More 6 cylinder head info
Charly Mitchel
----- Original Message -----
From: "Robert M. Lang" <lang@isis.mit.edu>
To: "Charly Mitchel" <charly@mitchelplumbing.com>
Sent: Thursday, June 16, 2011 8:17 AM
Subject: Re: [CWE] 6 cylinder head
>
> Hi Charly,
>
> I won't comment on cwe right now...
>
> Regarding head thickness, Richard Good has a pretty good table on his web
> site (www.goodparts.com) that can be used as a guideline, but keep in mind
> that production of TR6 heads is far from perfect (owing to multiple
> foundries and some other details), so the actual volume of the combustion
> chambers can vary a few cc's here and there.
>
> The late heads (73 and later) for US federal emmision specs were cast /
> finished at over 3.550 thickness to get the 7.75:1 compression ratio. YOu
> have to mill a crap load of metal off those heads to get resonable
> compression gain.
>
> I hope this helps!
>
> rml
> ---------------------------------------------------------------------------
> Bob Lang Triumph TR6!! | This space for rent
> Former NER Solo Chair |
> Voice:617-253-7438 | Cell: 339-927-4489
> ---------------------------------------------------------------------------
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