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

Valve, Intake/Exhaust

Valve Length (Overall) Intake Minimum 4.899 Inch (in)
Maximum 4.924 Inch (in)
Exhaust Minimum 4.927 Inch (in)
Maximum 4.952 Inch (in)
Valve Stem Diameter All Minimum 0.311 Inch (in)
Maximum 0.312 Inch (in)
Stem to Guide Clearance All Minimum 0.001 Inch (in)
Maximum 0.003 Inch (in)
Valve Face Angle Intake 46.5 Degrees (deg)
Exhaust 46.5 Degrees (deg)
Valve Head Diameter Intake Minimum 1.905 Inch (in)
Maximum 1.915 Inch (in)
Exhaust Minimum 1.495 Inch (in)
Maximum 1.505 Inch (in)
Tip Refinishing Max Allowable 0.010 Inch (in)