RE: was 67 300 Re: 67 "Magnum" Head.. Re..516 heads

["Westerlund, Ken" <kwesterlund@xxxxxxxxxx>]

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Are any of the after market aluminum heads squelch area heads?
Thanks,
Ken

-----Original Message-----
From: Earl Helm [mailto:earlh@xxxxxxxxxxxxxx] 
Sent: Monday, March 14, 2005 10:21 AM
To: 1962to1965mopars@xxxxxxxxxx
Subject: RE: was 67 300 Re: 67 "Magnum" Head.. Re..516 heads

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Joe is right, the small valve 915 heads came on the non-magnum 440
C body cars and Imperials in 67. I think everyone misses the real issue
with 915 - 516 heads. Yes they will produce a higher compression ratio
because of the chamber, but the chamber is the real advantage. A 906
head has some small inherent flow advantages, but the open chamber
is not a squelch area chamber. I am including a great link to the first
of three cylinder head articles. All three are a good read.

http://moparmusclemagazine.com/techarticles/5115/

Earl,


There were low performance 915's with the smaller 1.60 exhaust  valves.
And
I think if you open up the 516's to the larger exhaust you  have about
the 
same head, although I don't know what they flow.   Joe

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