4.3l intake manifold

SMF

Cadet
Joined
Jun 13, 2004
Messages
24
Can you use a after market 4 bbl intake like a aluminum holley to up grade a 2 bbl intake? It's for a 1986 4.3l with 12 bolts.
 

Northern Eclipse

Senior Chief Petty Officer
Joined
Jun 24, 2003
Messages
665
Re: 4.3l intake manifold

You can use a aftermarket intake just be sure to use good gaskets... If you boat in the salt I would think corrosion might be a problem..
 

bluewater19

Chief Petty Officer
Joined
Apr 25, 2003
Messages
505
Re: 4.3l intake manifold

You want to use the edelbrock performer intake for this motor they make a direct marine replacement and it will wake that motor up!!<br />I did the same thing in my bluewater.<br />You will only like this if the Idea of 10-20 hp,<br />A few mph on top speed and better part throttle fuel economy sounds like something you want. <br />Good luck!
 

Don S

Honorary Moderator Emeritus
Joined
Aug 31, 2004
Messages
62,321
Re: 4.3l intake manifold

And make sure it's a Marine carb, not an automotive.
 

SMF

Cadet
Joined
Jun 13, 2004
Messages
24
Re: 4.3l intake manifold

Thanks Guy's sounds like a good project.
 

jdtower23

Petty Officer 1st Class
Joined
May 12, 2007
Messages
220
Re: 4.3l intake manifold

Is this Edelbrock marine performer you're talking about aluminum?

John
 

fourwinnsdook

Petty Officer 2nd Class
Joined
Jun 12, 2007
Messages
176
Re: 4.3l intake manifold

Keep us posted on this, i have an 86 four winns i'de like to do the same thing to. Part #'s would be great!
 
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