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  #1  
Old 07-06-2009, 10:55 PM
pablo_max pablo_max is offline
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401 Mystery

For a while it was a mystery for me why I had a 401 installed in my 72 wagoneer since they were not an option until 74.
However, why doing my wiring I noticed my VIN plaque and also the "special order" plague. My VIN is actually a J2H14 which is not listed in the FSM.
I'm thinking this is one of only a few available from the factory with a 401.
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  #2  
Old 07-06-2009, 11:16 PM
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TexTJ209 TexTJ209 is offline
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You sure its an H? As that's the only part of that that's unlisted...and that digit just specifies the Assembly Plant, Transmission Type, and whether the truck was LHD or RHD.

The special order stuff was always goofy, and I've got no clue how to decode that.
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  #3  
Old 07-07-2009, 04:31 AM
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fulsizjeep fulsizjeep is offline
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hmmmm... not that far fetched I guess...

A 72 401 would have a 3 bolt pulley on the harmonic balancer.
The 74 and up V8 engines had a 4 bolt pulley.
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88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s with a few Evil Twin & TT's Fabworks mods
76 401 Wag, 77 401 Wag, 77 401 J20
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  #4  
Old 07-07-2009, 05:25 AM
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What about the valve cover tag? You should have a 5mm-Z-dd build date, where mm is the month and dd is the day.
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  #5  
Old 07-07-2009, 08:44 AM
pablo_max pablo_max is offline
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the valve covers were replaced
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1972 Wagoneer
401 w/edelbrock Performer manifold and Holley Truck avenger
Complete MSD ignition system with rev limiter and billet distributor.
4inch lift.
t-18/D20
E-Z wiring kit.
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  #6  
Old 07-07-2009, 03:21 PM
joe joe is offline
 
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Quote:
Originally Posted by pablo_max
My VIN is actually a J2H14 which is not listed in the FSM.
.
It all fits a 72 wag except the H, you sure it's not a misread or typo'd F?
What's the 8th digit of the VIN?
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  #7  
Old 07-07-2009, 04:22 PM
uh60 uh60 is offline
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Does your VIN 7th didget have a "Z" ?
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  #8  
Old 07-08-2009, 06:48 AM
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Somewhere there must be a list of all the Special Order config rigs out there like this and the chassis mounted campers, kind of like a registry. This wag is a good demonstration of why the parts list can't be interpreted as "gospel" in defining what parts were installed on specific vehicles... more of a guide as to what was typically installed.
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  #9  
Old 07-08-2009, 09:08 AM
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HARDCORE pacer HARDCORE pacer is offline
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Quote:
Originally Posted by fulsizjeep
hmmmm... not that far fetched I guess...

A 72 401 would have a 3 bolt pulley on the harmonic balancer.
The 74 and up V8 engines had a 4 bolt pulley.


The break on the 3 bolt and 4 bolt pulleys is 72 not 74. In the cars anyway.
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  #10  
Old 07-08-2009, 10:01 AM
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fulsizjeep fulsizjeep is offline
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OK. I did not mention 73 because I didn't know which pulley was used then. Thanks
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Ran when parked.
http://jubileejeeps.org/quadratrac
88 GW, 401/727/208, 5" lift, D44s/4.10s/locked up, 35s with a few Evil Twin & TT's Fabworks mods
76 401 Wag, 77 401 Wag, 77 401 J20
http://eviltwinfab.com http://www.ttsfabworks.com
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  #11  
Old 07-08-2009, 10:45 AM
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dajeeps dajeeps is offline
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401 mystery

72 401 is not to far fetched,my 73 j 4000 on the wheel well their is a sticker saying this:engine famialy 360c.i.d and 401c.i.d. so when i repainted itthe masking tape pulled off the 1
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  #12  
Old 07-08-2009, 10:46 AM
pablo_max pablo_max is offline
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I guess I will take a look at the pulley when I get home.
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1972 Wagoneer
401 w/edelbrock Performer manifold and Holley Truck avenger
Complete MSD ignition system with rev limiter and billet distributor.
4inch lift.
t-18/D20
E-Z wiring kit.
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  #13  
Old 07-08-2009, 11:22 AM
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babywag babywag is offline
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Anything is possible regarding AMC, I've seen some weird stuff on their part.

You've got a 37yr old vehicle.
Valve cover tag/pulleys/etc. not really going to tell you anything.
Any of them can be switched or replaced over the years.

The 8th digit of the VIN will tell you what engine came in the wag.

But, the most likely scenario is that a previous owner installed a 401 @ some point.
People do it all the time even these days.
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  #14  
Old 07-08-2009, 03:02 PM
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skeletor skeletor is offline
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Quote:
But, the most likely scenario is that a previous owner installed a 401 @ some point.

or possibly a dealer, like the brian chuchua jeeps and amcs.
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  #15  
Old 07-08-2009, 04:27 PM
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grand_wag_85 grand_wag_85 is offline
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I see alot of 80 and up FSJ's out here with 'factory 401's. Does the air cleaner have a HUGE yellow sticker on the driver side? What shape is the snorkel on the air cleaner compared to the hole in the valance on the passenger side between the headlight and radiator?
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  #16  
Old 07-08-2009, 10:01 PM
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Elliott Elliott is offline
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Quote:
Originally Posted by pablo_max
For a while it was a mystery for me why I had a 401 installed in my 72 wagoneer since they were not an option until 74.
However, why doing my wiring I noticed my VIN plaque and also the "special order" plague. My VIN is actually a J2H14 which is not listed in the FSM.
I'm thinking this is one of only a few available from the factory with a 401.

If it has the Special Order plaque... that is there for a reason. It very likely was ordered with a 401 and there is no reason to doubt it. What else would you do to a Wagoneer in '72 that would raise it to the level of Special Order status... ? Not much.

They don't stick these in there for a hot set of plug wires:

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Last edited by Elliott : 07-08-2009 at 10:05 PM.
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  #17  
Old 07-09-2009, 10:10 PM
pablo_max pablo_max is offline
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ok..so it's actually not H. It's J2M144OH22....
Also, there is not really too much stock on the motor so..not air cleaner or valve cover.
__________________
1972 Wagoneer
401 w/edelbrock Performer manifold and Holley Truck avenger
Complete MSD ignition system with rev limiter and billet distributor.
4inch lift.
t-18/D20
E-Z wiring kit.
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  #18  
Old 07-10-2009, 10:51 AM
joe joe is offline
 
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[quote=pablo_max]ok..so it's actually not H. It's J2M144OH22....
quote]
According to the H(8th digit) in the VIN it came with a 304
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  #19  
Old 07-10-2009, 11:22 AM
pablo_max pablo_max is offline
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yup..you are right. I'm glad someone swapped it out at some point!
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1972 Wagoneer
401 w/edelbrock Performer manifold and Holley Truck avenger
Complete MSD ignition system with rev limiter and billet distributor.
4inch lift.
t-18/D20
E-Z wiring kit.
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  #20  
Old 07-10-2009, 11:36 AM
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babywag babywag is offline
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The special sales order tag could simply mean someone filled out an order form @ a dealership vs. buying one off the lot?

Still cool though...I've never seen one on a wagoneer before.
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