Manley 42139TM-8 Valve Lash Caps, 0.080 in. Thick, 5/16 in. Valve Stems, Minimum 0.250 in. Top, Tensilemax Steel, Set of 8

• .3110” stem valves (5/16”)
• Precision machined from TensileMax UHSS (Ultra High?Strength Steel)
• Thru-hardened to HRc59-61 to minimize wear due to aggressive rocker contact
• Proprietary heat treatment processes minimize distortion

Emissions Warning
Products sold on this website may not be legal for use on public roads or highways due to Environmental Protection Agency (EPA) restrictions or California Air Resources Board (CARB) emissions regulations. Federal and State regulations may restrict Product installation to pre-emissions regulation (Model Year 1974 or earlier) or to competition/racing vehicles used exclusively in
1) events organized by recognized bodies, authorizing permits for participating drivers.
2) racing event qualification, and 3) practice associated with events.
Installation of such products, including driving racing vehicles to and from the track, may be considered illegal “tampering” or as a “defeat device” and may result in federal and state penalties. It is the purchaser’s responsibility to ensure compliance with all applicable emissions laws, including California’s stricter standards.

Proposition 65 Warning:
This product may contain chemicals known to the state of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.