There is a Supplement section to the last Chevette manual, which varies from the information given in the main engine section.
Old section:
New section:In case the second image disappears, the text is:
"Contrary to the instructions given in Chapter 1, Section 34, it is now recommended that a 1 to 2 mm diameter bead of jointing compound (Hylomar PL 32/M) is applied to the upper left-hand face of the cylinder block along the outer push rod rail and also along the outer edge of the cylinder head gasket upper face in the same vicinity [...]".Whatever works for you, works.