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Indy 440 EZ Heads #927869
02/13/11 02:56 PM
02/13/11 02:56 PM
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Kudakidd Offline OP
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Anyone using them? Pros/ cons? They'd be going on my 440 in the Duster (9.00:1 comp., .509" cam, Demon 750, Eddy Performer RPM, Headers,3.55 Sure grip, 4-speed)

Re: Indy 440 EZ Heads [Re: Kudakidd] #927870
02/13/11 03:03 PM
02/13/11 03:03 PM
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Bend,OR USA
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Quote:

Anyone using them? Pros/ cons? They'd be going on my 440 in the Duster (9.00:1 comp., .509" cam, Demon 750, Eddy Performer RPM, Headers,3.55 Sure grip, 4-speed)


which material heads, aluminum or cast iron? If aluminum I would cut them to help incresase the compression ratio, if there the 440-1C I would leave the compression where it is To answer your question on use, I have a CNC ported set as wel as several other sets of iron and aluminum and the 440-1 CNC set has made the most power on any of my N/A engines so far IHTHs


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
chico [Re: Cab_Burge] #927871
02/13/11 03:26 PM
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Quote:

Quote:

Anyone using them? Pros/ cons? They'd be going on my 440 in the Duster (9.00:1 comp., .509" cam, Demon 750, Eddy Performer RPM, Headers,3.55 Sure grip, 4-speed)


which material heads, aluminum or cast iron? If aluminum I would cut them to help incresase the compression ratio, if there the 440-1C I would leave the compression where it is To answer your question on use, I have a CNC ported set as wel as several other sets of iron and aluminum and the 440-1 CNC set has made the most power on any of my N/A engines so far IHTHs




Thanks Cab. I'm interested in the aluminum versions. I know it's not the smartest move, but I'm also hoping to run them right out of the box.

Re: chico [Re: Kudakidd] #927872
02/13/11 05:01 PM
02/13/11 05:01 PM
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Stanton Offline
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If you want to run them right out of the box then I suggest you buy them from someone like Dwayne Porter, Muscle Motors or Modern Cylinder Head (just to name a few). As they come from Indy they apparently do not have the best valve job. Price likely won't vary by much and you'll get better quality workmanship. You'll also get more options as far as springs, retainers, locks, etc.. It's worth checking into for sure.

I bought the EZ-1 kit direct from Indy and here are my issues:

Springs are good to .600 but not a .600 roller and need to be changed.
Stamped retainers and locks - likley won't handle the roller either and need to be changed.
Umbrella seals. ???
Valve job. ???
Pushrod ball and cup sizes don't fit my rockers or lifters. Need to be changed.

So by the time I'm done I'll end up spending an additional $500 on top of the Indy kit price. I likely could have saved half that by going to one of the other guys and getting the right suff in the first place.

Re: chico [Re: Stanton] #927873
02/13/11 06:28 PM
02/13/11 06:28 PM
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Windsor ,Ca.
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Keith Richards Offline
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I bought a new set from Dwayne (Porter Racing Heads) and he did the Max Wedge port on them. He also set them up for a roller for my '68 RR and with 500" on pump gas and full street legal exhaust it has a best of 10.47 & 129. I could not be happier! He was great to work with as well.

http://s141.photobucket.com/albums/r70/racebeeper68/?action=view&current=Wednitedrags.mp4


6473889-keith.JPG (455 downloads)
Last edited by racebeeper68; 02/13/11 06:44 PM.
Re: Indy 440 EZ Heads [Re: Kudakidd] #927874
02/13/11 06:33 PM
02/13/11 06:33 PM
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Val-haul-ass... eventually
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BradH Offline
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Is that your "final" combination, or do you have plans for additional changes (e.g. more cubes), too?

Re: Indy 440 EZ Heads [Re: Kudakidd] #927875
02/13/11 07:05 PM
02/13/11 07:05 PM
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Oregon
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Quote:

Anyone using them? Pros/ cons? They'd be going on my 440 in the Duster (9.00:1 comp., .509" cam, Demon 750, Eddy Performer RPM, Headers,3.55 Sure grip, 4-speed)




Edelbrock heads would be a better match for the rest of your parts.

Re: Indy 440 EZ Heads [Re: AndyF] #927876
02/13/11 08:21 PM
02/13/11 08:21 PM
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Rittman Ohio
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Quote:

Quote:

Anyone using them? Pros/ cons? They'd be going on my 440 in the Duster (9.00:1 comp., .509" cam, Demon 750, Eddy Performer RPM, Headers,3.55 Sure grip, 4-speed)




Edelbrock heads would be a better match for the rest of your parts.



I have EZ's on my car and as said above they are not a "bolt-on" like the Eddy heads would be with your current combo. I got mine from Nick at Compu-Flow and he showed me the inconsistent valve margins and the spring pressures were not enough for small solid cam I was using.He touched up the valve job and done the assembly after I blended the bowls and matched the gaskets.
Get Andy's book and heed his advice
Gus


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: Indy 440 EZ Heads [Re: fourgearsavoy] #927877
02/13/11 09:35 PM
02/13/11 09:35 PM
Joined: Aug 2008
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Texas, USA
ChrgrCuda Offline
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I also bought my EZ's through Nick at Compu-flow, already set up for a solid roller by him. I just bolted them on after he did his magic. I hope they run as good as they look.


