Whats the Stock carb cfm???69 Charger R/T 440

[Charger43]

What's the Stock carb.CFM??
69 440 Charger R/T?

What's are you guys running on a stock
Rebuild 440 10:1?

[Kern Dog]

Rick Ehrenberg said that it was 580 cfm. Carter was really secretive about their flow rates. 

[green69rt]

Rick Ehrenberg said that it was 580 cfm. Carter was really secretive about their flow rates. 

That's what I remember.  Carter, Holley, probably others all measured their flow rates different (IIRC) so the number didn't mean much unless you were comparing Carter to Carter, etc.

[Challenger340]

I think some of the 'published' cfm numbers for the Carter #4618 4 BBL AVS used on the 1969 440 Magnum Engines was around 800 cfm ?

I just happen to have a SuperFlow SF750 Flow Bench in my shop ?
and....
I will be rebuilding my untouched/un-rebuilt numbers matching original 440 Magnum in my '69 Charger R/T SE this winter..... so I'll get some REAL cfm numbers at that time, because I'm curious as well ?
I'm still kinda shocked at how great that Carb is ?
It Starts/Chokes/High Idles, then runs and drives amazingly well for being 50+ years old..... never skips a beat.... NEVER had a problem with it.... I'm almost scared to even touch the thing for fear of screwing something up !

We typically Flow at 1.5 hg for all Carbs so the numbers are comparable across all brands ie: Holley/Carter/Thermo-Bogs/whatever.

[green69rt]

I think some of the 'published' cfm numbers for the Carter #4618 4 BBL AVS used on the 1969 440 Magnum Engines was around 800 cfm ?

I just happen to have a SuperFlow SF750 Flow Bench in my shop ?
and....
I will be rebuilding my untouched/un-rebuilt numbers matching original 440 Magnum in my '69 Charger R/T SE this winter..... so I'll get some REAL cfm numbers at that time

We typically Flow at 1.5 hg for all Carbs so the numbers are comparable across all brands ie: Holley/Carter/Thermo-Bogs/whatever.

I'd be interested in the data.

[Challenger340]

What's the Stock carb.CFM??
69 440 Charger R/T?

What's are you guys running on a stock
Rebuild 440 10:1?

A little off topic here..... but how do you know it is a 10:! "rebuilt" 440 ?   

Because the 'published' rebuilder style cast Piston Compression Ratios are all wrong, meaning......  unless you opted for Forged Pistons or a KB Hyper Pistons your actual CR may be much lower than you think ?

[Mike DC]

I will be rebuilding my untouched/un-rebuilt numbers matching original 440 Magnum in my '69 Charger R/T SE this winter..... so I'll get some REAL cfm numbers at that time

That black & tan '69? 

It needs rebuilding? 

[Challenger340]

I will be rebuilding my untouched/un-rebuilt numbers matching original 440 Magnum in my '69 Charger R/T SE this winter..... so I'll get some REAL cfm numbers at that time

That black & tan '69?  

It needs rebuilding?  

Nope, it doesn't NEED it per se.... it is still a good strong running 440 that has shocked the shit 'outa many people ?

Problem is I am getting older....
and I dunno how many more years I will keep a complete full service Machine Shop capability here on my property ? let be when a guy gets into his later 60's how much longer he will be healthy and able to do that stuff ?

So I'm gonna do it now while I'm still well able to.... and while it's still a good running Engine.

Might make kind of a neat thread to follow along here with Pics as I do it ?
After all....
I'm guessing NOT that many "original" un-touched 1969 440 Magnums still running around.... might be a definitive source of what EXACTLY was there/inside back in the day ? Cam degree/Cylinder Pressure/Crab Flows etc., etc.

[Chargerguy74]

I will be rebuilding my untouched/un-rebuilt numbers matching original 440 Magnum in my '69 Charger R/T SE this winter..... so I'll get some REAL cfm numbers at that time

That black & tan '69?  

It needs rebuilding?  

Nope, it doesn't NEED it per se.... it is still a good strong running 440 that has shocked the shit 'outa many people ?

Problem is I am getting older....
and I dunno how many more years I will keep a complete full service Machine Shop capability here on my property ? let be when a guy gets into his later 60's how much longer he will be healthy and able to do that stuff ?

So I'm gonna do it now while I'm still well able to.... and while it's still a good running Engine.

Might make kind of a neat thread to follow along here with Pics as I do it ?
After all....
I'm guessing NOT that many "original" un-touched 1969 440 Magnums still running around.... might be a definitive source of what EXACTLY was there/inside back in the day ? Cam degree/Cylinder Pressure/Crab Flows etc., etc.

Looking forward to that thread.

[BSB67]

What's are you guys running on a stock
Rebuild 440 10:1?

..... but how do you know it is a 10:! "rebuilt" 440 ?   

Exactly.

When a guy presents it this way, I always ask myself the same question.  Why?  Because it is usually wrong.

[lloyd3]

I seem to remember 780 CFM.