How much HP loss going back to stock iron intake?

[Just 6T9 CHGR]

Im currently running a CB4B Eddy intake on my 440 with stock exhaust manifolds

How much if any of the butt dyno HP am I sacrificing if I go back to the stock iron HP manifold?   

[Ghoste]

IMO not a lot on the butt dyno, some but not so much that I would think you'll feel it greatly just driving around.

[RECHRGD]

It's hard to say.  I know that when I changed from the e-brock Performer (close to a stock unit except aluminum) to the RPM there was definitely a seat of the pants increase in power.  Bob

[firefighter3931]

It'll lose some power and be noticable. 

The CH4B is an awesome piece....if you decide to switch lemme know because i'll buy it !!! 



Ron

[Ghoste]

Would it really be that noticeable with the stock manifolds on the exit side?

[Just 6T9 CHGR]

I was hoping not ......

[firefighter3931]

Chris, if you do replace the intake the best factory piece is the 70-71 manifold. It's still a step backwards, inmo.....but that's your call. 


Ron

[Just 6T9 CHGR]

Yeah I know but I wouldn't be going for the wrong year manifold as well,  if I was going to be taking that step back....I dont want to fall on my azz while taking that step back, so to speak, as well

[rav440]

why do you want to change the CH4B back to a stock intake ? to make it factoy correct ? wouldnt the CH4B still be correct if it has the CHRYSLER part # on it ? or wasnt it offered yet as a factory ad on in 69 ?

[BrianShaughnessy]

It'll lose some power and be noticable.  

The CH4B is an awesome piece....if you decide to switch lemme know because i'll buy it !!!  



Ron

I have the ch4b off Sinnamon sitting in the basement if you need it.

I was looking for a HSD or MP M1 to run on it... someday.  


Edit: added pic.

[firefighter3931]

It'll lose some power and be noticable. 

The CH4B is an awesome piece....if you decide to switch lemme know because i'll buy it !!! 



Ron

I have the ch4b off Sinnamon sitting in the basement if you need it.

I was looking for a HSD or MP M1 to run on it... someday. 

Cool...send me a pm with your paypal info Brian 


Ron

[Sixt8Chrgr]

Is CH4B an acronym for something?

What is the best aftermarket intake for a stock 68 383-4bbl?

[Nacho-RT74]

Chriss... one thing for sure... you won't loose more than the stock specs ( and I think you are plenty... don't you ? )

[Just 6T9 CHGR]

The only reason it would come off is because Im reinstalling the factory A/C setup and Im not sure if the CH4B has the provisions for the compressor brackets in the right spots....yet

[PocketThunder]

The only reason it would come off is because Im reinstalling the factory A/C setup and Im not sure if the CH4B has the provisions for the compressor brackets in the right spots....yet

Chris what did you find out?  I'm in the process of rebuilding my engine and i want to re-install my factory A/C system.  Do i need to reuse my factory intake (boat anchor)?

Paul

[moparmoynihan]

I feel the Eddy Performer RPM is the best intake manifold out there. I had one on a warmed over 383, I felt a major differnce. I have one on my 440 with Eddy heads as well. Think about it, with the way technology has advanced with performance parts, putting that old antique on would be like running a marathon breathing through a straw.

[PocketThunder]

I feel the Eddy Performer RPM is the best intake manifold out there. I had one on a warmed over 383, I felt a major differnce. I have one on my 440 with Eddy heads as well. Think about it, with the way technology has advanced with performance parts, putting that old antique on would be like running a marathon breathing through a straw.

This one?  http://www.summitracing.com/parts/EDL-7193/

[firefighter3931]

There's not much difference between the RPM and CH4B from most of the dyno data i've seen. On a 600hp build there might be 10-12hp....as the build gets milder the returns are diminished. 

The feature i really like about the CH4B is the low height which allows for the stock throttle & kickdown linkage. A stock aircleaner assembly will also clear the factory hood if you're going for that "look" 

The RPM requires a drop base air cleaner assembly and aftermarket throttle cable & kickdown cable assemblies. That just adds complications and expense to the installation. If you have a 4spd the kickdown is a non issue.


Ron

[Chatt69chgr]

I'm also curious to know whether the CH4B was available from Chrysler in 1969 as a dealer option. 

