An uncut head is approximately 3.246. Your thin head is cut way too much to
be of any use. Possibly it can be saved by the use of a thick copper head
gasket.
Mike
----- Original Message -----
From: "Jim Cawrse" <nqrithjim@hotmail.com>
To: "Datsun Roadsters" <datsun-roadsters@autox.team.net>
Cc: "Brad Holmes" <bholmes@monk.aum.edu>
Sent: Friday, May 17, 2002 3:26 PM
Subject: a tale of two 1600 heads
> For all:
> Some years ago I aquired two 1600 heads that were
> in fact laying in a scrap heap waiting to be sold for
> the value of the aluminum. I finally got around to
> taking them to the local best head guy. One head
> had a deck of 3.170, which is visibly thin, so the
> head doctor did nothing with it. The other one was
> a lot thicker, so as we had previously agreed, he
> pressure checked it (sat, $35) and removed a number
> of broken studs and bolts and checked all threads
> so its ready for a valve job or porting or whatever
> ($35). He also cleaned up the face, .003 taken off
> so the deck on this one now measures 3.242 ($35).
>
> So, the bad part is I forgot what someone told me the
> deck height of a new 1600 head is supposed to be,
> so I need to know if I just blew one hundred bucks on
> a head that is still too milled for practical use, or if
> I have a good spare head now!
>
> He said the thin head could possibly be used for someone
> wanting really high compression, but he
> could not understand for other than some sort of race
> purpose (on race gas) why so much would be taken off.
> He also said if the heads get really rare it might be possible
> to have shims made, or open up the combustion chambers
> to lower compresssion, so I should keep the thin one around
> anyway. (I was going to go get my 3 bucks or so of aluminum
> scrap value out of it)
>
> Thanks in advance for any advice! I'm going out back now
> to get more work done putting the engine and tranny back
> in SAKE RKT.
>
> Best Regards,
> Jim
> Chesapeake, VaGet more from the Web. FREE MSN Explorer download :
> http://explorer.msn.com
>
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