Allen, I'm not sure about the numbers, but the earlier heads have the intake
ports closer together, about 3/4" and the later heads are spaced about 1"
apart.
I believe the earlier heads were about 3.46 " thick and the later heads wee
about 3.55 " thick.
Some of the later heads also have an EGR valve connection on them and these
are the wider spaced ports. I believe there was one year (72 or 73 or maybe
both) the head had the wide spacing and didn't have the EGR valve tapping.
Of course this probably only applies to US export cars and others may have
been different, especially if they might of had PI.
Charly Mitchel
TR6 #44
----- Original Message -----
From: "Allen Washatko" <awashatko@wi.rr.com>
To: "Friends of Triumph Triumph" <fot@autox.team.net>
Sent: Tuesday, May 09, 2006 10:27 AM
Subject: [FOT] TR-6 Head
> FoT,
>
> Does anyone know how to determine if a TR-6 head is the early or late
> version? Mine has been milled and I'm trying to determine how much
> material has been removed. The information I have shows that the early
> stock head is thinner than the later version. I have three numbers in
> the casting: right front has 219019, right middle has 313248 and right
> rear has V3298. Do these mean anything helpful?
>
> Thanks for any assistance.
>
> Allen
>
> Jody & Allen Washatko
> N65 W5567 Columbia Road
> Cedarburg, WI. 53012
>
> tel. (262) 375-6888
>
>
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