Aluminum intake?

[NIKDS350]

I know all the problems, but i have found aluminum intakes for bbc that have brass inserts in the water side to prevent corrosion. One problem, I need one for a sbc. does anyone know where to find one? who makes them etc... any help would be appreciated! Thanks.

 

[John_S]

Re: Aluminum intake?

Being down the road in Elmira, have to ask, "Are you planing to boat in salt or brackish water?". If just fresh water, don't need the bronze or anodized.

 

[jtmarten]

Re: Aluminum intake?

+1
I've run standard aluminum intakes on other boats for years in fresh water with no issues.

 

[Friscoboater]

Re: Aluminum intake?

Yep me too. Aluminum here with no problems

 

[wca_tim]

Re: Aluminum intake?

ditto.... water jackets look fine when they come off for various upgrades too...

 

[tfret]

Re: Aluminum intake?

I'm just curious. What benefit does an aluminum intake provide over the stock iron?

 

[jtmarten]

Re: Aluminum intake?

Much better flow=increased power, and prob half the weight.

 

[cpt ron jc]

Re: Aluminum intake?

i bought a eddlebrock 2111 for my 4.3 main intake,im not sure if i can use it,the threrm.houseing is at an angle ,hoses will not work,people have told me hoses will hit the alta,and belts.

 

[Bondo]

Re: Aluminum intake?

i bought a eddlebrock 2111 for my 4.3 main intake,im not sure if i can use it,the threrm.houseing is at an angle ,hoses will not work,people have told me hoses will hit the alta,and belts.

Ayuh,.... There's 2 Choices for mounting the T-stat housing on that manifold....
As noted in your thread,...
Just use the forward facing holes....

 

[zbnutcase]

Re: Aluminum intake?

And last but not least, lets not forget that outboards are made of aluminum, and they last just fine.

 

[wca_tim]

Re: Aluminum intake?

And last but not least, lets not forget that outboards are made of aluminum, and they last just fine.

some big differences there... different alloy and also, with an I/O the majority of the engine is iron... that means that an aluminum manifold acts as a sacrifical anode in galvanic corrosion...

I actually run pencil anodes screwed into my intake, heads and exhaust manifolds now (all are aluminum)...

 

[cpt ron jc]

Re: Aluminum intake?

Ayuh,.... There's 2 Choices for mounting the T-stat housing on that manifold....
As noted in your thread,...
Just use the forward facing holes....

thank y for the info

 

[wire2]

Re: Aluminum intake?

Much better flow=increased power, and prob half the weight.

68 lbs for 5.7 GM stock iron,
16 lbs for my Holley alum hi rise.

 

[John_S]

Re: Aluminum intake?

some big differences there... different alloy and also, with an I/O the majority of the engine is iron... that means that an aluminum manifold acts as a sacrifical anode in galvanic corrosion...

And most outboards auto drain removing any conductor between the metals.

 

[NIKDS350]

Re: Aluminum intake?

Thank you all!