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

Face Angle 43.25-43.75 Degrees (deg)
Intake Head Diameter 1.88 Inch (in)
Exhaust Head Diameter 1.617 Inch (in)
Intake Overall Length 4.969-4.994 Inch (in)
Exhaust Overall length 4.978-40.12 Inch (in)
Intake Stem Diameter 0.372-0.373 Inch (in)
Exhaust Stem Diameter 0.371-0.372 Inch (in)
Intake Stem to Guide Clearance 0.001-0.003 Inch (in)
Exhaust Stem to Guide Clearance 0.002-0.004 Inch (in)