Doug,
There was a cam difference in about '73, to a milder cam.
Exhaust manifold change to two 3 into 1.
Narrow spacing on the head. I think this is only on '69 TR6's, but I'm not
sure.
Sometime the intake was changed to a straighter flow to the head, I'm not sure
when this took place.
"long" crank for '69's and TR250's, This long area is the machined part that
connects to the flywheel. There for the flywheels are different too.
Prettier bumpers on the pre-74 or 73.
Brass bushing in the earlier transmissions, not sure when they changed to
steel.
A type O/D (2nd, 3rd & 4th) for early 6's, J type o/d (3rd & 4th).
Trailing arm brackets changed One notch inner and two notch outer for up to
CC61570. 3 notch inner and 2 notch outer from CC61571.
A few distributor and carb changes.
alternator changes
water pump pulley differences
Sorry I can't give you the commission #'s when the changes occurred, but you
can look in the Moss or TFR catalogues for that.
I think the only performance differences are the camshaft, intake and
exhaust manifold changes. This is what you are really wanting to know isn't
it?
Not to mention the 1969 TR6's just look better than the latter ones!!!! LOL
I'm sure I'm setting myself up for feedback on this one!
Richard Seaton
'69 TR6 CC27413L(O)
----- Original Message -----
From: Doug Dwyer
Sent: Saturday, January 04, 2003 11:15 AM
To: TR6 List
Subject: More early-vs-late stuff: instruments
Thanks to all who helped with my early-vs-late bumper questions. Now....
Can the earlier style instruments be directly swapped into a late dash ? I
don't care for the later style with the bright bezels.
Emission controls aside, are there any other serious considerations between
early and late cars? Of course, I'm hoping everyone will say "no"......
My idea of course, is to broaden my search criteria in hopes of finding the
right car. If a few relatively minor (and easy) changes will make a late car
essentially the same as an early car, well, I've greatly increased the
number of candidates as the late cars seem much more plentiful.
Thanks again
The pest,
Doug Dwyer
Longview, Washington USA
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