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Thread: Extractors off 3.5 fit a 3.9?

  1. #1
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    Extractors off 3.5 fit a 3.9?

    I have a set of Genie headers (extractors) in my shed in excellent nick, they came off a friend's 87RRC when he took out the 3.5 in favour of a 4.4. They would not fit up to the 4.4, I'm wondering whether they will fit on my 94 soft-dash 3.9 and whether they would be worth fitting. Anyone know?

  2. #2
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    Yep and nope

  3. #3
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    They will fit ............

  4. #4
    Rangier Rover Guest
    Yes they fit but.....You may find the stock Efi manifold will flow better as is

  5. #5
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    Thanks for the replies. I've always reckoned the stock EFI exhaust manifolds are a very good design and more reliable than extractors, the friend with the 87RR said they did make an improvement to his 3.5 but upon reflection his was a carby model, he put EFI on it after the 4.4 conversion.

    Now to find where my other thread has gone...?

  6. #6
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    Quote Originally Posted by POD View Post
    Thanks for the replies. I've always reckoned the stock EFI exhaust manifolds are a very good design and more reliable than extractors, the friend with the 87RR said they did make an improvement to his 3.5 but upon reflection his was a carby model, he put EFI on it after the 4.4 conversion.

    Now to find where my other thread has gone...?
    Why are they more reliable?
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

  7. #7
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    Quote Originally Posted by Slunnie View Post
    Why are they more reliable?
    I mean in terms of longevity, as cast manifolds don't rust out like extractors do, also less problems with manifold-to-head leaks although I think the more modern extractors are not as bad in that regard as they used to be.

  8. #8
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    I like them, but have no car that i have fitted them to, so hence i have 3 sets of extractors hanging in the shed....

  9. #9
    McDisco Guest
    Quote Originally Posted by sclarke View Post
    I like them, but have no car that i have fitted them to, so hence i have 3 sets of extractors hanging in the shed....
    You running a wreckers from your place Steve?! Better be careful you dont run foul of the Council....

    I know who to call though if I buy a rangie and need some bits...

    Angus

  10. #10
    timbocruiser Guest
    i just pulled a set of headers (extractors) off a rangie im wrecking atm, had a 2.5 inch system after them aswell, has to make a difference! they standard pipe design isnt very efficient. built to last but not to be efficient.

    putting the complete system on tommorrow, will put up the results before and after!

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