Permatex Gasket Makers

Discussion in 'Cooling Systems' started by chromebumpers, Sep 12, 2021.

  1. chromebumpers

    chromebumpers solid fixture here in the forum Staff Member

    For some reason the paper gasket I got for the T stat neck doesn’t fit exactly the way I feel comfortable, the bolt holes are not lining up 100%.
    I have a half dozen different types of Permatex, Red Spray on, Black RTV, Aviation brush on, the Blue type, and light gray.
    Can I just use Permatex without the paper gasket on the thermostat and will it hold?
     
  2. B&R Racing

    B&R Racing reliable source of info

    If it's for the 1968 Pontiac Catalina they only sell Universal slotted fit Paper Thermostat housing gaskets now.
    Universal fit for a Chevy V8, AMC V8, Buick V8, Cadillac 472-500, Oldsmobile V8, and Pontiac V8.
    Its actually not correct fits loose on Pontiac 350, 400, 428 455 intake manifolds .
    Sucks .
    I had a couple of Early production Felpro Pontiac V8 Thermostat paper gaskets exact fit.
    Know I took One from a Master Racing Felpro Racing gasket set for a Pontiac V8.

    You must use a paper gasket or it will leak.
    RTV Silicone will not seal a Pontiac V8 V8 Thermostat housing to intake manifold tried it once years back.
    A gusher leak once the engine fired up.

    On Ebay Its one if the items I look out for Vintage Felpro NOS +20 years 1990s production exact fit Pontiac V8 T-stat housing paper gaskets.

    Right now only one company makes it New exact fit for a 1955-81 Pontiac V8 T-stat paper gasket.
    Inline Tube company in Michigan they sell on ebay.
     
  3. B&R Racing

    B&R Racing reliable source of info

    Universal fit gasket fits a Chevy V8 perfect what it is made for !
     
  4. B&R Racing

    B&R Racing reliable source of info

    You already know have to stock up and Hoard away Pontiac Poncho parts.

    Chevy V8 all now too.
    China Covid 19
     
  5. B&R Racing

    B&R Racing reliable source of info

  6. chromebumpers

    chromebumpers solid fixture here in the forum Staff Member

    Thanks again Brian!! I was about to use the Aviation sealant I bought on your recommendation. Permatex does say it can be used at the T stat location without the paper gasket, but if you say it won’t work then I’ll go with what you say. It’s funny, I looked at “My eBay” and there it was, T stat gaskets from Inline Tube and I never entered them or that gasket viewed, how?
     
    B&R Racing likes this.
  7. B&R Racing

    B&R Racing reliable source of info

    Everything We Enter Type in on Gtumpys is Tracked by Big Brother Google because Grumpy made his site Google Search Engine usable.
    It was even worse when I was on FB Yet Super Bots Algorithms they have.
     

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