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How Fast with Indy EZ heads?

Posted By: Dragula

How Fast with Indy EZ heads? - 08/14/11 05:34 AM

Just curious how fast you guys are going with them. I am running a set on my engine builders Duster, and so far the pump gas motor has pushed it to 10.40's and almost into the 10.30's, just curious how fast you can go. These are unported and so far, not being a wedge guy, I am impressed on how hard the car leaves. It carried the front wheels this week +30' at about 10" off the ground.....
Posted By: sixpackgut

Re: How Fast with Indy EZ heads? - 08/14/11 07:19 AM

6.22 at 101 in 1/8 full exhaust, pump gas at 3500+
Posted By: rva

Re: How Fast with Indy EZ heads? - 08/14/11 11:19 AM

9.99 at 134 mph cnc ported
Posted By: mosweethemi

Re: How Fast with Indy EZ heads? - 08/14/11 11:55 AM

I,AM WORKING ON A 1973 PRO STREET DUSTER WITH A 440 O30 SIX PISTONS STEEL CRANK . A 590 CAM OR A 625 ROLLER. WHAT INTAKE IS THE BEST FOR THE EZ-1 HEADS A MAX WEDGE OR US A SINGLE FOUR?
Posted By: Dodgeguy101

Re: How Fast with Indy EZ heads? - 08/14/11 12:45 PM

440-2 indy- second thought with those pistons, lower RPM, dual plane single from indy, not sure of the numbers. I'm sure there are other good dual planes to use.
Posted By: mosweethemi

Re: How Fast with Indy EZ heads? - 08/14/11 01:04 PM

Hey the piston or speed pro L2355 030 , read end 456 , tire or quick time 18/5 -31 two 625 on the max wedge intake should work you think with eather cam 590 or 625 roller .I have the max wedge intake and would have to buy the Indy one. Trying to save me some money .Thats all
Posted By: Dragula

Re: How Fast with Indy EZ heads? - 08/14/11 03:57 PM

Quote:

6.22 at 101 in 1/8 full exhaust, pump gas at 3500+



Wow 6.22 in the 1/8th....But mph is low at only 101?

We ran 6.61 last week at over 102mph. I have to look and see, but I am pretty sure we had one time slip at 103mph, but our gearing is for 1/4 racing. I am impressed so far, and I am sure 6.50's are just a couple hundred rpm higher on the launch, but I leave nice and easy on it while we dial in the 4-link. I had to actually abort one run as we got the shock damping too tight, but we made some nice progress on the next couple of passes. So far the best 60ft has been a 1.465s...
Posted By: moparniac

Re: How Fast with Indy EZ heads? - 08/14/11 04:01 PM

I went 6.80 @ 101 in the heat in my chally at 3850lbs on 93 pump gas only time out with combo.

they were the CNC EZ's with a 308 port volume done by jeff at MCH on here!
Posted By: sixpackgut

Re: How Fast with Indy EZ heads? - 08/14/11 04:02 PM

Quote:

Quote:

6.22 at 101 in 1/8 full exhaust, pump gas at 3500+



Wow 6.22 in the 1/8th....But mph is low at only 101?

We ran 6.61 last week at over 102mph. I have to look and see, but I am pretty sure we had one time slip at 103mph, but our gearing is for 1/4 racing. I am impressed so far, and I am sure 6.50's are just a couple hundred rpm higher on the launch, but I leave nice and easy on it while we dial in the 4-link. I had to actually abort one run as we got the shock damping too tight, but we made some nice progress on the next couple of passes. So far the best 60ft has been a 1.465s...



111 Sorry. that was in my Challenger. the engine is now in the cuda below. gen 3 hemi goin in the challenger. my 60fts were right around 1.35
Posted By: dannysbee

Re: How Fast with Indy EZ heads? - 08/14/11 05:01 PM

Quote:

I,AM WORKING ON A 1973 PRO STREET DUSTER WITH A 440 O30 SIX PISTONS STEEL CRANK . A 590 CAM OR A 625 ROLLER. WHAT INTAKE IS THE BEST FOR THE EZ-1 HEADS A MAX WEDGE OR US A SINGLE FOUR?



Are you talking about a factory max wedge intake or one of the indy intakes? The factory maxi intakes are 70+ HP down on a good single plane.
Posted By: savoyracer

Re: How Fast with Indy EZ heads? - 08/15/11 03:58 AM

New motor this weekend, 440 block, 440 Source 523" stroker, With the INDY EZ heads...time trials today #1 6.200 #2 6.206 #3 6.198 this is 1/8th mile, with a 3360 lb car with driver in it. The DA was at 1500 plus or minus all day
Posted By: AndyF

Re: How Fast with Indy EZ heads? - 08/15/11 04:36 AM

Just depends on how well your car hooks and how much it weighs. My current motor is making about 850 hp with EZ heads so that is enough power to run 8's in a well sorted out door slammer. In a rail it would go even faster.
Posted By: afxcoronet

