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Thread: Which PCV tube?

  1. #1
    Registered User steve91tt's Avatar
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    Dec 2009

    Default Which PCV tube?

    I am swapping out my flat tops for a fresh set of round tops from ztheapy. Which PCV tube will I need? The 70 or 71-72 or something different? What's the difference?

  2. #2
    Once you've been bitten.. fiveleaf's Avatar
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    Jun 2009
    Whistler, BC -- Living in Kingston, ON

    Default J m'excuse

    You might want to try searching this forum:

    I just searched, and there's a few threads on flat-round top swaps -- but no mention of PCV tube. Sorry I can't help you.
    "Braking through corners is an advanced racing technique".
    -- Dad, quoting Fred Puhn, advising me before I drove across Canada.

    "That's aftermarket", upon discovering the 10+yr old cracked, obviously homemade, plastic seal on the inside of the rear hatch.

  3. #3
    Registered User 70 Cam Guy's Avatar
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    Mar 2009
    Walnut Creek, CA


    Are you talking about the hose from the block to the balance tube, or the hose from the valve cover to air cleaner?

    I kept the original hose for the block to balance tube connection. The person I bought the air cleaner from on ebay threw in his old hose for the valve cover to air cleaner. It looks like nothing more than 1/2" oil resistant hose (maybe a slightly larger size ID, I've never measured)
    1973 HLS30-166105
    RB20DET swap, HKS GT2530 turbo, HKS Actuator, Hallman MBC, ebay intake manifold, ebay dump pipe, straight pipe, 14 psi boost

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