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post #1 of 9 (permalink) Old 01-20-2012, 08:03 PM Thread Starter
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390 pros and cons

would like to get pros and cons of getting a 66 t-bird 390 and c6 for possible use in a 66 fairlane which currently has a 351w and c4.

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post #2 of 9 (permalink) Old 01-20-2012, 11:29 PM
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Re: 390 pros and cons

It depends on what you want as a personal choice. FEs and Ws are different animals, and what is better for one guy is not necessarily what you're after, and the reason you're doing all the work and paying all the money. Totally disregarding the personal preferences and the 'aura' surrounding each engine , there are a few pros and cons form a technical standpoint, such as:
  • FEs are cool
  • Ws are lighter
  • Fes are cool
  • Ws cost less to build per HP
  • Ws are easier to work on in the engine bay
  • Ws are easy to get parts for anywhere
  • FEs are still cool
  • Ws are more efficient
  • Ws will stay in your car with zero mods
  • Ws offer better handling
  • FEs are cool
  • C4s are more efficient and consume less power
  • C6s can hold more power than you could ever make
  • C4s can also
  • C4 will require no mods to keep
  • C4 has more performance options
  • C4 performance parts are a bit cheaper
  • C6s are cool
That covers a lot of it, and BTW - I think FEs and C6s are cool. But, why are you thinking of changing from what you have already?


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post #3 of 9 (permalink) Old 01-22-2012, 11:59 AM
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Re: 390 pros and cons

I agree with the fe are cool, and a windsor is easier and cheaper. but i have a 67 fairlane with a 390 gt motor, up graded with 428 cj heads 427 low riser 2x4 intake and a good cam, yes it is difficult to change spark plugs and work on, but when i pop the hood and show someone what is under it, it is a WOW factor awsome and of course way COOL. Good going with your car.
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post #4 of 9 (permalink) Old 01-22-2012, 01:49 PM
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Re: 390 pros and cons

I agree...The windsor is probably the more practical engine to use while the FE is cool and will have a little more wow factor if you show the car..

1968 mustang 408W Hybrid..Burns gas and rubber!
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post #5 of 9 (permalink) Old 01-24-2012, 07:01 PM Thread Starter
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Re: 390 pros and cons

not interested in showing, I bought the car (66Fairlane 500) about 1-2 years ago and am slowly geting her ready for the road. floors, trunk, interior etc. car had a 351w with c4 when I got it. haven't even drove it yet, so I may like the 351w and not want to change it. I came accross a 66 390 and c6 out of a t-bird for a pretty good price and was thinking of picking it up and was wondering what concensus was with Fairlane crowd with switching over to 390. I know there is a suspension concern, motor mounts,drive shaft, trans crossmember and shifter linkage. accelerator pedal and linkage. what else am I missing for change over?
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post #6 of 9 (permalink) Old 01-24-2012, 09:30 PM
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Re: 390 pros and cons

The MAIN reason that the FE is cool is the SOUND. It FAR out classes a whippy little 351 Windsor sound, no matter what exhaust you put on it.

NOTHING sounds like an FE! Plus they're Cool!
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post #7 of 9 (permalink) Old 01-25-2012, 09:14 AM
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Re: 390 pros and cons

If you go the 'bird 390 route the exhaust manifolds and heads won't work. You'll need 390 GT type heads with the diagonal bolt pattern and exhaust manifolds to fit. Some people have cut and chopped their way to using the vertical bolt type 390 heads but it creates issues. So what I'm saying is everything won't fit but using the T-bird engine.

1966 Fairlane 390/4Spd
1964 Mercury Comet 427FE Pro Street
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post #8 of 9 (permalink) Old 01-25-2012, 12:49 PM
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Re: 390 pros and cons

As for the heads, you dont have to have the 390 GT heads (i.e., 14 bolt pattern exhaust flange). The standard vertical 8 bolt heads will work. FPA headers make a tri-y header for the 8 bolt pattern, which is also interchangable with the 16 bolt heads to fit the F/T's. You just specify what header flange you want. They aren't exactly cheap, but if your bound and determined, they are an option.
Check your radiator, FE's inlet to the water pump is on the drivers side. Transmission cooler lines is another one to add to your list.
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post #9 of 9 (permalink) Old 01-26-2012, 04:31 PM Thread Starter
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Re: 390 pros and cons

I agree with everything, thanks for the input. like I said befaore, I may just keep 351w in it for now. Might just get the t-bird 390 anyway. if for nothing else....they're cool
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