[Just 6T9 CHGR]

The only reason it would come off is because Im reinstalling the factory A/C setup and Im not sure if the CH4B has the provisions for the compressor brackets in the right spots....yet

Chris what did you find out?  I'm in the process of rebuilding my engine and i want to re-install my factory A/C system.  Do i need to reuse my factory intake (boat anchor)?

Paul

sigh....boat anchor it shall be IF you want to be "correct" (using the tube support brackets on the compressor)   The runners are too tall & the coil mounting boss is not in the correct location (on the CH4B anyway)
I have seen cars run by using just the front & rear compressor mounting brackets only, but I figured all the extra stabilization I can get with that 50lb paper weight on the frot of the block Ill take....

[Just 6T9 CHGR]

....even went against all suggestions & I am getting the "correct" 4640SA Carter rebuilt by Scott Smith of Harms Automotive out in WA   

[Just 6T9 CHGR]

Be forewarned Paul.....the underhood A/C lines, brackets etc are 69 B Body 440 specific only!   They are a one year deal.

The front compressor bracket is the only one that will work on both the 383 & 440.....the rear bracket & the tube brackets are 440 only


Just an FYI if you dont have the stuff already....

[PocketThunder]

Be forewarned Paul.....the underhood A/C lines, brackets etc are 69 B Body 440 specific only!   They are a one year deal.

The front compressor bracket is the only one that will work on both the 383 & 440.....the rear bracket & the tube brackets are 440 only


Just an FYI if you dont have the stuff already....

Thanks.  Yes i do have everything (or at least i think i do) that came off the car that the previous owner gave me in a box when i picked the car up.  So it should be original to the car.  I guess i'll find out soon enough. 

Paul   

[Just 6T9 CHGR]

Let me know if you need help with any part ID's

[firefighter3931]

Looks good (as usual) Chris ! Any idea how much weight you've added to the car ?  

I guess her racing days are over    


Ron

[Just 6T9 CHGR]

Gotta be close to 100 lbs between the compressor, bracketry, intake, condenser etc.

Yes her legally sanctioned "track" style racing days might be limited but a few street blasts will be forthcoming.....

[firefighter3931]

It'll be interesting to see the change in ET's if the car makes it back to the track. The additional 100lbs is a tenth but any further losses will be intake + carb. It should still run in the 13's  



Ron

[Just 6T9 CHGR]

It should still run in the 13's 



Ron

....and make it the 3 hour drive to Carlisle under its own power

[PocketThunder]

It should still run in the 13's 
Ron

....and make it the 3 hour drive to Carlisle under its own power

and be nice and dry and cool all the way there and all the way back.  Maybe your spouse and daughters will want to go with then..     

[PocketThunder]

Here is the intake that was on my 69 440.  The previous owner had it plumbed up for NOS but never hooked it up.  Its a Wiend and the number on it is 7500.  I dont know what this thing is worth?..?? Anything?

Check out the valley pan modification they did to make it fit.       There was this blue sealant all over inside the engine.  This engine was rebuilt last in the early 80's. 

[firefighter3931]

Wow, somebody went through a lot of trouble to conceal the nitrous plumbing ! 


Ron

[tan top]

Wow, somebody went through a lot of trouble to conceal the nitrous plumbing !  


Ron

thats a sneaky set up    
 
have a similar intake on mine  ,  but its a Weiand 8009 action plus  , looks the same though  

[resq302]

Wow, somebody went through a lot of trouble to conceal the nitrous plumbing ! 


Ron

Ron, but he did a hell of a job conceiling it.  Kudos to that guy!

[resq302]

Chris,

Just curious if you are going to be using the exhaust cross over block off valley pan?

[Just 6T9 CHGR]

Chris,

Just curious if you are going to be using the exhaust cross over block off valley pan?

Yep I used it (same as before) BUUUUTTT....  I drilled a 5/16" hole on the pass side to give the choke coil a bit of heat.....

[resq302]

Chris,

Just curious if you are going to be using the exhaust cross over block off valley pan?

Yep I used it (same as before) BUUUUTTT....  I drilled a 5/16" hole on the pass side to give the choke coil a bit of heat.....

Ahhhhh that is a GREAT idea.  Im sure that would help with my cold start ups since it takes forever to reach normal temp.