Tell me all the reasons to NOT use an AMC 360 - JeepForum.com
 
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post #1 of 8 Old 06-07-2015, 07:23 AM Thread Starter
CJKevin1978
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Tell me all the reasons to NOT use an AMC 360

My Jeep has a 727 auto trans and the 258 6-cyl. I am looking to upgrade the engine to a V8. I understand all the pluses of the SBC but I have read that the 360 is a pretty painless swap. Without getting into the benefits of the Chevy conversion, what are the negatives of the 360?

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post #2 of 8 Old 06-08-2015, 08:42 PM
gremlinsteve
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post #3 of 8 Old 06-09-2015, 04:28 AM
jeepdaddy2000
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Agreed.
If you are sold on a V8 swap, the 360 is the easiest and cheapest upgrade you can get.
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post #4 of 8 Old 06-09-2015, 09:09 AM
dirtdudeaz
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Any AMC's will be fairly painless... 401 would be the only reason NOT to, but with there seeming to be more 304's and 360's floating around, I think it's a good choice as well for a v8 swap.

I guess it depends on budget, comfort of skills for any fab required, and your goals for the Jeep. If you have a 360 laying around already or have a modest budget, then do it; if you have some money to spend, want to go fuel injected, and want a more modern engine I like the GM 5.3 swaps personally.
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post #5 of 8 Old 06-09-2015, 01:50 PM
82_CJ8
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I couldn't think of a reason not to either. So I did it.
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post #6 of 8 Old 06-21-2015, 11:58 AM Thread Starter
CJKevin1978
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I have found a 1980 J10 pickup with a 360 and a 727 trans (my CJ already has this trans). He has offered the engine at $600 (he has to take it out) or the whole vehicle at $1000. The bed and roof have been removed for another project but the truck is supposed to be drive-able. What other parts could be usable or easy to sell? I would probably keep the trans as a spare and I am assuming the transfer case is the same but I don't know that a this point.
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post #7 of 8 Old 10-23-2015, 04:44 PM Thread Starter
CJKevin1978
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After much flip-flopping over what to do for an engine, I finally picked up a 360 engine that is supposed to only need a distributor and water pump. The problem I think I may have is the flexplate/flywheel. This engine was from a manual trans-ed J10 and still has the clutch attached. Based on what I am reading I will need a different flex plate than what I now have on my 258.

New plates seem pretty cheap but is the bolt pattern on the torque converter universal? Does the trans and/or starter have any bearing on the selection of flex-plates?
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post #8 of 8 Old 10-30-2015, 03:23 AM
DaemonForce
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The only things bothering me about a L6 to V8 swap are motor mounts and the following drivetrain alignment. The ECM will be different but the whole thing is an easy tune. Only reason I wouldn't do a 360 is because my builds always seem to go the experimental route and I'd be tempted to use a 401 crank.

The transmission + starter + flexplate are kind of a 3-way marriage that depends on a few other electronic/hydraulic things.

Behind my 258 I would be using a 998 transmission and factory flexplate for the 258. Now that I'm replacing the 258 with a 4.0, the 998 needs to be modified and I intend to use an Z-338 plate to handle the crank trigger. Not sure how I'm supposed to approach this with a manual transmission but unless you're updating a 360 with electronic triggers and EFI, there's nothing to worry about.
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