Mopar intake

Discussion in 'Race 400/430/455' started by Michael Evans, Dec 31, 2011.

  1. Michael Evans

    Michael Evans a new project

    I drilled and taped all four corners to get rid of the hot spots in the back of the heads.

    If you have a way to measure the tempertures, you will see a big difference.

    Running four water lines is some work.
     
  2. Cellguy

    Cellguy 86 Somerset Screamer

    Mike,
    I bought my car with this set up on it. I never ran the car with it mounted. I heard it ran good.. I took it off last year and ran a port matched SP2. I just wanted a less stressful first time out with the car.. When my new engine is done I will entertain my brain and mount this set up back on. Big block mopar tunnel ram with 950's and buick plates. The past owner really ported this set up to work.. Keep on being different..
     

    Attached Files:

  3. 462 Chevelle

    462 Chevelle 462 chevelle

    I've seen this done on circle track Chebbys. what kind of theoretical gain is there?
     
  4. Thumper (aka greatscat)

    Thumper (aka greatscat) Well-Known Member

    Info from Gessler shows after porting my KB wildcat was flow balanced to 373 cfm at 28"
    gary
     
  5. Michael Evans

    Michael Evans a new project

    After measuring the heat differance there was with the B4B, it has to be better removing the "hot spots" in the rear of the heads/intake by not having any water flow.

    Will take more measurements when I get it all tegether and running.
     
  6. Rich3539

    Rich3539 Well-Known Member

    [​IMG]

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    Hers a couple shots of my junk.
     
  7. TORQUED455

    TORQUED455 Well-Known Member

    Rich,

    Any idea of what the B1 flows? Dale does a good job with those Dommies!
     
  8. Rich3539

    Rich3539 Well-Known Member

    Sorry Bob ...never had it flowed.But it did make 864hp with a flat tappet. Thanks to Stan& Johnny"Z"
    :3gears:
     
  9. gymracer01

    gymracer01 Well-Known Member

    Because I run Nostalgia Super Stock and we are required to run 2 x 4s by some organizations, I experimented with adaptors and an Edelbrock STR 15 crossram intake. They require port work to even make them work very well on a Mopar. We did all the suggested porting by the Mopar experts and tried it on a 464 on the dyno. It did not show much over the old Offy 2 x 4 Buick intake that I have run for years. I would like to try one of the new Indy 2 x 4 intakes for the low deck engine. I think that would be my best ticket, especially when I can step the car up to run FX (9.75 or faster) then I can run Holley carburetors instead of the AFBs I must run now. Personally I think fighting intakes right now is just a matter of moving around HP and Torque curves. I think to see big gains, we need much better heads and then go for an improved intake. When I was running a single carburetor, I ran a K-B Cool Runner that had been well ported and it seemed to be the best of the intakes I tried and if I was only looking to run a single carburetor, I would stick with it and a 4500 series carb.
     
  10. Dubuick

    Dubuick CMDR Racer

    I'll have to look for the card but i remeber my SPX i have had greg ported and balanced it was around 380ish also...but the intake and port work wasn't cheap...but worth it!
     
  11. stage2man

    stage2man Well-Known Member

    I've been running a 'B' mopar intake for a while now, basically because we don't have many options and I wanted the tunnel ram look.

    The TA stage2 port size is between the standard mopar and Max wedge sizes. The max wedge is slightly wider and .010 taller. The B1 is alot bigger port by about 30% or more.

    When I port matched my tunnel ram every other port lined up nicely with the others needing 1/8" or so metal removed on the intake side. As luck would have it the standard mopar port is just small enough to make this work. I still needed to do some epoxy work but that had more to do with over zellist porting techniques :Brow:. The thing I didn't like was the port angle mismatch was fairly marked. To help with this transistion I raised the intakes port and radiused the adaptor plate along the port roof. This made my tunnel ram very thin along the top for about 3 inches but it made a very nice shot at the valve since most of the air likes to flow along the roof. I didn't worry about filling the port floor area with epoxy to match the blend radius since very little air follows the port floor. If I remember right the port entry area is 3.08 inches. I forget the velocity results now but they are nowhere near the limits for my RPM range. Port volume rpm calculations show'd 4700 peak torque while the runner length calculations predicted 4400. A great match to my 308 cam.

    I've got REV plates under the carbs now but pretty much still the same. 3-4 years later and still love it!
     

    Attached Files:

  12. TORQUED455

    TORQUED455 Well-Known Member

    Nice!
     
  13. Michael Evans

    Michael Evans a new project

    David,

    What did you do about cooling (water lines)?
     
  14. stage2man

    stage2man Well-Known Member

    Weiand remote thermo housing, PST fittings at the head so I could run 5/8" hose. The hose lays under the tunnel ram looping around to the opposite side with 90deg fittings at the remote housing.
     

    Attached Files:

  15. nickbuickgs

    nickbuickgs nickbuickgs

    Micheal ,

    Is the valley-pan plate somethin you made ? I could use one for the SPX I cut apart .

    Nick
     
  16. RG67BEAST

    RG67BEAST Platinum Level Contributor

    Nick I have the low deck Mopar adapter plate setup as well and it came with a flat piece of 1/4" aluminum. The two side adapters are notched for it.
    Ray
     
  17. gmcgruther

    gmcgruther Well-Known Member

    I would call Marcella Manifolds (248)-259-6696 and ask that cat about what you guy's are doing, he is a master when it comes to modifying intakes and getting the most out of them. He is full of knowledge that we all could use. Just give him a hollar.
     
  18. Michael Evans

    Michael Evans a new project

  19. stage2man

    stage2man Well-Known Member

    Most of the coolant should flow thru the head rear to front. It's generally recommended that the front line pull most of the return coolant. There are some old post on the subject.
     

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