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-   -   1972 CJ5 with AMC 360 V8 Information (https://www.jeepforum.com/forum/f8/1972-cj5-amc-360-v8-information-4436017/)

CrustyCJ5 06-22-2021 10:03 AM

1972 CJ5 with AMC 360 V8 Information
 
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Hey guys - I've just picked up a cheap 1972 CJ5, I didn't get a ton of information around it so was looking to get some questions answered, hoping this would be the right place!

My main question is it has an AMC 360 V8, not an AMC 304 or V6 - the previous owner was told it was the original factory engine to the Jeep, is that possible? He mentioned it was rare for them to be fitted with the 360, I'm looking to see how valid this claim might be. I wasn't able to find much info about any CJ5s with factory 360s.

Here's a picture below, not the prettiest (someone painted the entire thing with brushed brown paint, made it look like a rust bucket) but it runs and drives and doesn't need panel work. Any other interesting info about this model, or anything that is a must upgrade (most of it looks original) would be greatly appreciated. Looking forward to this summer project.

Thanks!!

RiverandSand 06-22-2021 11:05 AM

Unfortunately a 360 was never offered in a CJ, 304 was the only V8 offered. It also appears to be a later year model possibly 76 or newer. Is windshield wiper motor on the inside bottom left of the windshield frame? Also the front turn signals are larger round than smaller ones on the earlier CJs. How's the frame, check for rust and possible patches.

CrustyCJ5 06-22-2021 11:50 AM

Thanks for the reply - Agreed I'm skeptical it's a factory engine, going to dig in this week to look for evidence of a swap. Yes the wiper motor is mounted to the windshield frame bottom left. Frame and body are in surprisingly great shape (besides the paint color :laugh2:) which is one of the reasons I picked it up.

Fourtrail 06-22-2021 12:01 PM

Quote:

Originally Posted by RiverandSand (Post 41298491)
Unfortunately a 360 was never offered in a CJ, 304 was the only V8 offered. It also appears to be a later year model possibly 76 or newer. Is windshield wiper motor on the inside bottom left of the windshield frame? Also the front turn signals are larger round than smaller ones on the earlier CJs. How's the frame, check for rust and possible patches.




That tub is a 72-75 CJ-5. Look at the location of the Jeep stamping in the tub. 72-75 was still high on the panel with lowercase e's. Does look like the windshield has been swapped for one from a later model.

CrustyCJ5 06-22-2021 02:14 PM

Yea the windshield does look like it's been swapped from a later model, the original paint colors do not match up. The VIN matches a 1972 CJ5 304 w/ Toledo 3-spd/LHD.

RiverandSand 06-22-2021 06:36 PM

Quote:

Originally Posted by Fourtrail (Post 41298529)
That tub is a 72-75 CJ-5. Look at the location of the Jeep stamping in the tub. 72-75 was still high on the panel with lowercase e's. Does look like the windshield has been swapped for one from a later model.

Ah thanks..I got hung up on the windshield frame and missed the jeep logo position. Those 72 to 75s are definitely unique.

Hurricane4 06-22-2021 07:38 PM

Those front leaf spring shackles look scary.

bob4703 06-23-2021 07:24 AM

The 360 claim may be a selling point. Don't think you can tell the difference between a 304 and a 360 just by looking.

W/S wiper motor should be on the outside. Wipers are 180* out but if the PO used the original wiper motor on the inside they will run backwards. No sweat it they work. It should have low back seats too. Front of frame and shackle brackets need to be inspected closely.

Please fill out your profile so we can know more about you.

Good luck!

Fourtrail 06-23-2021 08:50 AM

Quote:

Originally Posted by bob4703 (Post 41299027)
The 360 claim may be a selling point. Don't think you can tell the difference between a 304 and a 360 just by looking.


you just finger the block behind the drivers side motor mount to find the displacement...>:)

Matt1981CJ7 06-23-2021 09:01 AM

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Quote:

Originally Posted by Fourtrail (Post 41299097)
you just finger the block behind the drivers side motor mount to find the displacement...>:)

Yup, the displacement is cast into the block, but it's not easy to see when the engine is installed.

Matt

bob4703 06-23-2021 02:30 PM

If you looked at two Jeeps sitting side by side with the hoods raised one with a 304 and the other with a 360 could you tell the difference by looking?

Fourtrail 06-23-2021 02:33 PM

Looking, no, touching yes.

Matt1981CJ7 06-23-2021 03:02 PM

1 Attachment(s)
Quote:

Originally Posted by bob4703 (Post 41299309)
If you looked at two Jeeps sitting side by side with the hoods raised one with a 304 and the other with a 360 could you tell the difference by looking?

Yes, if the original build tag was still on the passenger side valve covers, and you knew how to decode them.

But I get what you are saying. The 2 engines look identical.

Matt

CrustyCJ5 06-23-2021 06:50 PM

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Yea from what I understand the blocks are the same, just different bores. Correct, the displacement is cast right under the driver side mount.

BagusJeep 06-24-2021 06:01 AM

The VIN numbers were not put on the blocks and the cast numbers were shared between years and displacements. The only other way of checking is to find the cylinder head cast numbers, which were year specific, and looking for dates on the manifold.

No 360 V8 was supposed to leave the factory in a CJ5 but that does not exclude a dealer fit or a little experimentation at the factory. Replacement / service blocks were often produced for replacements without any number cast in the side, but that may not be a rule.

However, if you find the heads are a different year, it would most defo not be a factory 360 and not a "holy grail" CJ.


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