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

Bore diameter insert counterbore diameter	Intake	1.8542 in. MAX
		1.8532 in. MIN
	Exhaust	1.5645 in. MAX
Valve head diameter	Intake	1.57 inch
	Exhaust	1.30 inch
Valve face runout limit		0.002 in.
Valve face angle		45°
Valve stem diameter (STD)	Intake	0.2744-0.2752 inch
	Exhaust	0.2740-0.2748 in.
Over size	Intake	0.289-0.290 inch
	Exhaust	0.289-0.290 inch
	Intake	0.304-0.305 inch
	Exhaust	0.304-0.305 inch