Cylinder Head Dimensions

Lifter Bore Diameter (Intake and Exhaust)
Standard 21.422-21.448 mm (0.8434-0.8444 in.)
Service Limit 21.45 mm (0.8445 in. max.)
Camshaft Bore Diameter
Standard 44.475-44.500 mm (1.7510-1.7520 in.)
Service Limit 44.513 mm (1.753 in. max.)
Head Gasket Deck-to-Camshaft
Cover Surface 112.87-113.13 mm (4.444-4.454 in)
Valve Guide Bore
Standard 11.337-11.363 mm (0.446-0.447 in.)
Service Limit 11.368 mm (0.448 in. max.)
O.S. Guide Bore
Standard 11.587-11.613 mm (0.456-0.457 in.)
Service Limit 11.613 mm (0.457 in. max.)