Broken inner Valve springs Dart Iron Eagle SS Heads on Chevy 383 Stroker - Page 2 - Hot Rod Forum : Hotrodders Bulletin Board
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Old 12-30-2012, 08:03 PM
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Those heads are basically a more reliable stock replacement head. Of course it would had more power with a larger runner head. The question is does your combo have enough power to please you verses what you budget will allow. If you're just making a nice ride with some more pep than a stock motor many people will be pleased by a 383 with mild cam and the usual bolt ons. If you will be doing any racing there is a lot of power to be found with larger heads with components to match.

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Old 12-31-2012, 03:37 AM
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I won't be racing with the car and I am looking for some reliable horsepower.

I didn't measure the lift yet, but if it's the wrong cam I will replace it

What would be the best cam for these heads in a 383 stroker? And what kind of horsepower will this produce?
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Old 12-31-2012, 08:13 PM
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Spend 160.00 and get some bee hives an be done with it. Theirs no need to use a spring w/ a damper anymore, unless you really like to have your valvetrain work harder than it should. To many "new" springs to choose from these days.
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Old 01-02-2013, 03:40 AM
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.. Might call Dart and ask if they had a run of defective dampers... ask them why it broke... I think they take pride in customer service and their products...

.. Didn't know iron Eagle SS heads came that small... stock head size... maybe little better than stock heads... max out about 395 HP?

.. As others mentioned, if the main springs are scratched on the inside, they will fail at that spot and drop valves into the engine...
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Old 01-02-2013, 12:56 PM
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Broken inner Valve springs Dart Iron Eagle SS Heads on Chevy 383 Stroker

The heads are not the best suited for a hi performance 383 engine. I would suggest a head with 195-215 intake runners. Depends on how big of a duration your camshaft has. One way to get a good set of heads is to buy them bare and then have your machinist finish them with the springs for your camshaft. Patriot, CNC Ported Alum. Head, Chev SB, 195cc/64cc, Assm.-Competition Products or Patriot, CNC Ported Alum. Head, Chev SB, 215cc/64cc, Assm.-Competition Products
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Old 01-02-2013, 01:26 PM
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.. Try and buy American made heads and parts if you want yourself, friends, and relatives to have a job in the future... and if you want the parts to work well and last...
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Old 01-04-2013, 11:54 AM
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I found a number on the back of my camshaft but can't find info on it..

The number are:

3444
BR300-2H
11-18-02

Does anybody know what kind of cam this is??
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