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Old 08-23-2014, 03:38 PM
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Enginequest 200cc iron SBC heads

Does anyone have feed back on EQ CC200BA iron cylinder heads? I found a pretty good deal on new bare castings. Plans are to use them on a 383 SBC in a street driven truck.

How do they compare with say a 200cc Dart iron platinum or Sportsman II in 200cc?

Thanks

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Old 08-23-2014, 04:20 PM
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Quote:
Originally Posted by GMC boogie View Post
Does anyone have feed back on EQ CC200BA iron cylinder heads? I found a pretty good deal on new bare castings. Plans are to use them on a 383 SBC in a street driven truck.
How do they compare with say a 200cc Dart iron platinum or Sportsman II in 200cc? Thanks
OK, lets begin by comparing them to one of the best-flowing heads in the aftermarket, AirFlow Research. Here to begin is their offering in a 180cc intake runner volume....The most realistic way to compare heads is at 0.400" valve lift.

Airflow Research 180
0.200" 138 110
0.300 198 158
0.400 240 190
0.500 260 207

Airflow Research 195....these heads have been shown to make 500hp and 500 ft/lbs of torque on a 383 very easily....9.5:1 SCR, 1 3/4" headers, Edelbrock 7101 manifold, Holley 0-4779 750 CFM, CompCams hydraulic roller 12-433-8, MSD distributor @36 degrees, 93 octane pump gas.
0.200" 146 119
0.300 201 166
0.400 274 197
0.500 275 213
0.550 280 218

Engine Quest 200
0.200" 137 113
0.300 186 147
0.400 225 170
0.500 252 182
0.600 265 188

Dart Iron Eagle Platinum 200
0.200" 130 109
0.300 194 158
0.400 242 198
0.500 274 208
0.600 283 214

World Sportsman II 200
0.200" 133 97
0.300 182 128
0.400 228 145
0.500 257 160
0.600 264 183

Pro-Filer Aluminum 195
0.200" 145 101
0.300 205 144
0.400 255 175
0.500 278 194
0.600 281 205

Last edited by techinspector1; 08-23-2014 at 04:37 PM.
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Old 08-23-2014, 04:54 PM
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Bottom of the bunch, a little better than the Sportsman.
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Old 08-23-2014, 06:26 PM
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It's a good solid casting, nice and thick, and pretty much the same as a Sportsman II or pre-Platinum Eagle.

It is the same casting as the Protopline/ProActon Iron Lightning 200, from before RHS bought out ProTopline.

It appears Engine Quest lost the 200cc and bigger lines to the ProTop-RHS buy-out, only RHS still sells the bigger castings, EQ only still offers/sells the Vortec Replacement and IMCA spec 170-180cc heads.

Too bad, the EQ 220's and 235's were a killer deal while the inventory held out.

The 200's are a good deal if you can get them cheap enough, especially if you can port them yourself or know someone who can reasonably cheap.

Competition Products still has a few of the 220's and 235's available, but supplies/chamber choices are limited.
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Old 08-23-2014, 06:49 PM
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I found these for $550 a pair plus $70 shipping. I may go ahead and get them but, I am kinda on the fence as to whether these may be too large for my application.
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Old 08-23-2014, 06:55 PM
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What's the application?
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Old 08-23-2014, 07:02 PM
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For my '85 C10 truck. I am piecing together a 383 sbc. It is a daily driver, no track use, has A/C, TH350, 2.73 gear, 28" tires. Cruise RPM is 2300 and I will never spin it past 5500.
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Old 08-24-2014, 02:27 AM
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Quote:
Originally Posted by GMC boogie View Post
For my '85 C10 truck. I am piecing together a 383 sbc. It is a daily driver, no track use, has A/C, TH350, 2.73 gear, 28" tires. Cruise RPM is 2300 and I will never spin it past 5500.
Yeah, they're a little bigger than you probably want...that 2.73 gear is the killer here.

The EQ Vortec #CH350C or the Standard intake pattern #CH350I with their 170cc intake port would likely be more in line with what you will want.

Last edited by ericnova72; 08-24-2014 at 02:35 AM.
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Old 08-24-2014, 11:56 AM
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Quote:
Originally Posted by GMC boogie View Post
I found these for $550 a pair plus $70 shipping. I may go ahead and get them but, I am kinda on the fence as to whether these may be too large for my application.
. If that's assembled, I'd jump on them... but not go very big on the cam with that rear end ratio...
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Old 08-28-2014, 08:10 PM
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Got them in. Here are some pics:
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Old 08-28-2014, 08:45 PM
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They are a nice clean casting.

Hopefully, the angle plugs don't cause you some header fitment issues. Many of the more common header designs have problems clearing the spark plugs with angled plug location.
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Old 08-28-2014, 08:58 PM
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I didn't care for the angle plug, its all that was available. I looked at my headers and they should be a go.

---------- Post added at 08:58 PM ---------- Previous post was at 08:52 PM ----------

BTW, I installed some 3.73,s in the truck today. I found a good '92 700R4 on CL Monday and took it straight to my tranny guy. As soon as he gets done, I will put it in when I get the time.
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Old 08-29-2014, 08:40 AM
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Quote:
Originally Posted by GMC boogie View Post
and I will never spin it past 5500.
. Those 200cc heads and that 3.73 rear will cure you of that rather quickly... LOL!

. BTW, what's the spring pressure spec.s on those heads? Are they set for flat or roller cam?

. What's the spring diameter? Stock 1.25"? Or bigger?
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Old 08-29-2014, 10:53 AM
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Quote:
Originally Posted by GMC boogie View Post
Got them in. Here are some pics:
One note, that you're probably already aware of, running larger than ideal heads isn't such a bad thing, but to keep power where you want it you'll need a cam with slightly less duration than you would normally use. We're talking 2-4 degrees, not a lot. I would also close the LSA up by a degree, maybe two.

I have a feeling you'll be surprised a how well those heads can work right off idle, 200cc's is not as big as everyone makes it out to be.
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Old 08-29-2014, 11:32 AM
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I plan on keeping the camshaft somewhere in the 214-218 at .050 range and lift at .500-.525 at the valve. Undecided on LSA, no narrower than 110 , no wider than 112.

Buzz, I bought the heads bare, they will accept a 1.55 spring without machining.
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