GASKET HELP

[UCNSTARZ]

Anyone have a holley street dominator on there chevrolet v6 with a holley 4360 "economizer" 4bbl. I cant seem to find a carb mounting gasket that will seal? Any help would be great. Itsva spreadbore set up. Thank you in advance.

 

[Ribbedroof]

Mr Gasket #56?

Which Chevy V6? 3.3, 3.8, 4.3?

Does the manifold have a spreadbore flange or square? Most Holley intakes are square flange, which will require an adapter to run a spreadbore carb.

 

[UCNSTARZ]

Mr Gasket #56?

Which Chevy V6? 3.3, 3.8, 4.3?

Does the manifold have a spreadbore flange or square? Most Holley intakes are square flange, which will require an adapter to run a spreadbore carb.

Spreadbore intake
Spreadbore carburetor
3.8 chevrolet engine

 

[Ribbedroof]

Where is the issue?

Can you post a pic of the manifold flange?

There are about a dozen different base gaskets for spreadbore carbs, a pic of the flange would help select the correct one.

 

[olds307 and 403]

Was there actually an aftermarket intake available for the V6? I would assume it is a factory 4.3 intake, the same isn't it?

 

[565bbchevy]

https://rover.ebay.com/rover/1/711-...0001&campid=5335822911&icep_item=283935744161
Probably needs a special base gasket

 

[79 USA 1]

Might take the Holley 108-118 base plate gasket. This carb was a replacement for the Q Jet in the late 70's.

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[UCNSTARZ]

Was there actually an aftermarket intake available for the V6? I would assume it is a factory 4.3 intake, the same isn't it?

I put the car together 27 years ago. Holley 4bbl intake and Carb
Speed-pro pistons 10.5
Sealed Power Cam and Lifters
3 angle valve job
TH350
And recently 4.10 posi