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post #1 of 2 (permalink) Old 04-19-08, 05:46 PM Thread Starter
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frown 4.2 liter engine, swap for 4.6?

I have a E-150 and the 4.2 engine is blown. Can I replace it with a 4.6 liter engine? Or what are my options. My understanding is the 4.2 liter engine for E-150 is very hard to find. If the 4.2 is interchangeable with the 4.6, what would I need to do to make it work (different tranny? different motor mounts? different hook ups?). Thanks!

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post #2 of 2 (permalink) Old 04-23-08, 01:08 PM
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Re: 4.2 liter engine, swap for 4.6?

I'd see if you could plunk in a newer 4.2L. That way you should be able to retain all the factory mounting points. I'm certain a 4.2 from an F150 would work just fine. Some things you may need to keep from the current 4.2, like oil filler tube etc. Moving up to a 4.6 may require a number of changes, including possible suspension tweaks. Make sure whatever engine you get that you get the computer and wiring harness, or you'll more than likely have problems running the thing! If you are really wanting a V8, I'd go all out and get a 5.4L with some performance goodies. I can't see justifying going from a 4.2 to a 4.6 for only 400cc more volume.

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