Alfa Romeo 33 Workshop Manual page 104

Cylinder head
Valve guide O.D. "a"
Diameter of valve guide bore "b"
Diameter of saating for valve Stern sealing cap. "f"~
Valve guide protrusion "8"
Min. cylinder head thickness after resurfacing "c" (1)
Max. error of parallelism betweenhe,ao surfaces
Max. out of flat on head lower surface
1350
305.85
Standard
Spare
Unit: mm (in1
Engine
1350 1500 1700
305.87 305.88 305.50
13,000 + 13,018
13,050 + 13,068
13,064 + 13,082
8,013 + 8,031
77,676 + 77,750
1.6 . 10-S
305.58