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Old 10-25-2008, 10:54 AM
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66 plymouth fury heads

i was wondering what cc and if there closed chamer or closed chamber heads the numbers on the head are 2406516-9
04016 its off a 383 commando


thanks for helping

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Old 10-25-2008, 07:01 PM
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commando engines used 440 heads, but I don't think the 383 Commando engine was produced from the factory until 1968 when it was used in the Road Runner and Cornets as a mid level engine.. I checked allpar and there is a mention of commando's in '58, but they were 350 CI, and just really the marked start of the Mopar wedge engine which evidently is 350 CI- 440 CI
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Old 10-25-2008, 07:26 PM
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The Commando was there in 66.
Should be closed chamber.
By 68 they were all open chamber.

Been so long since I have worked or played with a Chrysler, I cannot be absolutely positive.

My 67 300 with the TNT 440 was closed chambered

The 68 Road Runner with a 383 Magnum was open chamber
the 69 GTX with the 440 Magnum was open chambered.

I believe the 60 Chrysler New Yorker with a 412 Golden Lion was closed chambered
The 62 Chrysler with the 361 was closed chambered.
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Old 10-26-2008, 07:09 AM
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all the '66 383 heads I see listed in the NHRA blueprint charts are listed at 73.5cc's

http://nhra.com/tech_specs/engine/bl...ts/CHRY-66.rtf
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Old 10-31-2008, 10:55 PM
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All Mopar BB heads were closed chamber through 67.
From 68 on, all were open chambers.
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Old 11-01-2008, 06:58 AM
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Yup closed chamber, and small valve (1.60 exhaust). Sorry can’t lay my hands on the CCs for these heads. Just a recommendation…….while using listed head CC to ballpark compression ratio is a good tool in real life you often find that the chambers are often actually a bit larger than the factory claims and often vary from chamber to chamber in the same head.

“…..commando engines used 440 heads……” this type of comments always amuses me. With the exception of the 1967 HP 440 one year only head there were no “440” heads. Unlike Chevy and Ford, Chrysler used the same head in the various year groups regardless of displacement. A 290 HP 383 used the same head as a 390 HP 440 6 BBL (1968-1970). Chrysler changed compression thru pistons not heads.
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Old 11-01-2008, 10:49 AM
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Quote:
Originally Posted by 1957plymouthhemi
Yup closed chamber, and small valve (1.60 exhaust). Sorry can�t lay my hands on the CCs for these heads. Just a recommendation��.while using listed head CC to ballpark compression ratio is a good tool in real life you often find that the chambers are often actually a bit larger than the factory claims and often vary from chamber to chamber in the same head.

��..commando engines used 440 heads��� this type of comments always amuses me. With the exception of the 1967 HP 440 one year only head there were no �440� heads. Unlike Chevy and Ford, Chrysler used the same head in the various year groups regardless of displacement. A 290 HP 383 used the same head as a 390 HP 440 6 BBL (1968-1970). Chrysler changed compression thru pistons not heads.
As usual your comments are spot on.
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Old 11-01-2008, 04:31 PM
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they are 516 heads. 73.5 cc 2.08 intake 1.6 exhaust. 1964-1967
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Old 11-03-2008, 07:05 AM
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Randyhemi is right

Sounds like this guy knows his Mopars! The 516 heads are still popular with Mopar guys where they want to pick up compression without getting into the short block. Any competent machine shop can install larger valves, bronze guides and hardened seats. I have a set of these nicely done and fully ported. The problem with them is that you can get so much time and money in them that it is just not worth it when you can get aluminum heads that work so much better right out of the box! All I use now are Edelbrock Performer RPMs, 440 Source Stealth heads or Indy heads (which are the most expensive but worth it for the longer valves). The best price is with 440 Source and they are very high quality. My 516 heads are just sitting now. I don't think I could give them away (not that I would)!
Pat Fogel
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