.
. . Looks
to have about .002" or less warpage on bottom. Average
thickness at front of head is 4.457" Average
thickness at rear of head is 4.472" Nice
surfaces on cam bearings (towers) The prominent item of
interest is one of the spark plug holes (#2) is threaded;
or partially threaded; but huge; about .600"; like
possibly it was being prepared for a thread replacement
coil installation. Has
rocker pivots and pivot bushings. DATSUN
U20 USED HEADS
Info .
Datsun
SRL311 Cylinder Head from Rallye Enterprises,
Ltd.
Head
has about .020-.025" crown to take out of top middle.
Cutter should be stopped before it reaches the ends of
the head; so the area under the end towers are only
skimmed.
For
General Info on U20 Heads click on Rebuilt
Heads
Info.
Datsun SRL311 Cylinder
Head from Rallye