944 S L4-2479cc 2.5L DOHC (1987)
The following head gaskets should be used with cylinder heads that have been machined to measurement 23.8 to 23.6 mm (see dimension A in Figure 1)
for a two valve head and 146.8 to 146.6 mm (see dimension A in Figure 2) for a four valve head. These gaskets are 1.4 mm thick. Standard head gaskets
are 1.1 mm thick. Part numbers for standard head gaskets are found in the Porsche parts microfiche catalogs.
