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- - 250 monojet carb to intake gasket help (https://67-72chevytrucks.com/vboard/showthread.php?t=678151)

Custom/Ten

07-31-2015 04:48 PM

250 monojet carb to intake gasket help

1 Attachment(s)

Just got my new gasket and it's about 1/8 inch thick. The old one that's on there is about 3/8 in thick. Just wondering if anyone has an explanation for this. Here's a pic of the oldAttachment 1431640

Custom/Ten

07-31-2015 04:49 PM

Re: 250 monojet carb to intake gasket help

1 Attachment(s)

Here's the new oneAttachment 1431641

Custom/Ten

07-31-2015 04:54 PM

Re: 250 monojet carb to intake gasket help

1 Attachment(s)

Could even be two gaskets, any reason somebody would do that?Attachment 1431642

Fatherof3

07-31-2015 05:47 PM

Re: 250 monojet carb to intake gasket help

Thick gaskets are a popular way of reducing engine heat from over heating the carb and boiling the fuel.
The thick gasket becomes an insulator between the intake manifold which is heated by the exhaust and the carb.

Custom/Ten

07-31-2015 06:04 PM

Re: 250 monojet carb to intake gasket help

Quote:

Originally Posted by Fatherof3 (Post 7259747)

Thick gaskets are a popular way of reducing engine heat from over heating the carb and boiling the fuel.
The gasket becomes and insulator between the intake manifold which is heated by the exhaust and the carb.

Thanks for the response! I wonder if I can get the bigger gasket somewhere.

65standard

07-31-2015 06:38 PM

Re: 250 monojet carb to intake gasket help

There are thicker gaskets. The one that came with my carb rebuild kit was about 5/16 thick.

Custom/Ten

07-31-2015 08:06 PM

Re: 250 monojet carb to intake gasket help

Quote:

Originally Posted by 65standard (Post 7259795)

There are thicker gaskets. The one that came with my carb rebuild kit was about 5/16 thick.

Where did you get your rebuild kit from?

65standard

07-31-2015 08:11 PM

Re: 250 monojet carb to intake gasket help

I bought an NOS Delco carb kit on eBay for $15.

Custom/Ten

07-31-2015 08:15 PM

Re: 250 monojet carb to intake gasket help

Ok thanks standard

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