-31-2009, 09:04 PM

Yes matching numbers. I put new wheels and TTI exhaust and headers so far and working on the suspension:

Pictures are small....
FF

fascistfaction · #7 08-31-2009, 09:36 PM

I looked in my Mopar milestone magazine and the 340 was discontinued after 1973 due to the clean air act. The LA 360 was its succesor,
FF

jeffs_62 · #8 09-03-2009, 01:40 AM

I didn't think it was. I need to check the numbers on the block.
If it is in fact a 340 that would be kinda cool.
whatever it is it moves the truck pretty good.
My brother thought it would be cool to try and take me at a light when we brought it home. His 2008 Z71 couldn't keep up.

Next time I'm at my brother's house I'll get the numbers and check them.

jeffs_62 · #9 10-16-2009, 02:24 AM

Update.
It is not a 340 (bummer).
It is in fact a 318.
I was lied to.
O-well it still runs good.

Ironmower · #10 10-28-2009, 07:59 AM

Kinda sucks being lied to. But all may not be lost. Maybe someone swapped out some X or J heads, I've put together a couple 318s with some 340 parts. the only thing that won't work, of coarse is the pistons. That's why I'd find an older (pre-70s) 318. they have free floatin rods and factory 9.0 to 1 compression ratio.