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Old 09-30-2013, 08:27 PM
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i need help guys info or flow# for dart iron eagle early style pn 10120020

Right now I have to get a new set of heads for my sbc 327 30 over flat tops with lunati streetmaster 285 durat and 507 lift. To make a long story short first engine builder sold me a pos engine and the heads was a blem pare and the valve angles are off 2 and 3 degrees off on one head. I found as set of dart iron eagle early design pn10120020 not platinum. Specs are 180cc runner 68cc cbc 2.055/ 1.6 valves heads are bare for $475 and can use all valve springs and exhaust valves and hardware except intake valve 2.02. Or should I get the promaxx 2151 iron vortec head 185 runner 64cc cbc 2.02/1.6 valves $820 after tax summitracing as I already have a wieand vortec intake. Even with new intake the dart setup would be cheaper.

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Old 09-30-2013, 09:24 PM
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When I flow tested a new pair of the old Iron Eagle 180cc port 72cc chamber head in stock form, for a friend,
they were less than spectacular.. They flowed 209cfm @28".
After a good bit of porting I got them up to 238cfm.
It was the same amount of port work required on the 305HO heads I do.
I get 234 to 242cfm from them 305HO heads using just a 1.94" valve. (178cc finished port)
At half the cost.

There are much better cast iron heads to buy. The casting quality is good thou. Nice thick Dart castings for sure.
The valve job is sunk way too deep in the chamber on these Iron Eagle heads.

But a new properly done 2.05" valve job that won;t be so sunk in the chamber propbabily will flow better.
(with some porting too.)
By the ta=ime you are done all the chamber re work and new 2.05" valves etc you can get AFR's for the money you will have wrapped up in them. (unless you own your own machine shop and can rework them for free.)
I think the chamber on the 64cc version and the 72cc version are the same chamber. I think they just sink the hell out of the valve job on the 72cc chamber version. To get the larger 72cc.
Thats what It looks like to me. Reports I have seen show the 64cc chamber version flows better.
These are not the same as the Platinum series Darts at all.

Yes they have a cheap price. Thats why my friend bought them. (Against my advice)
He was sick the day we flowed them with my latest freshly done 305 heads, on that day. I had half the money in them .

No thumbs up for the Dart Iron Eagle 180cc (72cc chamber) head from me.

The 200cc 215cc and 230cc Darts work good. If you want a small port head the Dart 165cc Iron Eagle SS head is a better start point IMHO. You can port that head and get a pretty good cast Iron head in the end.

Thi pair the IE 180's is going on a blower motor sos the chamber is going to end up being generously reworked to 80cc, so....

Last edited by F-BIRD'88; 09-30-2013 at 09:49 PM.
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Old 09-30-2013, 09:52 PM
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A 68cc chamber on a flat top piston 327 will only result in modest compression ratio anyway.
The cr will be way too low.

You want 58cc to 60cc chambers on that 327
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Old 09-30-2013, 10:24 PM
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so what about the promaxx 2151 heads

So what about the promaxx heads I mentioned above and have them shaved down to about 60cc cbc.
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Old 09-30-2013, 10:39 PM
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A much better deal.
Summit cylinder head # SUM-162111 or SUM-162112
This is a rockin cylinder head.

You get what you pay for. Cheap is cheap.
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Old 10-01-2013, 12:30 AM
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Thanks f-bird88 I have actually been looking at these exact heads I hear their really brodix ik200
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Old 10-01-2013, 12:32 AM
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Quote:
Originally Posted by pacman350 View Post
Thanks f-bird88 I have actually been looking at these exact heads I hear their really brodix ik200
You don't think these 200cc runner will be to big on a street sbc 331
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Old 10-01-2013, 12:56 AM
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no they are not too big. Rev it up.
Yes they are the IK200 head. I looked at them in Ohio one day. They are a very good head.
The real deal. Defiantly on my best buy list.

I like the Profiler heads too.

Last edited by F-BIRD'88; 10-01-2013 at 01:04 AM.
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Old 10-01-2013, 01:11 AM
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You could put a 72-75cc 200cc head on that motor and supercharged it. (Weiand 142 or 177 or even 6-71)
You would really like that. The competition wouldn't.
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Old 10-01-2013, 01:18 AM
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F-bird88 you got some great ideas and a supercharger would be nice but its just little ole daily driver for now anyway but thanks again.
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Old 10-01-2013, 07:26 AM
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One of the local engine builders had a set of the 72cc SHP heads in for a customer; I think they're an older iron eagle design, but done in aluminum. Anyway; they were pretty useless, unless you really wanted a Dart aluminum head from America. He swore them off for his customers and was using the IK180s and IK200s for his street customers. Fairly recently, I was in his shop (he welds aluminum housings for us) and he had a set of the SHP 64cc approx heads on his counter for sale. So I asked the obvious question and his response was that the 64cc design flows MUCH better than the 72; and that the head probably was designed around a 58-64cc volume. The 72cc volume had the valves sunk deeper to add volume and this really killed the performance of the head.

Is this fairly common for Dart to make the 72cc heads "Also rans"?

To the OP: If you are more street rodder/cruiser than bareknuckled street brawler and your car isn't really built to wind the motor up more (ie stock torque converter, 3.55s or 3.31 rear axle, mild cam) I would opt for the SMALLER IK180s. You'll get better performance for that type of car than you will with the 200s
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Old 10-06-2013, 04:14 AM
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what about these rhs 12952

Ok I looked at one last pair of heads that in my price range rhs12952 180cc 64cc cbc they are the bair heads but I have all new hardware for those junk heads I have I only need a few 2.02 intake valves where they where kissing the pistons on driver side. Do anybody have any flow numbers for these rhs 12952 heads.
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Old 10-06-2013, 05:14 AM
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Quote:
Originally Posted by pacman350 View Post
Ok I looked at one last pair of heads that in my price range rhs12952 180cc 64cc cbc they are the bair heads but I have all new hardware for those junk heads I have I only need a few 2.02 intake valves where they where kissing the pistons on driver side. Do anybody have any flow numbers for these rhs 12952 heads.
I'm sorry I put the wrong part number for the rhs head its RHS-12052 let me know what you guy think about these and as I said earlier I have all the hardware avalible for them.
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Old 10-12-2013, 06:53 PM
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Thanks for your help I went with the promaxx 2151 iron vortec
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