Indy EZ, talks the talk, walks the walk.

Big Block A body Tech

  1. 67 prostreet gt

    67 prostreet gt Well-Known Member

    Messages:
    934
    Likes Received:
    55
    Joined:
    Aug 2, 2011
    Location:
    bellefonte, pa
    Local Time:
    7:59 PM
    I have a set of Indy ez heads on my 526 and they flowed very well for just being "de buggered" as my engine builder says and on the 526 with 10.1 to 1 compression 2 1/8 stahl fenderwells and a SV-1 carb she made 734 hp and 702 tq

    Posted via Topify using iPhone/iPad
     
  2. famous bob

    famous bob mopar misfit FABO Gold Member

    Messages:
    14,939
    Likes Received:
    5246
    Joined:
    Aug 14, 2011
    Location:
    okla
    Local Time:
    6:59 PM
    what do the heads flow? cam specs? carb size etc.? give us the low down----bob
     
  3. IQ52

    IQ52 Well-Known Member

    Messages:
    2,399
    Likes Received:
    1684
    Joined:
    Jul 30, 2011
    Location:
    Idaho
    Local Time:
    5:59 PM
    A 440 with EZ heads flowing 330 cfm @ .550".

    .040" over 440 for 446 ci. Comp Cams XE285HL 241/247 @ .050, .545/.545 @ 1.5 using solid lifters and 1.6 rockers, 10.4:1, 500 lb-ft from 3500-6000 rpm, 548 tq peak, 507 HP @ 4900 rpm, 542 HP @ 5200 rpm, 595 HP @ 6500 rpm. Indy single plane, 1140 cfm Pro Systems Dominator.

    Same engine with a Racer Brown roller cam from 1968. 500+ lb-ft from 5000 rpm to 6800 rpm, 502 HP @ 5000 rpm to 658 HP @ 6700 rpm.

    I guess those heads work okay..........
     
  4. airwoofer

    airwoofer Drivetrain limit explorer

    Messages:
    2,210
    Likes Received:
    36
    Joined:
    Jan 4, 2011
    Location:
    Huntsville, AL
    Local Time:
    6:59 PM
    Hey Jim, With those 440-1 that you worked for me on a 4.25 stroke 540, what cam would you suggest for the street (hot) on pump 93?
     
  5. IQ52

    IQ52 Well-Known Member

    Messages:
    2,399
    Likes Received:
    1684
    Joined:
    Jul 30, 2011
    Location:
    Idaho
    Local Time:
    5:59 PM
    Remind me what your static compression ratio is.........
     
  6. airwoofer

    airwoofer Drivetrain limit explorer

    Messages:
    2,210
    Likes Received:
    36
    Joined:
    Jan 4, 2011
    Location:
    Huntsville, AL
    Local Time:
    6:59 PM
    On the next go around it will be less with different (dished) pistons to be pump swill (we have 93 here) compatible. Want as much cam as the heads will allow to be run on the street on swill.

    This will probably be the end state motor for the KOS Demon. It is going in right now with the 13.9 build, but that C-16 $$$$$.
     
  7. EchoSixMike

    EchoSixMike Well-Known Member

    Messages:
    267
    Likes Received:
    85
    Joined:
    Nov 20, 2013
    Location:
    Chicago
    Local Time:
    6:59 PM
    E-85 is cheap and will work at 14:1. S/F....Ken M
     
  8. IQ52

    IQ52 Well-Known Member

    Messages:
    2,399
    Likes Received:
    1684
    Joined:
    Jul 30, 2011
    Location:
    Idaho
    Local Time:
    5:59 PM
    Well your heads can use a cam as big as 278/280 and .700/.700 which I have personally run on 91 octane and 11.5:1. Can't say how long the lifters will last with those spring pressures but it will need the $800-$1000 ones.

    If you want to stay around 400-440# over the nose you can run a lesser expensive lifter ($450-600) for a long time and a roller cam 250/250, .600/.600.......but your heads are better than that.

    Compromise, compromise, compromise.
     
