Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

General Specifications

GENERAL SPECIFICATIONS
Valve Guide Bore Diameter (Insert Counterbore Diameter)
Intake 6.06 mm (0.23858 inch)
Exhaust 6.06 mm (0.23858 inch)
Head Gasket Surface Flatness 0.05/0.520/076 150 x 150
Head Face Surface Finish 15 microns max.