[Fot] Fw: [CWE] 6 cylinder head

[robert bownes]

And I can personally attest to having taken 0.250" (yes 1/4") off of one.

I think the next one I do will be a bit less radical. :) and yes, I'm still
looking for a late head.

Bob

On Thu, Aug 4, 2011 at 12:26 PM, Charly Mitchel
<charly at mitchelplumbing.com>wrote:

> More 6 cylinder head info
> Charly Mitchel
> ----- Original Message ----- From: "Robert M. Lang" <lang at isis.mit.edu>
> To: "Charly Mitchel" <charly at 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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