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Old 05-02-2014, 07:19 PM
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Intake Gaskets

Hi
Got a quick question on intake gaskets on sbc
They have the sealant bead as show in pic on one side only. Does it matter which surface it mates onto? I planed on putting it 'up' and putting cement on the plain underside (head), torquing it snug, letting it set and match trimming the gasket at the ports where it overlaps slightly.
Also, should I put gasket cement as well as the factory sealant bead? or is the bead sufficient?
Another question, the gasket does not fully cove the heat exchange holes in the head, does that matter seeing as though the manifold is blank at that point ? Or should I trim up a piece of gasket and glue it in to fill up the missing section?
Thanks


Duke
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Old 05-02-2014, 07:28 PM
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If that dip in the central heat riser section of the gasket leaves some of the exhaust crossover opening in the cylinder head uncovered, then you will have an exhaust leak.....so you will need to fully cover thatwith gasket material if your head has a heat crossover.

You actually have the wrong gasket for a head that has a exhaust crossover

That gasket is actually made for aftermarket aluminum heads that have a water port in the head right there, and the intake manifold would have the same notch as the gasket, so an AN fitting could be screwed into the head right there to pull water out of the center of the head....a racing deal.

No sealant on the bead side, but I like to glue them down on the other side, with gasket cement like Edelbrock Gasgasinch or Permatex Aviation High-Tack. Or good old weatherstrip adhesive ("gorilla snot")
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Old 05-02-2014, 07:39 PM
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Thanks Eric , the opening in the head , the cross over appears to go nowhere?
(world sportsman 2 heads) see pic. I stuck a screw driver in and it's a 'no-through-hole'. Am I still good?? What about the factory bead on the gasket?
Thanks


Duke
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Old 05-02-2014, 09:54 PM
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You'll be okay with that gasket and the Sportsman head, as long as the exhaust crossover port hasn't been opened up to the back of the exhaust valve bowl(port).

Would be cast blocked off from World Products, has to be drilled by the end user if they want or need the exhaust for emissions or carb heat.

I use just the factory bead, no additional sealer on the bead side.
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Old 05-03-2014, 04:12 AM
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Thanks mate


Duke
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