68 Cuda Notchback [Email]10.86@120[/Email] 69 Charger R/T 440/505 2009 Challenger SRT8
Re: Indy 440 EZ Heads [Re: ChrgrCuda] #927878
02/13/11 11:01 PM
02/13/11 11:01 PM
Joined: Dec 2004
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Rittman Ohio
fourgearsavoy Offline
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You won't be disappointed at all My little engine is an overachiever and I have no doubt it's in the heads.
Gus


64 Plymouth Savoy
493 Indy EZ's by Nick at Compu-Flow
5-Speed Richmond faceplate Liberty box
Dana 60
Re: Indy 440 EZ Heads [Re: fourgearsavoy] #927879
02/13/11 11:33 PM
02/13/11 11:33 PM
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My budget for the year is shot!! If there was money left,I would go with the max wedge port EZs...But since it was brought up,please use an Indy dealer...Several here on the board. And all of them are good guys!! You can't go wrong with Dwayne Porter,Jeff at Modern Cylinder, or Bob at Bob George Racing. Lots of others I forget but someone here will point you in the right direction!!


Need your rear end checked out? Contact Grizzly!!
Re: Indy 440 EZ Heads [Re: tboomer] #927880
02/14/11 01:31 AM
02/14/11 01:31 AM
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Balt. Md
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I just bought a set from Dwayne Porter for my pump gas 493 I am building. Great service and great work. He opened mine up to Max Wedge size and set it up for up to .650 lift. He is very nice to deal with and has very good prices. You wont regret dealing with him. Ron

Re: Indy 440 EZ Heads [Re: 383man] #927881
02/14/11 01:33 AM
02/14/11 01:33 AM
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Great,choice,Ron!!


Need your rear end checked out? Contact Grizzly!!
Re: Indy 440 EZ Heads [Re: tboomer] #927882
02/14/11 01:38 AM
02/14/11 01:38 AM
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Nevada
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I run E-Z's om my .030 over 440 and am very pleased with them. I would suggest upgrading to better spring retainers - I broke one at 6500 rpm, luckily no major damage. Mine even use the standard port window. I had mine milled to get 72cc chambers for 11 to 1 CR. I run a .600 lift flat tappet solid cam, 1050 dominator, edel. victor, race weight is 3650 - best of 10.58@125 at 2100 ft.

Re: Indy 440 EZ Heads [Re: theman440] #927883
02/14/11 03:41 AM
02/14/11 03:41 AM
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Arkansas
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Adrielp Offline
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I will let you know in 3 weeks or so. We just installed a set on our bracket car and the engine is going back in Friday if we get our parts. We may visit the engine dyno later next week as well, I will keep you posted on numbers whether we hit the track or the dyno. We were running 6.50's in the 1/8th with our iron headed engine so we should definitely improve that with the upgrades we've made.


Adriel Paradise
Substation Design Engineer III
Re: Indy 440 EZ Heads [Re: AndyF] #927884
02/14/11 11:24 AM
02/14/11 11:24 AM
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A gulag near you.
JohnRR Offline
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Quote:

Quote:

Anyone using them? Pros/ cons? They'd be going on my 440 in the Duster (9.00:1 comp., .509" cam, Demon 750, Eddy Performer RPM, Headers,3.55 Sure grip, 4-speed)




Edelbrock heads would be a better match for the rest of your parts.




, Mark you really should dump the big dollar purchase into the poorly executed shortblock that came in that car. I talked to Dan about your goal after the last time we talked and he said all you need is a cam change on your current setup to get you there.

I'd change the cam and get a little port work done to the 915's ...

Re: Indy 440 EZ Heads [Re: JohnRR] #927885
02/14/11 01:11 PM
02/14/11 01:11 PM
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robin hood country
deaks Offline
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If it were me, i would buy a set of ported rpm's, mill .060 off them to get the compression up and keep the motor under 6500.
Sport 440's car goes mid 10's with your set up and Eric used to as well.
Just my
Mick


69 Dart GTS 440 mopar .590 cam, Edelbrock heads, 3200#
best et 6.45, 106.78, 10.14, 132.88 mph, 1.47 60ft
best 60ft 1.36
Re: Indy 440 EZ Heads [Re: deaks] #927886
02/14/11 01:42 PM
02/14/11 01:42 PM
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Liverpool, NY
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SILVER67 Offline
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Nick at Compu-Flo is a good source! He will only sell you what you need. Very honest guy. He always takes the time to discuss any goals you may have!

Michael

Re: Indy 440 EZ Heads [Re: Kudakidd] #927887
02/14/11 10:20 PM
02/14/11 10:20 PM
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So. Burlington, Vt.
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i agree with the others that said the RPM heads would be a better choice for the current combo.
i dont necessarily feel they would offer better performance than the EZ, but should be equal on that combo, at a lesser cost.
however, if future upgrades are part of your plans, especially in terms of displacement, then it makes more sense to just get the better heads now.

OOTB std port EZ's flow around 295cfm, a nice valve job with back cut valves and the bowls blended and chambers ported around 315.
open to MW size and your in the 340cfm range.

6476216-IMG_1724.JPG (1473 downloads)

68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Indy 440 EZ Heads [Re: JohnRR] #927888
02/15/11 11:52 AM
02/15/11 11:52 AM
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Kudakidd Offline OP
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Quote:



, Mark you really should dump the big dollar purchase into the poorly executed shortblock that came in that car. I talked to Dan about your goal after the last time we talked and he said all you need is a cam change on your current setup to get you there.

I'd change the cam and get a little port work done to the 915's ...




Thanks John and everyone else. John knows the car personally, and maybe the 'magic bullet' is not a head change, but a cam change. But what? I was hoping the EZ's with the small chambers and better flow would be the ticket.

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