[Spridgets] Manifold flange thickness

derf derf247 at gmail.com
Sat Sep 5 15:43:27 MDT 2020


I sit corrected.  It's been a while since I had a manifold off.  Seems like
my Titan single HIF6 intake had a separate gasked, though.

On Sat, Sep 5, 2020 at 4:39 PM Weslake1330 <weslake1330 at gmail.com> wrote:

> On the A-series it should be a single gasket that seals both the inlet and
> the exhaust ports at the head.
>
> On Sat, 5 Sep 2020 at 22:37, derf <derf247 at gmail.com> wrote:
>
>> I would carefully grind washers.  Even if both flanges are the correct
>> thickness you will most likely have gaskets of differing thicknesses.
>>
>> On Sat, Sep 5, 2020 at 4:31 PM Weslake1330 via Spridgets <
>> spridgets at autox.team.net> wrote:
>>
>>> I would contact Maniflow and ask them what the correct thickness is to
>>> establish if the exhaust is incorrect or if the inlet manifold is correct
>>> and then invite them to send a replacement part.  I'd also want to be sure
>>> that something that is claimed to be made by Maniflow really is.
>>>
>>> Regards
>>>
>>> Daniel S
>>>
>>> On Sat, 5 Sep 2020 at 20:12, Rick Fisk via Spridgets <
>>> spridgets at autox.team.net> wrote:
>>>
>>>> Send it all back to Maniflow and tell them to get their shxt together.
>>>> No excuse for this kind of BS.  They make both parts and they don't match?
>>>> Ridiculous.
>>>>
>>>> Have you contacted them?
>>>>
>>>> Rick
>>>>
>>>> Sent from my keyboard
>>>>
>>>> On Sep 5, 2020, at 2:45 PM, Michael MacLean via Spridgets <
>>>> spridgets at autox.team.net> wrote:
>>>>
>>>> 
>>>> Have the exhaust faces machined down 35 thou.  Being both Maniflo they
>>>> should have matched thicknan.  I have the LCB header (I don't know who
>>>> makes it) on my 1275 and a Titan intake manifold for my single HIF44 carb.
>>>> They match perfectly. Supposed to be a standard thickness for the flanges.
>>>> Mike MacLean
>>>>
>>>> On Saturday, September 5, 2020, 11:22:59 AM PDT, Hal Faulkner via
>>>> Spridgets <spridgets at autox.team.net> wrote:
>>>>
>>>>
>>>> Listerati,
>>>> Trying to get off my rear end and make some progress in my long term
>>>> overhaul of FROG AYE, my 1960 Frogeye. The engine is now a 20 over 1275
>>>> with some porting, oversize valves and VP-SP3 cam. I have replaced the old
>>>> 3 to one exhaust manifold with a Maniflow LCB, the intake manifold is also
>>>> by Maniflow, for the HS-2 carbs that came with the car.  The concern I have
>>>> is that the flange is thicker on the exhaust than on the intake.  Torquing
>>>> the manifolds until the exhaust just touches the block (no gasket for this
>>>> measurement) leaves the intake manifold with about 35 thousands play.  Of
>>>> course, this can be taken up in the gasket, but that leaves the washer on
>>>> the intake side (of the common studs) sitting at a noticeable angle, which
>>>> ,if nothing else, doesn't look very cool.  The attached photo shows about
>>>> .035" of feeler between the washero and the intake manifold flange.  The
>>>> exhaust manifold is snug.
>>>>
>>>> What would you do?
>>>>
>>>> ------------------------
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>>> ------------------------
>>>
>>> spridgets at autox.team.net
>>>
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>>
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