Cylinder head assembly instructions

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Pairing numbers or identification for cylinder head, cylinder head cover and camshaft bearing saddles.

The cylinder head, cylinder head cover and camshaft bearing saddles are machined together and must therefore always be installed together. Observe pairing numbers.

Fig 1: Identifying Pairing Numbers Of Cylinder Head And Cover

Courtesy of PORSCHE OF NORTH AMERICA, INC.

Pairing number of cylinder head cover
Pairing number of cylinder head
Pairing number of the two bearing saddles

Fig 2: Identifying Pairing Number Of Two Camshaft Bearing Saddles

Courtesy of PORSCHE OF NORTH AMERICA, INC.

NOTE:

The letters E or A before pairing numbers mean:
E = Bearing saddle for inlet camshaft
A = Bearing saddle for exhaust camshaft