Re: How Fast with Indy EZ heads? - 08/15/11 04:59 AM

Gone 9.40s in my 3200lb coronet w/ 496" RB, MW EZs done by porter and Fliying toilet...
Posted By: mosweethemi

Re: How Fast with Indy EZ heads? - 08/15/11 12:37 PM

Why would the max wedge be down on HP ?over a single four?stock 426 max wedge was at 415 or 426 HP This is a good 440 with good pistons and good cam 590-625 roller .The EZ-1 heads would not keep the HP around 425 ?or more ?
Posted By: tboomer

Re: How Fast with Indy EZ heads? - 08/15/11 02:18 PM

Good thread here.. I will be watching this as I want new heads later this year..
Posted By: Dodgeguy101

Re: How Fast with Indy EZ heads? - 08/15/11 02:21 PM

Quote:

Why would the max wedge be down on HP ?over a single four?stock 426 max wedge was at 415 or 426 HP This is a good 440 with good pistons and good cam 590-625 roller .The EZ-1 heads would not keep the HP around 425 ?or more ?



That manifold is a restriction, if nothing has been done to it. The newer single plane intakes will outflow them. I know they are great for the cool factor, but for performance they are down. Read AndyF's book, he did back to back dyno tests, down 80HP.
Posted By: dannysbee

Re: How Fast with Indy EZ heads? - 08/15/11 02:40 PM

It's not that the cross ram will not make any HP just not as much as a good single plane. Sell the cross ram to someone that needs it for a nostalgia super stock if its modified or to someone doing a restoration if is unmodified. The cross ram intake will bring enough to buy a good single plane and a new carburetor.
Posted By: forphorty

Re: How Fast with Indy EZ heads? - 08/16/11 01:11 AM

Quote:

Hey the piston or speed pro L2355 030 , read end 456 , tire or quick time 18/5 -31 two 625 on the max wedge intake should work you think with eather cam 590 or 625 roller .I have the max wedge intake and would have to buy the Indy one. Trying to save me some money .Thats all

I'm not a big fan of using six pack pistons in a engine with big heads and big cam. Too heavy.
Posted By: deaks

Re: How Fast with Indy EZ heads? - 08/16/11 11:53 AM

As i found out to my cost, my old 440, stock 6 pack rods, 6 pack pistons, ported iron heads, then later edelbrocks, Crane R280 Roller. Revved it to 7000 trying to get in the 10's, spun a bearing and a rod exited the sump.
New 440, smaller flat tappet cam, better recriprocating assembly, more comp, old heads int and carb, time in sig and i think there's maybe a 10.1 in the car, shift at 6200 trap at 6500.
Mick
Posted By: Jacob Pitt

Re: How Fast with Indy EZ heads? - 08/16/11 03:28 PM

5.95@114 at 3300lbs footbraking with a 499" on race gas. They are the EZ-1's cnc ported by Modern. The cam is to small for the motor but seems to work well. The car is at the chassis shop now getting a backhalf done to it then I can up the cam and switch to e-85.
Posted By: sixpackgut

Re: How Fast with Indy EZ heads? - 08/16/11 04:08 PM

Quote:

[Email]5.95@114[/Email] at 3300lbs footbraking with a 499" on race gas. They are the EZ-1's cnc ported by Modern. The cam is to small for the motor but seems to work well. The car is at the chassis shop now getting a backhalf done to it then I can up the cam and switch to e-85.



that car boogies. what gear in your car? are they the big EZ heads or stock rocker type?
Posted By: tboomer

Re: How Fast with Indy EZ heads? - 08/17/11 02:18 PM

Posted By: moparniac

Re: How Fast with Indy EZ heads? - 08/17/11 02:51 PM

Jeff takes a stock ez head and cncs them to 308 port volume an still uses stock rocker gear! The ez1 is the same as standard ez head just the ports start out max wedge size... Any more than that you go to the 325s which is the only ez head that takes offset rocker... I did have a baby cam in my chally at 248/254 @ 50 but it worked good...
Posted By: Jacob Pitt

Re: How Fast with Indy EZ heads? - 08/17/11 03:23 PM

Quote:

Quote:

[Email]5.95@114[/Email] at 3300lbs footbraking with a 499" on race gas. They are the EZ-1's cnc ported by Modern. The cam is to small for the motor but seems to work well. The car is at the chassis shop now getting a backhalf done to it then I can up the cam and switch to e-85.



that car boogies. what gear in your car? are they the big EZ heads or stock rocker type?



It has a 4.30 gear in it and the EZ heads run the standard location Harland Sharps. The cam is something like a .636 lift solid roller wide lobe seperation. I don't have the card in front of me but once I get more tire under the car I'll be looking for somemore power.
Posted By: tboomer

Re: How Fast with Indy EZ heads? - 08/17/11 03:28 PM

I would say that is pretty impressive!!
Posted By: sixpackgut

Re: How Fast with Indy EZ heads? - 08/17/11 03:40 PM

Quote:

I would say that is pretty impressive!!



