[Fot] TR4 head milling

[Bob Kramer Gmail]

on page 43 of the "triumph preparation handbook
it says "to achieve the 11.7c.r. mill .150" from the stock cylender head face,use the 87mm cyl. & 
piston kit and a steel shim head gasket"


A  lot of us have done just that, successfully. 


You only get one chance at life, make it a TRIUMPH.

> On Apr 5, 2024, at 9:58 PM, tr4 via Fot <fot at autox.team.net> wrote:
> 
> 
> I have never had to go that far.  The problem would be not the combustion chamber but the flat surface would be way too thin and collapse in short order.  You would be much better off with popping the piston or go with a slight done to get that level of compression.
> 
> 
> 
> Sent via the Samsung Galaxy S23+ 5G, an AT&T 5G smartphone
> 
> 
> -------- Original message --------
> From: GREGORY THOMPSON via Fot <fot at autox.team.net>
> Date: 4/5/24 6:36 PM (GMT-06:00)
> To: FOT Triumph <fot at autox.team.net>
> Subject: [Fot] TR4 head milling
> 
> Has anyone had an issue with breaking into a water jacket on the TR4A head with taking off .150?
> 
> Thank you,
> 
> Greg Thompson 
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