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  1. #1
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    Rover V8 exhaust manifolds

    In an AK, an LS engine uses OEM corvette manifolds and J pipes welded to a flange, which is then bolted to the manifolds.

    I’m wondering if anyone has used the same principle on a Rover V8, OEM manifolds with side pipes?

    Maybe like these?

    https://rover.ebay.com/rover/0/0/0?m...2F282722533937
    Regards

    Craig Perry

    No, I'm not "repairing" it, I'm fine tuning its performance.

  2. #2
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    Cant see why it wouldn't work.

    The only thing is the LS headers angle the pipes forward, so you may have to angle the rover j pipes around the footwells as the p6 headers shown in your link point downwards centrally so may not be far enough forward to clear the footwells
    ANTHONY
    Absolute Horsepower Ltd
    Home of the CR427

  3. #3
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    Do you mean 4 into one, then to four again to the side pipes? If so, should be fine - you'll still need to navigate past the steering column though.
    DAX Cobra. May contain nuts. Always read the label.

  4. #4
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    My main concern was do the terminate high enough to clear the chassis rails?

  5. #5
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    If the outlet from the manifold is at a similar height to the LS I don't see why it wouldn't work.
    As said navigating the steering shaft will be fun.
    Are you going back out to OEM style side pipes?
    Kev Davies
    South Wales Area Rep. UKCC Membership Secretary
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  6. #6
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    Quote Originally Posted by kdavies3 View Post
    Are you going back out to OEM style side pipes?
    No, I have AK side pipes, I’m just looking for the path of least resistance to creating a pair of manifolds.

    Having made my own manifolds on my first build from a box of bends, and following the instructions on an LS AK, I can tell you, the AK principle is much easier !!

    Those manifolds are 175mm from top to bottom, need to do some measuring now.
    Last edited by cperry; 30-11-17 at 08:03 PM.

  7. #7
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    It is possible to use the RV8 manifolds, this is how I modified the LS manifolds.
    Attached Images Attached Images
    Stan

  8. #8
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    Without modification, a 175mm manifold plus a 63mm j pipe will only give me about 20mm vertical clearance to the chassis rail. Could someone measure vertically between the chassis rail and the j pipe on an LS AK??
    Last edited by cperry; 30-11-17 at 10:40 PM.

  9. #9
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    Got the manifolds, it looks like it might work.

    Can I ask, can you weld straight onto a cast manifold? I’m thinking that cast material doesn’t lend itself too readily to welding?

  10. #10
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    You can but it's not easy. Better to brazen or silver solder onto the manifold...

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