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 Dimensions:




Valve Head Diameter (a):
Intake: 32.00 mm (1.259 in.)
Exhaust: 28.00 mm (1.102 in.)

Valve Stem Diameter (b):
Intake: 6.97 mm (0.2744 in.)
Exhaust: 6.94 mm (0.2732 in.)

Valve Length (c):
Intake: 95.50 mm (3.760 in.)
Exhaust: 98.20 mm (3.866 in.)

Valve Face Angle (d):
Intake: 45°
Exhaust: 45°