Aluminum 4 barrel intake question

[Don Jacks]

THAT PHIL,,,,,,,,What a guy ...HE IS THE BEST !!!!!!!

IF you say it fast enough

 

[cruzin]

Mine was a 540.

 

[real61ss]

I just realized we were discussing a 579 intake !!! My memory is getting terrible ! My 61 409 motor had a 576 intake.

 

[oldskydog]

Mine was a 540.

View attachment 101068View attachment 101069View attachment 101079

540 was for the late 60-61 340hp engine.

 

[catdoctor]

I have the 3780540 and the 3012s carb on the 348 in my 56 Chevy I like the look of the period stuff. One day I’ll get to here it run.

 

[oldskydog]

That's the right carb.

 

[Aducati4me]

I might be willing to trade my 1961 409 579 intake with the correct 3270s carb for a 540 intake with a 3012s if anyone would like to make the swap. I have an FJ block I'm trying to build.

 

[4spd409]

The carb pictured appears to be a WCFB

 

[Aducati4me]

I have the 3780540 and the 3012s carb on the 348 in my 56 Chevy I like the look of the period stuff. One day I’ll get to here it run.

Is your engine a FJ?

 

[Blk61409]

Thought I would add what’s on my 61-409.

 

[catdoctor]

I wish it was, all 58 built with Ross pistons, eagle rods , balanced with a mild cam. 250 hp code. I should be able to start it soon.

 

[Aducati4me]

I wish it was, all 58 built with Ross pistons, eagle rods , balanced with a mild cam. 250 hp code. I should be able to start it soon.

Would you consider making a trade for my even rarer intake and carb since you are not trying to keep it as a factory build? It’s exactly the same as what you have other than mine was intended for a super rare 1961 409 Super Sport. (142 ever made). please Let me know. I can provide pics or whatever you need

 

[Aducati4me]

579 intake with 3270s carb for 1961 409 super sport. Willing to trade for a 540 intake with 3012s carb.
please pm me if interested.

 

[BSL409]

I have this nice 540 that someone opened the front holes so you can run a better carb
What would be the difference between the 540 and a cast 340hp 409 intake ?

 

[Aducati4me]

I have this nice 540 that someone opened the front holes so you can run a better carb
What would be the difference between the 540 and a cast 340hp 409 intake ?

What is the date code on your 540?

 

[oldskydog]

61 409m used the 776 intake, not the 579.

 

[BSL409]

What is the date code on your 540?

Sorry don’t know

 

[Aducati4me]

61 409m used the 776 intake, not the 579.

So what was the 579 actually used on? I’ve heard different stories

 

[Don Jacks]

776 was a Service Package intake for the 61 409,never used in production.

 

[oldskydog]

I beg to differ. In spite of all that has been published, the 579 was a 348 intake for the 59-early 60 320 hp engines and the 776 was the 61 409 intake. The 3270 61 carb won't work on the 579 intake due to the throttle bore size. The late 60-61 340 hp intake was the 540. It is identical to the 776 except for the intake throttle bore configuration from 4 hole to 3 hole.

The 579 was the first aluminum intake and was for the 59-60 320 hp engine.