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Quick 351W question

  • Thread starter Thread starter nick6704
  • Start date Start date Jun 18, 2005
N

nick6704

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Sep 7, 2004
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Jun 18, 2005
#1
  • Jun 18, 2005
  • #1
I have a '69 Mach 1 with the 351W engine, and I was wondering what the combustion chamber volume is on the stock heads? I can't seem to find out on google or searching the forum. Thanks.
 

rbohm

Founding Member
Apr 12, 2002
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tucson,az
Jun 19, 2005
#2
  • Jun 19, 2005
  • #2
as i recall they run between 64 and 68 cc's on the early heads. later ones went as much as 77 cc's
 
C

cobraii351

Founding Member
Jan 10, 2000
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Altoona, PA
Jun 19, 2005
#3
  • Jun 19, 2005
  • #3
Going by the books, the 69-70 windsor heads were 60.4 cc's.
 

69Rcode_Mach1

Active Member
Apr 20, 2004
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Salt Lake City, Utah
Jun 19, 2005
#4
  • Jun 19, 2005
  • #4
Cobraii351 is right if they are the C9AE or the D00E heads they have the 60.4cc combutsion chambers.
 

1320stang

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Nov 13, 1998
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Edmond, Oklahoma
Jun 20, 2005
#5
  • Jun 20, 2005
  • #5
I'm going to say in the range of 60-64cc. I know what the book says, but I also know of FE heads that were cast in the same places around the same time and they vary by about 4cc as well. Almost never smaller than advertised, 99% of the time they're bigger than smaller. Typically the chambers are all within .4-.5cc of each other at worst.
 
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jbuening

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Apr 28, 2005
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Jun 21, 2005
#6
  • Jun 21, 2005
  • #6
Also don't fall for the trick of 4V heads vs 2V heads. They are the same heads. The 4V motors had flat top pistons thus increasing compression ratio, whereas the 2V had the valve reliefs. Just an FYI
 
C

cougar694u

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Apr 12, 2004
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San Antonio, TX
Jun 21, 2005
#7
  • Jun 21, 2005
  • #7
jbuening said:
Also don't fall for the trick of 4V heads vs 2V heads. They are the same heads. The 4V motors had flat top pistons thus increasing compression ratio, whereas the 2V had the valve reliefs. Just an FYI
Click to expand...

That's good to know. I thought the 4v heads had bigger ports as well.
 

Max Power

Active Member
Jul 31, 2003
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St Paul
Jun 21, 2005
#8
  • Jun 21, 2005
  • #8
Only on Clevelands.
 
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