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1970 Honda CB450K Intake & Exhaust Valve Ordering

Keep intake and exhaust requirements distinct when buying valves for a 1970 Honda CB450K. The two products carry different Honda references and are each supplied individually. Use the cylinder-head assessment to decide which positions need replacements and how many of each to order.

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Honda CB500 CB450 CL450K0 CL450K2 CL450K3 intake valve 14711-292-000

Honda CB Intake Valve ~ Replaces 14711-292-000

$26.95 USD
28-6920
Restore proper engine performance with this Intake Valve, designed as a direct replacement for the original Honda component. This valve replaces OEM part number...
New
Honda CB500 CB450 CL450K0 CL450K2 CL450K3 exhaust valve 14721-292-010

Honda CB Exhaust Valve ~ Replaces 14721-292-010

$26.95 USD
28-6919
Restore proper engine performance with this Exhaust Valve, designed as a direct replacement for the original Honda component. This valve replaces OEM part numbers...
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1970 Honda CB450K · Valvetrain Parts Buying guide

Make two quantity lines from the head assessment

Intake 14711-292-000 and exhaust 14721-292-010 / 14721-292-000 identify separate replacement choices. Neither purchase is described as a complete head-service set. Match the component and position before calculating the required quantities.

Parts to consider

Honda CB Exhaust Valve ~ Replaces 14721-292-010 Exhaust valve sold individuallyReplacement valve listing Honda 14721-292-010 and 14721-292-000. Choose the required quantity for the exhaust positions identified by inspection.View part Honda CB Intake Valve ~ Replaces 14711-292-000 Intake valve sold individuallyReplacement valve listing Honda 14711-292-000. Match the intake component and count the individual pieces needed.View part

Record the position with the reference

Keep inspection notes alongside the intake or exhaust reference when preparing the order. The matching motorcycle application does not make the valve types interchangeable. If the installed engine or removed component differs, resolve that identity before choosing the replacement by the motorcycle year alone.

Finish the list after the head is assessed

The product choice does not establish the condition of the surrounding cylinder-head components. Have those assessed with the removed valves, then list additional service requirements separately. Neither valve description promises that one new part eliminates all other work or includes supporting hardware.

Buying questions

How should I combine intake and exhaust replacements in one order?

Use separate quantity lines. The intake reference is 14711-292-000; exhaust references are 14721-292-010 and 14721-292-000. Each product is sold individually, so count the required pieces of each type from the head assessment.

Does individual supply mean I must replace only one valve?

It describes the purchasing unit, not the repair decision. Order the number of intake and exhaust valves required after assessment. The descriptions do not specify a mandatory replacement count or supply a combined set for all positions.

What should be confirmed before choosing valves for a changed engine?

Identify the installed engine and compare the required valve references with the removed components. The listed motorcycle application is useful, but cannot document a previous engine change. Confirm the component identity before calculating quantities or selecting additional head-service parts.

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Send your model and year, plus photos of your existing part and any changes to the original setup.

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