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11-21-2011, 12:47 PM | #1 |
Registered User
Join Date: Sep 2001
Location: Fort Wayne, Indiana, USA
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Thick or thin Carb Base Gasket????
I've seen both thick and thin carb base gaskets. Is one style recommended over the other? I need to mount a Q-Jet and would like some feedback before picking up a base gasket.
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11-21-2011, 01:04 PM | #2 |
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Join Date: Aug 2009
Location: St. Paul MN.
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Re: Thick or thin Carb Base Gasket????
most q jets used a thick gasket also helps with heat so fuel does not boil
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Fuzzy |
11-21-2011, 01:13 PM | #3 |
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Location: Largo Florida
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Re: Thick or thin Carb Base Gasket????
^^^ yeap
It does depend on the intake mainfold your running. A stock Chevy intake with the exhaust passage at carburator pad will require a specific base gasket. If I remember correctly there is a weird iron intake that the thick gasket will not work with due to the gasket not covering the openning properly, it will end up with a big vacuum leak (ask me how I know). For all the spread bore aluminum intakes from the aftermarket, use the thick base gasket and you'll be fine.
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Lifes journey is not to arrive at the gate well preserved, it is to slide in sideways all used up and wore out yelling.....God what'a ride! Where patience fails, force prevails Stapp's Ironical Paradox "The universal aptitude for ineptitude makes any human accomplishment an incredible miracle." |
11-21-2011, 03:54 PM | #4 |
The Red Menace
Join Date: Feb 2009
Location: Roseburg, OR
Posts: 577
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Re: Thick or thin Carb Base Gasket????
For now I have replaced my Q-Jet with a Holley 650 which is a direct swap. I'm using the thick gasket on the stock manifold and it works fine.
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1971 Custom 10 - 350/350TH - Pwr steering, gauges, Chrome front bumper, Chrome hubcaps, Door edge guards, HD rear springs (current) 1968 C-20 Custom Camper - 350/350TH (orig 327), Pwr steering & brakes, gauges w/tach (former) 1968 C-20 - 307/3sp column (Dad's when I was a kid) "Driving is like coloring. Things get messy if you can't stay inside the lines." |
11-21-2011, 04:05 PM | #5 |
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Join Date: Jan 2007
Location: wyo
Posts: 61
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Re: Thick or thin Carb Base Gasket????
every chevy motor with a qjet came with a thick gasket
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11-21-2011, 04:30 PM | #6 |
What?
Join Date: Jun 2007
Location: Southern California
Posts: 7,617
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Re: Thick or thin Carb Base Gasket????
My 1968 327 with original cast iron intake/q-jet has always run a thin gasket, with a stainless steel base to keep the gasket from burning up. The gasket material has metal in it, so it's not the kind of gasket one could tear with bare hands.
IIRC the thick cardboard gasket with the plastic in the bolt holes didn't really get popular until the early '70s? I haven't seen that steel base for sale, since I have just grabbed them when I saw them on a junk pile.
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11-21-2011, 05:22 PM | #7 |
~Rest In Peace~
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Re: Thick or thin Carb Base Gasket????
just like my pizza crust ----thick
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11-21-2011, 06:30 PM | #8 | |
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Location: Largo Florida
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Re: Thick or thin Carb Base Gasket????
Quote:
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Lifes journey is not to arrive at the gate well preserved, it is to slide in sideways all used up and wore out yelling.....God what'a ride! Where patience fails, force prevails Stapp's Ironical Paradox "The universal aptitude for ineptitude makes any human accomplishment an incredible miracle." |
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