I used a lot of those heads and as mentioned just grind away the bottom of
the housing until it clears. I well remember the first time I took .190" off
one of those heads then tried to put it on the block, "no fittee" cause the
housing area was interfering. Grind grind grind, cut cut cut , okay.
Anyway, the thickness is the same only later the casting was made with the
flat on the bottom of the housing part. Speed and horsepower never came
without a little daring...... Good luck....
----- Original Message -----
From: <BFEKENG@aol.com>
To: <WEmery7451@aol.com>
Cc: <Fot@autox.team.net>
Sent: Monday, March 06, 2000 9:53 PM
Subject: Re: Early High Port Heads & Figure 8's
> We had to use these TR3 heads in the late 50's as there werent TR4 heads
yet.
> We milled .150" off ,but as terry ann pointed out we had immediate &
severe
> interference between the round bottom of the thermostat portion of the
head &
> the water pump. Our solution was to grind away the offending part of the
> bottom of
> the head extension & the matching part of the water pump housing until we
had
> approx. .025" clearance which we checked with a feeler gauge & a
flashlight.
> We found we could grind a lot of material off without going through any
where.
> We did however try to take half off of each. Worked very well.
>
> Ken Gillanders
>
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