340 engine info?
#1491533
08/27/13 11:45 AM
08/27/13 11:45 AM
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Joined: Jan 2003
Posts: 13,369
Marion, South Carolina [><]
an8sec70cuda
OP
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OP
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I have a 340, cast date on the block is 1-6-70
VIN is 1B255690
casting number is 2780930-340-1
Can you tell what kind of car it came out of by the VIN?
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: 340 engine info?
[Re: dogdays]
#1491536
08/27/13 02:35 PM
08/27/13 02:35 PM
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Joined: Jun 2005
Posts: 5,107
Western Md.
skicker
"The Champ"
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"The Champ"
Joined: Jun 2005
Posts: 5,107
Western Md.
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I know 70 is different from 72, but when I had my 72 Barracuda the engine #'s that were stamped on the block below the drivers side head read HM318R. The H was the engine designation for a 318 and the M was the designation for Mound Round Michigan plant the 318 was self explanatory and the R was for regular fuel. The final 6 digits were production or vin #. Its been about 25yrs ago...hope this is still right.
...FAFO...
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Re: 340 engine info?
[Re: dogdays]
#1491539
08/27/13 05:08 PM
08/27/13 05:08 PM
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Joined: Jan 2003
Posts: 13,369
Marion, South Carolina [><]
an8sec70cuda
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OP
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I'll get the numbers off the front of the block below the head when I get home this evening...I'll post them in the morning. Thanks!
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: 340 engine info?
[Re: an8sec70cuda]
#1491541
08/27/13 09:50 PM
08/27/13 09:50 PM
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Joined: Jan 2003
Posts: 75,043
U.S.S.A.
JohnRR
I Win
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I Win
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Quote:
I'll get the numbers off the front of the block below the head when I get home this evening...I'll post them in the morning. Thanks!
They won't help any in telling you what car it came from ... 
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Re: 340 engine info?
[Re: JohnRR]
#1491542
08/28/13 08:58 AM
08/28/13 08:58 AM
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Joined: Jan 2003
Posts: 13,369
Marion, South Carolina [><]
an8sec70cuda
OP
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OP
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The numbers off the front of the block are pretty hard to read. They're very faint, but here's my best guess. GM340234260696 A I'm gonna keep the motor since it's a '70 model (assuming by the cast date) and my 'cuda was originally a 340 car. My car's original engine got sent to the scrap yard many years ago by a previous owner.  I was just curious if anyone could tell me what it came out of.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: 340 engine info?
[Re: ScottSmith_Harms]
#1491544
08/28/13 09:48 AM
08/28/13 09:48 AM
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Joined: Jan 2003
Posts: 13,369
Marion, South Carolina [><]
an8sec70cuda
OP
I Live Here
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OP
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Well crap...so it came out of a '71 model car? 
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: 340 engine info?
[Re: an8sec70cuda]
#1491546
08/28/13 01:01 PM
08/28/13 01:01 PM
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Joined: Jan 2003
Posts: 75,043
U.S.S.A.
JohnRR
I Win
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I Win
Joined: Jan 2003
Posts: 75,043
U.S.S.A.
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Quote:
VIN is 1B255690
This here told you it came from a 1971 model year car Chip.
The 1 is the model year , B is the build plant , the 6 digits are the last 6 of the cars vin .
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Re: 340 engine info?
[Re: JohnRR]
#1491547
08/28/13 01:06 PM
08/28/13 01:06 PM
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Joined: Jan 2003
Posts: 13,369
Marion, South Carolina [><]
an8sec70cuda
OP
I Live Here
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OP
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Marion, South Carolina [><]
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Quote:
Quote:
VIN is 1B255690
This here told you it came from a 1971 model year car Chip.
The 1 is the model year , B is the build plant , the 6 digits are the last 6 of the cars vin .
I didn't know that. I'm used to big blocks...being able to determine the year from the letter on the ID pad. This small block stuff is all new to me.
Thanks for the help!  
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: 340 engine info?
[Re: dogdays]
#1491549
08/28/13 03:18 PM
08/28/13 03:18 PM
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Joined: Jan 2003
Posts: 13,369
Marion, South Carolina [><]
an8sec70cuda
OP
I Live Here
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OP
I Live Here
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Posts: 13,369
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Quote:
"being able to determine the year from the letter on the ID pad"
Let's get this straight. We just did that.
Just like on a bigblock engine, the smallblock engine ID number tells you the model year of the vehicle in which the engine left the factory.
In the case of your engine, the "G" at the front of the engine ID clearly says the engine was built for a 1971 model year vehicle. The VIN does the same.
It may be an idiosyncracy but I am not so much worried about what car, but more worried about what engine, so I concentrate on the engine ID number.
Others who are more into the restoration game might concentrate on the VIN.
In the world of Mopar blocks, the 340 is relatively rare. So in my mind any 340 is worth saving.
R.
I understand that now, but like I said earlier, I am new to the small block stuff and I wasn't aware of the engine pad location to find the letter. The numbers/letters on the front of the block didn't even register to me as being the same as the big block pad stampings. 
Thanks for the help.
CHIP
'70 hemicuda, 575" Hemi, 727, Dana 60
'69 road runner, 440-6, 18 spline 4 speed, Dana 60
'71 Demon, 340, low gear 904, 8.75
'73 Chrysler New Yorker, 440, 727, 8.75
'90 Chevy 454SS Silverado, 476" BBC, TH400, 14 bolt
'06 GMC 2500HD LBZ Duramax
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Re: 340 engine info?
[Re: an8sec70cuda]
#1491550
08/28/13 06:47 PM
08/28/13 06:47 PM
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Joined: Jan 2003
Posts: 16,376
dogdays
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I Live Here
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Didn't mean to come down too hard, sorry. In my mind this is part of the fun of Mopars, the discovery of the "true facts". Where/when was the engine built, and those gurus who can look at a VIN and tell you what it probably came in, are cool.
Another fun thing is knowing which parts came on both a 2-barrel 383 and a 375 hp 440. I started out in the chevy world and it was a real bummer to hear that there were almost no parts in common between a 165 hp 350 and a 370 hp 350. Or even a garden variety 396 4-barrel and a 375 hp 396. Block, crank, heads, rods, pistons all different.
Good luck with your car!
R.
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