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Old 10-29-2005, 08:19 PM
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dart ss heads

perfomance auto hey i was wondering if anyone has used pereformance auto dart heads shown here also has anyone heard of the ss heads in 170 cc runner and a 67cc chamber?? considering buying a set from here as long as they are reputable and trustworthy thanks for your help

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Old 10-29-2005, 08:28 PM
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Those are fine castings. I've used Dart heads on my engine and one for a customer and I'm happy with them. World Products S/R Torquers are excellent castings as well.

Larry
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Old 10-29-2005, 09:27 PM
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Dart ss heads

I have World Product heads on my vette, they create excellent low end tourque and they create lots of good tourque on the big end. It's also a good buy for lots of power.
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Old 10-30-2005, 12:09 AM
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Iron Eagles are very good. I tend to lean toward AFR, but it depends upon the specific combination.

They all need a little chamber polishing and port clean up.
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Old 10-30-2005, 07:12 PM
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ok i recently looked on darts site and the ss heads on there are only 165cc intake runner and i think 64cc chambers how is it that the performance auto company has 170cc runners and a choice of 67 or 76 cc chambers also do yall think these heads with the 202/1.60s will flow as good as the vortec heads? if not how much difference
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Old 10-30-2005, 08:12 PM
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Manufacturers tend to be a little conservative on advertised numbers where volume is concerned. It make the heads seem better than they are when the flow numbers match those of heads that are advertised with actual volumes.

Advertised flow numbers are usually a little on the generous side as well so it kinda washes out in the end.

The heads may very well have 67cc chambers and 170cc ports but it's wise for Dart to say they are smaller in case someone cc's a casting that's a little off and tries to sue for false advertising. The dealers aren't responsible for manufacturing tolerances so they are safer than the manufacturer in that regard.

Larry
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