  9. airwoofer

    airwoofer Drivetrain limit explorer

    Messages:
    2,210
    Likes Received:
    36
    Joined:
    Jan 4, 2011
    Location:
    Huntsville, AL
    Local Time:
    6:59 PM
    When I get done with all this race gas fun I don't want to have to mess with the valves all the time so for sure the cam will be milder. We'll see how long MRL lifters work with the Indy R2 cam but it won't be in there that long. That motor will have a 7200 RPM pill. And it will see street duty around my back roads (5 miles to the track).

    That KOS 499 is out and with .900 lift I am in no hurry to put it back in. Rockers so close to the gasket rails I couldn't get a spring checker in the gap. Besides, those headers and the 4 1/2" exhaust pipes!

    It's funny but at our local track 7.0 index costs the same to enter and pays the same as 5.30, X275, or 315 drag radial which is a 4.20ish class - which costs more in terms of maintenance and parts to run? You can hang out between rounds of 7.0 and watch the race. Hard to win as it is very competitive.

    http://www.huntsvilledragway.com/tony_r_1.jpg
     
  10. Mopar Miller

    Mopar Miller Active Member

    Messages:
    35
    Likes Received:
    3
    Joined:
    Jul 24, 2014
    Location:
    Utah
    Local Time:
    6:59 PM
    The B1 heads are by far the best mopar wedge heads made. And you don't have to deal with the ass holes at INDY CYLINDER SERVICE. 800 + LIFT 800 PLUS hP AND THEY ARE NOT OPENED UP YET!!!
     
  11. IQ52

    IQ52 Well-Known Member

    Messages:
    2,399
    Likes Received:
    1684
    Joined:
    Jul 30, 2011
    Location:
    Idaho
    Local Time:
    5:59 PM
    Hmm. I would be interested in any facts instead of innuendo. Obviously you have a grudge with Indy, but lets just skip that and hear your personal experiences with the B1 heads.

    Go.........
     
  12. rumblefish360

    rumblefish360 So close, yet so far away

    Messages:
    36,953
    Likes Received:
    8784
    Joined:
    Jun 21, 2005
    Location:
    New York, on a Island
    Local Time:
    7:59 PM
    Yes indeed. I have had a few crap experiences with some companies. But I'll stinuse the facts of the product.

    Enquiring minds wanna know.
     
  13. AndyF

    AndyF Well-Known Member

    Messages:
    1,502
    Likes Received:
    1452
    Joined:
    Feb 23, 2009
    Location:
    Oregon
    Local Time:
    4:59 PM
    I've been running a set of CNC ported EZ heads on my 514 dyno mule for a few years now. On a good day it makes a little over 900 hp.

    Indy EZ 88-1.jpg
     
  14. AndyF

    AndyF Well-Known Member

    Messages:
    1,502
    Likes Received:
    1452
    Joined:
    Feb 23, 2009
    Location:
    Oregon
    Local Time:
    4:59 PM
    My EZ heads have the MW porting, but they still use the standard offset intake valve. There is more power to be had in this combo, might be able to break the 1000 hp barrier if I spend enough time and money on it.

    Indy EZ 89-1.jpg
     
  15. IQ52

    IQ52 Well-Known Member

    Messages:
    2,399
    Likes Received:
    1684
    Joined:
    Jul 30, 2011
    Location:
    Idaho
    Local Time:
    5:59 PM
    I'm so interested in trying the EZ heads on the 500 with the Edelbrock Super Victor like you have there. With the Edelbrock Victor heads and the Indy 3X it made 928 HP. Maybe I should put the Victor heads back together and try back to back runs doing the swap.
     
  16. dusterdragracer

    dusterdragracer Drag Racer

    Messages:
    611
    Likes Received:
    43
    Joined:
    Mar 22, 2011
    Location:
    Potato Land
    Local Time:
    4:59 PM
    701 Dyno'd H.P with Indy 440 EZ-1. Ported by killians porting. Don't know what they flow at, I bought the car with heads on it.
    446 C.I.(440 30 over) 12:5 compression,660 Isky roller, Indy match ported intake 1050 dominator, on alky.2 1/8" headers.
    9:36@144 MPH 2880 lbs with a glide.
     
