[Fot] Head question on TR-6

[riverside at southslope.net]

cc the head so you know where you are.

an extra head gasket MAY have a negative impact 
in your quench distance.

From: Jim Gray 
Sent: Sunday, October 18, 2015 2:37 PM
To: 'Spitfire Racing' ; 'Fot' 
Subject: Re: [Fot] Head question on TR-6

Russ,

Yes you can adjust the volume that way but you can always go to a thicker head gasket to get you there. You also have to know the deck height of the block

it’s going on.

jim g

 


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From: Fot [mailto:fot-bounces at autox.team.net] On Behalf Of Spitfire Racing
Sent: Sunday, October 18, 2015 7:33 AM
To: 'Fot'
Subject: [Fot] Head question on TR-6

 

For the past 20 years or so I have had a NOS Circle B 6 cylinder head on a shelf in the parts room. For some reason I assumed it was for a TR-6 and would be ideal as a starting point for an eventual TR-250 project. Must to my disappointment I find it is a Mk2 GT-6 head. Likely it would afford too high a CR sitting on a 2500cc engine in stock condition. 

The question is……… Is it unreasonable to think I can open up the combustion chamber to bring the CR down to ~ 10.5:1 using it on a 2500cc application ?

Any of you have the combustion chamber volume to achieve this using flat top pistons ??

 

Anyone out there have done this before? No point in trying to reinvent the wheel.  Serial number on head is 517528.

Snow on the ground this AM and temps in the 20s has me already in the winter project mode!

 

Thanks,

 

Russ Moore

Spitfire #49

 

 



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