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going to a 360 from a 318 #2404699
11/16/17 11:42 PM
11/16/17 11:42 PM
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Crizila Offline OP
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I have a 97 318 motor that is tired. I would like to replace it with a 360 and be able to use all the 318 components - computer electronics and fuel injection. Can this be done without any problems? Thanks, John


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Re: going to a 360 from a 318 [Re: Crizila] #2404708
11/16/17 11:51 PM
11/16/17 11:51 PM
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Arlington, Texas
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bobby66 Offline
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I think magnumswap.com covers most of details of this swap. Should be pretty straight forward.

Re: going to a 360 from a 318 [Re: Crizila] #2404854
11/17/17 08:35 AM
11/17/17 08:35 AM
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360view Offline
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To have a little insurance that the air fuel ratio will not go too lean at full throttle, detonate, and damage the substituted 360, you need to swap the 23.6 lb/hr at 43.5 psi fuel injectors to something larger, like the roughly 27 lb/hr injectors of the 1994-1995 Magnum 5.9 V8. 14 hole Holley 30 lb/hr injectors might also be considered.

Another option would be increasing the fuel rail pressure above 49 psi or having a custom tune of your OBD-II PCM computer.

If you do not do any of the above, your 360 V8s danger condition would be full throttle above 3200 rpm on hot dry summer days.

Re: going to a 360 from a 318 [Re: 360view] #2405011
11/17/17 03:27 PM
11/17/17 03:27 PM
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dogdays Offline
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Your question illustrates EXACTLY why I get on my soapbox and rag people about calling the engines by their correct name.

What you call a "318" is either an LA 318 or a Poly 318 or a 5.2 Magnum. In this case I surmise the engine you want to replace is a 5.2Mag.

Likewise your "360" may be either an LA 360 or a 5.9 Mag.

Even though the engines have the same basic design and displacement (bore and stroke) there are enough differences to make correct nomenclature important.

Whether the 360 in question is a 5.9 Mag or a 360 from the LA line makes a lot of difference.

R.

Re: going to a 360 from a 318 [Re: dogdays] #2405038
11/17/17 04:13 PM
11/17/17 04:13 PM
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Originally Posted By dogdays
Your question illustrates EXACTLY why I get on my soapbox and rag people about calling the engines by their correct name.

What you call a "318" is either an LA 318 or a Poly 318 or a 5.2 Magnum. In this case I surmise the engine you want to replace is a 5.2Mag.

Likewise your "360" may be either an LA 360 or a 5.9 Mag.

Even though the engines have the same basic design and displacement (bore and stroke) there are enough differences to make correct nomenclature important.

Whether the 360 in question is a 5.9 Mag or a 360 from the LA line makes a lot of difference.

R.


Exactly


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: going to a 360 from a 318 [Re: dogdays] #2405109
11/17/17 06:27 PM
11/17/17 06:27 PM
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Eugene, Oregon
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minivan Offline
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Originally Posted By dogdays
Your question illustrates EXACTLY why I get on my soapbox and rag people about calling the engines by their correct name.

What you call a "318" is either an LA 318 or a Poly 318 or a 5.2 Magnum. In this case I surmise the engine you want to replace is a 5.2Mag.

Likewise your "360" may be either an LA 360 or a 5.9 Mag.

Even though the engines have the same basic design and displacement (bore and stroke) there are enough differences to make correct nomenclature important.

Whether the 360 in question is a 5.9 Mag or a 360 from the LA line makes a lot of difference.

R.


Makes a difference if its the 360 hemi too...

Re: going to a 360 from a 318 [Re: dogdays] #2405280
11/18/17 01:49 AM
11/18/17 01:49 AM
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N.W. Florida
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Fat_Mike Offline
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Originally Posted By dogdays
Your question illustrates EXACTLY why I get on my soapbox and rag people about calling the engines by their correct name.

What you call a "318" is either an LA 318 or a Poly 318 or a 5.2 Magnum. In this case I surmise the engine you want to replace is a 5.2Mag.

Likewise your "360" may be either an LA 360 or a 5.9 Mag.

Even though the engines have the same basic design and displacement (bore and stroke) there are enough differences to make correct nomenclature important.

Whether the 360 in question is a 5.9 Mag or a 360 from the LA line makes a lot of difference.

R.


Yesterday I began to type a similar reply. In the end deleted my thoughts with the assumption that the OP could easily find the info he's looking for with a simple Google search. But since no one else previously mentioned the difference in balancing, the OP should also take note of that.

Re: going to a 360 from a 318 [Re: Crizila] #2405346
11/18/17 08:23 AM
11/18/17 08:23 AM
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360view Offline
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To me another worthwhile question is whether it might be better to purchase one of the 408 cubic inch Magnum V8 shortblocks to use the tired 5.2/318 parts on.

Would the resale value of the vehicle improve?

Would it tow better.

Would it strain the old transmission?

Re: going to a 360 from a 318 [Re: dogdays] #2406504
11/20/17 08:15 PM
11/20/17 08:15 PM
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Crizila Offline OP
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Originally Posted By dogdays
Your question illustrates EXACTLY why I get on my soapbox and rag people about calling the engines by their correct name.

What you call a "318" is either an LA 318 or a Poly 318 or a 5.2 Magnum. In this case I surmise the engine you want to replace is a 5.2Mag.

Likewise your "360" may be either an LA 360 or a 5.9 Mag.

Even though the engines have the same basic design and displacement (bore and stroke) there are enough differences to make correct nomenclature important.

Whether the 360 in question is a 5.9 Mag or a 360 from the LA line makes a lot of difference.

R.
My Bad!! Forgive me. 5.2 to a 5.9 - and not a hemi. Magnum motors. 1997 could have been a clue, but not clear enough. I actually posted this question on another site and used the Magnum designation. I'm slipping.

Last edited by Crizila; 11/20/17 08:16 PM.

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Re: going to a 360 from a 318 [Re: Crizila] #2406642
11/21/17 02:37 AM
11/21/17 02:37 AM
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N.W. Florida
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"I have a 97 318 motor that is tired. I would like to replace it with a 360 and be able to use all the 318 components - computer electronics and fuel injection. Can this be done without any problems?"

Crizila, I'm honestly not trying to pile on, but when you ask a question as worded as you did (above), on a Mopar dedicated website, please understand that there's much that can be read into your question. The "97 318 motor" is clear. But the entire rest of the question leaves much to speculate about. If you clear all that up you'll quickly get the answers you were looking for. Not trying to get chippy, just trying to help...







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