I have a 1972 TR6 CC75059LO, the 59th (or is that 60th) car after the switch to
the dual exhaust and long branch intake manifold. I always that the 1972 model
(built in 1971 in this case) was the point in time for the cylinder head
change. I gues the head may have been around for the PI cars prior to the USA
change.
Bob Kramer
rkramer3@austin.rr.com
---- "Robert M. Lang" <lang@isis.mit.edu> wrote:
> From the Goodparts web site:
>
> http://goodparts.com/shop/index.php?categoryID=36
>
> scan down to the manifold gasket section.
>
> Early has 1.875 spacing (center to center)
> Late has 2.187 spacing (c to c)
>
> c ya,
> rml
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