Cylinder Head Dimensions

Cylinder Head
Lifter Bore Diameter (Intake and Exhaust)
Standard 33.000-33.025 mm (1.2992-1.3002 in.)
Service Limit 33.03 mm (1.300 in. max.)
Camshaft Bore Diameter
Standard 29.000-29.026 mm (1.141-1.142 in.)
Service Limit 29.05 mm (1.144 in. max.)
Head Gasket Deck-to-Camshaft
Cover Surface 112.87-113.13 mm (4.4449-4.4527 in.)
Camshaft Cover-to-Plug
Well Surface 130.90-131.10 mm (5.1535-5.1614 in.)
Valve Guide Bore
Standard 11.337-11.363 mm (0.446-0.447 in.)
Service Limit 11.368 mm (0.4475 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.)