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1974 Dart | Magnum 360 Swap Advice

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Old 03-24-2020, 03:54 PM
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1974 Dart | Magnum 360 Swap Advice

I lack experience with vintage Mopars and could use some help from you guys on finalizing a list of needed parts for this project.

Thus far, I removed the Slant 6 and cataloged the parts. The S6 has been retired.

Transmission: Old vs Newer vs Adapted
  • Old: The 904 or 727 small block pattern will bolt up to the newer 360. Column or Floor shift; rod or cable, lots of questions. Why would I go with an old 3 speed? I can't think of a single reason.
  • Newer: 46RE with an aftermarket controller from http://www.e-transcontrol.com/tcm932/; seems like a better option...controller is 750.00. Need to decide on shifter. Kickdown is cable operated; easier than the rod style.
Other Questions:
  1. Steering Link; does the S6 center link clear the v8 oil pan?
  2. Radiator / radiator mount: I know the V8 radiator is larger; are there other mounting considerations such as necessary hardware or brackets?
  3. K member: original shows impact damage, wouldn't mind replacing. Years to look for?
  4. Engine mounts? Adapt current K member with aftermarket mounts; or, better to swap K members; or buy aftermarket?
  5. Oil filter clearance:\ will the 90 degree adapter be needed?
  6. Firewall clearance: Is this a drop in fit; or will firewall mods be necessary?
  7. Exhaust manifolds / headers: What will clear
  8. Torsion bar upgrade; is this recommended?












2001 Magnum 360 w/ EZ-EFI

This is a sales flyer photo of the engine chosen by the customer.

Last edited by apexautoaz; 03-25-2020 at 04:27 PM.
Old 03-25-2020, 09:38 AM
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Nice, seems like a fun swap! Are the brakes different on 6 cyl vs 8 cyl models? I’d want that puppy to stop OK lol.
Old 03-25-2020, 10:20 AM
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Currently, there are factory disc brakes up front; upgrades are up for discussion.
Old 03-25-2020, 11:50 AM
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Look for a v8 K member as some of the magnum blocks had the car mount boss's making it a bolt in.
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