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Dart 227cc Pro 1 CNC'd Heads

 
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trmnatr



Joined: 15 Aug 2009
Posts: 227
Location: Maryland

PostPosted: Mon May 24, 2010 4:00 pm    Post subject: Dart 227cc Pro 1 CNC'd Heads Reply with quote

We just took some pics of the Dart 227 Pro 1 CNC'd Heads for testing in the 327 .060" aluminum rod engine. I still have to upload the pics and dont really have the time right now, but will upload them within an hour

Just some advertised specs on them,
- 227cc CNC'd Intake Runners
- 85cc exhaust ports
- CNC Chambers
- 2.08"/1.6" valves
- Dual Springs
- Titanium Retainers

Advertised Airflow from Stan Weiss's cylinder head data base (these will be flowed however and the numbers posted)

.200" 158 - 117
.300" 209 - 149
.400" 257 - 182
.500" 293 - 211
.600" 302 - 220
.700" 309 - 226
.800" 314 - 232
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trmnatr



Joined: 15 Aug 2009
Posts: 227
Location: Maryland

PostPosted: Mon May 24, 2010 4:53 pm    Post subject: Reply with quote

Dart 227cc Pro 1 CNC'd Intake Runners


Dart 227cc Pro 1 CNC'd Chambers


Dart 227cc Pro 1 CNC'd Exhaust Runners


Dart 227cc Pro 1 CNC'd Heads, Retainers/Springs

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Hitchcock



Joined: 30 Aug 2009
Posts: 15

PostPosted: Mon May 24, 2010 8:56 pm    Post subject: Reply with quote

I know a guy who has a set on a 355 and runs nines on gas. The car weighs less than 2600 race ready. He said it only 60' at 1.50's.
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Scott Smith



Joined: 12 Nov 2007
Posts: 686

PostPosted: Tue May 25, 2010 4:48 am    Post subject: Reply with quote

Not knocking these heads but once you have seen one you have seen them all. They all have a push rod pinch from hell.
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68corvette



Joined: 12 Nov 2009
Posts: 1

PostPosted: Tue May 25, 2010 11:41 am    Post subject: Reply with quote

What is the pinch? looks like ~2sq.in or so?
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SStrokerAce



Joined: 15 Apr 2009
Posts: 183

PostPosted: Tue May 25, 2010 2:14 pm    Post subject: Reply with quote

Yeah the Dart casting doesn't have much room there... think we get about 2.4 as they sit
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trmnatr



Joined: 15 Aug 2009
Posts: 227
Location: Maryland

PostPosted: Wed May 26, 2010 10:08 pm    Post subject: Reply with quote

68corvette wrote:
What is the pinch? looks like ~2sq.in or so?


Will know soon,,,,,
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lun40119



Joined: 30 Jan 2010
Posts: 1
Location: Appleton WI

PostPosted: Mon Jul 26, 2010 1:48 pm    Post subject: Reply with quote

SStrokerAce wrote:
Yeah the Dart casting doesn't have much room there... think we get about 2.4 as they sit


Nothing some welding won't fix. The Dart casting can support some pretty big coin. Smile Hi guys Very Happy
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SStrokerAce



Joined: 15 Apr 2009
Posts: 183

PostPosted: Thu Jul 29, 2010 11:17 am    Post subject: Reply with quote

Actually looking back it's smaller than that.... like 2.25" I think
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trmnatr



Joined: 15 Aug 2009
Posts: 227
Location: Maryland

PostPosted: Fri Jul 30, 2010 5:04 pm    Post subject: Reply with quote

SStrokerAce wrote:
Actually looking back it's smaller than that.... like 2.25" I think


The Dart 215 IIRC the head guy checking everything said was 2.2"
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