  17. AndyF

    AndyF Well-Known Member

    Messages:
    1,502
    Likes Received:
    1452
    Joined:
    Feb 23, 2009
    Location:
    Oregon
    Local Time:
    4:59 PM
    The Super Victor in the picture has been heavily modified by Wilson. It is fully ported and has runner extensions welded into the plenum. The modifications added about 20 hp on this engine. This intake makes more power than any of the Indy intakes that I've tested.
     
  18. daredevil

    daredevil Well-Known Member

    Messages:
    11,462
    Likes Received:
    146
    Joined:
    May 19, 2007
    Location:
    S/w Houston
    Local Time:
    6:59 PM
    I understand that head flow is measured in cfm.And that valve lift opens flow. But how is the cfm measured and what is the common water collum used.Is there some kind of air flow meter that a laptop reads? Maybe a walkthru the layman could understand.
     
  19. 346pack

    346pack Active Member

    Messages:
    34
    Likes Received:
    0
    Joined:
    Jan 1, 2009
    Local Time:
    6:59 PM
    So how do you think the trick flow 240 will stack up against the ez 1 I have a 512 that I am trying to figure out which head would be the best choice
     
  20. EchoSixMike

    EchoSixMike Well-Known Member

    Messages:
    267
    Likes Received:
    85
    Joined:
    Nov 20, 2013
    Location:
    Chicago
    Local Time:
    6:59 PM
    EZ's are properly a maxwedge port, so you're better off with that for 512 cubes, especially if you have them ported. Frankly, I wouldn't buy heads without budgeting for porting to some degree. These TFS heads might be the first, since they come CNC finished. I suppose we'll see what experienced engine builders say, as regards how much is left on the table OOTB vs having them ported further. S/F....Ken M
     
    • Disagree Disagree x 1
    • AndyF

      AndyF Well-Known Member

      Messages:
      1,502
      Likes Received:
      1452
      Joined:
      Feb 23, 2009
      Location:
      Oregon
      Local Time:
      4:59 PM
      One thing that I've found is that my EZ heads respond well to additional valve lift. My new cam has 0.890 lift on the intake and .818 lift on the exhaust side. I'll have it back on the dyno in a month or two and we'll see how it does. I also changed to a 4-7 firing order swap but that probably won't matter much. Just did it to try it.
       
    • rumblefish360

      rumblefish360 So close, yet so far away

      Messages:
      36,953
      Likes Received:
      8784
      Joined:
      Jun 21, 2005
      Location:
      New York, on a Island
      Local Time:
      7:59 PM
      What sis that crank run you?
       
    • charga

      charga Member

      Messages:
      6
      Likes Received:
      0
      Joined:
      Jun 16, 2015
      Location:
      Australia
      Local Time:
      8:59 AM
      Hi Andy is that engine the one formerly known as project 505 ? Do you have a build thread on it somewhere ? sounds like it makes great numbers. I am very interested in it as I have a 540ci engine with EZ-325 heads running 11.5:1 comp that made 725hp on pump gas but have now made a few changes hoping to go past 800hp
       
    • AndyF

      AndyF Well-Known Member

      Messages:
      1,502
      Likes Received:
      1452
      Joined:
      Feb 23, 2009
      Location:
      Oregon
      Local Time:
      4:59 PM
      I did use these same EZ heads on Project 505 but the block is different. Project 505 was a stock block which we eventually broke so I switched to a World block. The 514 motor has a 4.440 bore size and a 4.15 crank.

      You shouldn't have any trouble making more than 800 hp with EZ-325 heads on a 540 shortblock. Just need to give it some camshaft and let it eat. Of course, if it is a street engine then you need to stay on the small side with the cam.
       
    • hangn0ut

      hangn0ut Well-Known Member

      Messages:
      747
      Likes Received:
      120
      Joined:
      Dec 3, 2012
      Location:
      rialto.ca.
      Local Time:
      4:59 PM
      4/7 swap. That would be a sure fix for 5/7 ignition crossfire. Or is that not a problem anymore with plug wires available today? What are the findings guys? Don't mean to be rude but I just gotta ask. Thanks.
       
    1. This site uses cookies to help personalize content, tailor your experience and to keep you logged in if you register.
      By continuing to use this site, you are consenting to our use of cookies.