GASKET HELP

UCNSTARZ

Not-quite-so-new-guy
Dec 24, 2019
7
3
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

Comic Book Super Hero
Supporting Member
Jan 4, 2009
3,662
113
Wellston, OK
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.

 
Last edited:
  • Like
Reactions: Rktpwrd

UCNSTARZ

Not-quite-so-new-guy
Thread starter
Dec 24, 2019
7
3
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

Comic Book Super Hero
Supporting Member
Jan 4, 2009
3,662
113
Wellston, OK
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.
 
  • Like
Reactions: fleming442
Oct 14, 2008
6,376
113
Melville,Saskatchewan
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

Geezer
Aug 8, 2011
7,780
113
Michigan
  • Like
Reactions: fleming442

79 USA 1

G-Body Guru
Sep 2, 2011
648
93
Cheektowaga, New York
Might take the Holley 108-118 base plate gasket. This carb was a replacement for the Q Jet in the late 70's.
 

UCNSTARZ

Not-quite-so-new-guy
Thread starter
Dec 24, 2019
7
3
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
 

Please support GBodyForum Sponsors

Classic Truck ConsolesDixie Restoration DepotMike's MontesP-S-TSouthside Machine PerformanceUMI Performance

contact[email protected]for info on becoming a sponsor