Your HP computed from your vehicle MPH is 797.77 flywheel HP

Posted By: max_maniac

Re: How Fast with Indy EZ heads? - 08/17/11 04:14 PM

Quote:

It's not that the cross ram will not make any HP just not as much as a good single plane. Sell the cross ram to someone that needs it for a nostalgia super stock if its modified or to someone doing a restoration if is unmodified. The cross ram intake will bring enough to buy a good single plane and a new carburetor.




On my 64 car that weighed in @ 3150 lbs the EZ heads with MW port and an oe cross ram on a 493 ci I did get a best of 9.98 but most times it ran 10.10 to 10.15 in the 1/4.

Russ
Posted By: JAKE68

Re: How Fast with Indy EZ heads? - 08/17/11 05:56 PM

440+.030 CNC by mch scott brown flat tappet cam indy cross ram 10.32@129mph @3620 with driver.
Posted By: JERICOGTX

Re: How Fast with Indy EZ heads? - 08/17/11 09:12 PM

499 low deck, Scott Brown flat tappet cam, AED 1000cfm/4150 carb, INDY intake, 2" Hooker Headers. Car weighs 3600lbs with driver, and has run 10.teens at 131mph.

Attached picture 6782755-5115.jpg
Posted By: dragram440

Re: How Fast with Indy EZ heads? - 08/17/11 10:05 PM

Quote:

499 low deck, Scott Brown flat tappet cam, AED 1000cfm/4150 carb, INDY intake, 2" Hooker Headers. Car weighs 3600lbs with driver, and has run 10.teens at 131mph.


Is this your car?
Posted By: JERICOGTX

Re: How Fast with Indy EZ heads? - 08/18/11 01:19 AM

Matt, no it's a friend of mine. Heads were done by Dwayne Porter. Made 715hp on the dyno. Pretty much the same combo as mine, but I have SR heads.
Posted By: tboomer

Re: How Fast with Indy EZ heads? - 08/18/11 01:00 PM

Jeff...What does Mike have for compression ratio?
Posted By: JERICOGTX

Re: How Fast with Indy EZ heads? - 08/18/11 02:36 PM

Just shy of 13:1.
Posted By: tboomer

Re: How Fast with Indy EZ heads? - 08/18/11 02:45 PM

Thanks,Jeff!! Makes me want to get new heads so this thing of mine can get some air thru it!! Dang!! I want to go a 10.10 before I am done!!
Posted By: JACK1440

Re: How Fast with Indy EZ heads? - 08/18/11 02:53 PM

so far 10.01 @ 136. car weighs 3400 with me in it. compuflow ported ez-1's on a 500".

Attached picture 6783820-cuda11242010_NEW(2).JPG
Posted By: tboomer

Re: How Fast with Indy EZ heads? - 08/18/11 02:54 PM

Looks great!!
Posted By: sixpackgut

Re: How Fast with Indy EZ heads? - 08/18/11 02:59 PM

jACK1440, would like to see more pics of that car
Posted By: Dragula

Re: How Fast with Indy EZ heads? - 08/18/11 02:59 PM

Some fast combos with these heads. Looks like with porting we would be in the 9's with our pump gas combo...What is the main difference between these and say the 440-1's, the port height?
Posted By: sixpackgut

Re: How Fast with Indy EZ heads? - 08/18/11 03:06 PM

Quote:

Some fast combos with these heads. Looks like with porting we would be in the 9's with our pump gas combo...What is the main difference between these and say the 440-1's, the port height?



use stock rockers except for the big EZ heads than their similar to -1s
Posted By: tboomer

Re: How Fast with Indy EZ heads? - 08/18/11 03:13 PM

I also presume that everyone using these heads are using the MW ports?
Posted By: JACK1440

Re: How Fast with Indy EZ heads? - 08/18/11 03:19 PM

here's another Sixpack.

Attached picture 6783854-cuda11-22-106.jpg
Posted By: Jacob Pitt

Re: How Fast with Indy EZ heads? - 08/18/11 03:21 PM

Quote:

I also presume that everyone using these heads are using the MW ports?



Mine are MW ports. Also another good thing about the heads is there are no external oil lines to mess with unless you go with the big ez's.
Posted By: JACK1440

Re: How Fast with Indy EZ heads? - 08/18/11 03:22 PM

one more

Attached picture 6783859-cuda6-09-4.jpg
Posted By: sixpackgut

Re: How Fast with Indy EZ heads? - 08/18/11 03:38 PM

Quote:

one more



i have one of those hood scoops and might put it on my car. might have to sit on a cowl though
Posted By: JERICOGTX

Re: How Fast with Indy EZ heads? - 08/18/11 05:18 PM

Quote:

What is the main difference between these and say the 440-1's, the port height?



EZ's use stock height exhaust ports, Stock rockers, and no external oiling.
Posted By: 67mprfan

Re: How Fast with Indy EZ heads? - 08/18/11 07:45 PM

Can't wait to see what my turd will run it's a stock stroke 440 w/ez-1 660 lift cam (to much duration)going in a 71 demon w/4;56 and 14x32 tires

Attached picture 6784301-63250004.jpg
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