Author Topic: Intake selection  (Read 1896 times)

Offline Husker Cuda

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Intake selection
« on: October 07, 2011 - 09:14:04 AM »
I am having problems sealing up my 6-pack to my heads on my 512.  Pulling oil out from under the valley cover into the intake runners.  I bought a Hughes 2 piece valley plate to try to keep the oil out of my heads.  Will the 6-pack dual plane intake work with the Hughes 2 piece vally cover or will I have to go to a single plane intake, if so which intake should I use?  This is in my Cuda with a factory Rally hood.

Mike
1974 'Cuda 512 stroker 650HP Indy heads, Hemi 4 speed, pistol grip - restored to new.
1970 GTX 440/727 Y4 Gold w/ black interior
1969 Camaro SS 396 4-speed X22
1970 Chevelle SS 396 - 375HP M22 4 speed




Offline Strawdawg

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Re: Intake selection
« Reply #1 on: October 07, 2011 - 09:30:49 AM »
What are you using for intake gaskets?

How are you sealing them to the heads and intake?

Offline Husker Cuda

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Re: Intake selection
« Reply #2 on: October 07, 2011 - 09:45:06 AM »
Used the standard valley pan using brush on sealer gaskacinch I think.  Wondering if maybe my intake was modified before I bought it.  Bought my 6 pack setup on the classified ads here on Cuda-Challenger.  I had the Mopar version of the Eddy RPM intake before I installed the 6pack and it ran much better.

Mike
1974 'Cuda 512 stroker 650HP Indy heads, Hemi 4 speed, pistol grip - restored to new.
1970 GTX 440/727 Y4 Gold w/ black interior
1969 Camaro SS 396 4-speed X22
1970 Chevelle SS 396 - 375HP M22 4 speed

Offline Chryco Psycho

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Re: Intake selection
« Reply #3 on: October 07, 2011 - 11:41:47 AM »
I would use the Felpro 1215 intake pan with the 4 side gaskets included , at least use the two gaskets between the valley pan & heads , this should solve the problem . I wonder if the intakes was planed off angle , I have run into a few like this .

Challenger - You`ll wish You Hadn`t

Offline Husker Cuda

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Re: Intake selection
« Reply #4 on: October 08, 2011 - 03:33:18 PM »
Thanks for the advice Chryco, I did check the intake and the angle was fine.  the guy that installed the intake messed up the install.  I decided to put a single 4 barrel on it, won't look as cool but it should perform better.  Any suggestions on carbs?  I have a 512 with 440 source stealths and a Voodoo 530 lift cam.  I ordered the single plane Mopar P4529725 intake.  I'm thinking Quick fuel 850 or 950 or Holley 4150 Street HP.

Mike
1974 'Cuda 512 stroker 650HP Indy heads, Hemi 4 speed, pistol grip - restored to new.
1970 GTX 440/727 Y4 Gold w/ black interior
1969 Camaro SS 396 4-speed X22
1970 Chevelle SS 396 - 375HP M22 4 speed

Offline Chryco Psycho

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Re: Intake selection
« Reply #5 on: October 08, 2011 - 03:38:20 PM »
Quick Fuel & Proform are the same company , on a 512 " I would use a 950  , annular is preferable , I typically use the non choke race series carbs as these cars are never driven in the cold anymore . I still recommend using the 1215 intake pan to close off the heat crossover
« Last Edit: October 08, 2011 - 03:40:01 PM by Chryco Psycho »

Challenger - You`ll wish You Hadn`t

Offline Husker Cuda

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Re: Intake selection
« Reply #6 on: October 08, 2011 - 03:48:03 PM »
What do you do with the brake booster, pvc valve & vacuum advance on a race carb?  If I understand it correctly the race carbs don't have any vacuum ports.  As far as the heat crossover, the stealth heads do not have the openings for exhaust so can't I just use the hughes 2 piece valley cover and standard intake gaskets?

thanks for your help Chryco!   :2thumbs:
1974 'Cuda 512 stroker 650HP Indy heads, Hemi 4 speed, pistol grip - restored to new.
1970 GTX 440/727 Y4 Gold w/ black interior
1969 Camaro SS 396 4-speed X22
1970 Chevelle SS 396 - 375HP M22 4 speed

Offline Chryco Psycho

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Re: Intake selection
« Reply #7 on: October 08, 2011 - 03:52:09 PM »
yes the valley pan & gaskets will work great .
 The race carbs have ports , the brakes hook to the intake , PCV to the carb & I generally leave off the dist vacuum advance but there is a ported vacuum nipple in the carb base

Challenger - You`ll wish You Hadn`t

Offline Husker Cuda

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Re: Intake selection
« Reply #8 on: October 08, 2011 - 04:32:16 PM »
Great, that should work great then.  Thanks again Chryco!
1974 'Cuda 512 stroker 650HP Indy heads, Hemi 4 speed, pistol grip - restored to new.
1970 GTX 440/727 Y4 Gold w/ black interior
1969 Camaro SS 396 4-speed X22
1970 Chevelle SS 396 - 375HP M22 4 speed