nf head on a kx block compression change

Bruce Bell bbell at surview.com
Sat Feb 2 23:51:08 EST 2002


The NF and the KX both have combustion chambers of 30 cc. Early
10 v heads, particularly the solid lifter models have a smaller
combustion chamber ~25 cc. And, as noted  below, 20v heads do
have even bigger combustion chambers. Short answer, your
compression ratio will stay the same at 8.5:1

Bruce

> -----Original Message-----
> From: quattro-admin at audifans.com
> [mailto:quattro-admin at audifans.com]On
> Behalf Of Mihnea Cotet
> Sent: Saturday, February 02, 2002 1:16 PM
> To: curryjer at attbi.com; Audifans
> Subject: Re: nf head on a kx block compression change
>
>
> At 13:03 2/02/2002 -0700, Jeremiah Curry wrote:
> >Hi all,
> >
> >I am considering putting a nf head on my 85 Coupe GT
> and have heard
> >conflicting reports as to whether that would change
> the compression ratio.
> >Can anyone shed some light on the subject? Either way
> the larger valves
> >would be a benefit.
>
> Jeremiah,
>
> I don't think this head swap would alter your engine's
> compression ration
> for the head is a 10v as well and, AFAIK, only 20v
> heads on 10v blocks do
> alter compression ratio...
> HTH and I hope I'm right (the others will surely
> correct me if I'm wrong on
> this one)
>
> Regards,
>
> Mihnea
>
>




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