Product Summary

Many Engines, Titanium, 1.600" Valve Head Diameter

    Key Specs

    MFG. Part #11421TB-8

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    These titanium exhaust valves from Manley feature a 1.6" head diameter. These ASCS type exhaust valve are for use with your Small Block Chevy, Ford, or Chrysler cylinder heads.

    • Type: ASCS
    • Head Diameter: 1.6"
    • Stem Diameter: .311"
    • Installed height: .200" longer
    • O/A Length: 5.15" 
    • .29" Tip Length
    • Under Head Angle/ Radius: 20° x 7/16"
    • .09" Margin
    • Back Cut Width / Angle: .1"/45°
    • Weight: 68 grams
    • Set of 8

    CARB Warning

    For race/ off road use or for use on pre-1966 vehicles.

    Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.


    MFG. Part #11421TB-8
    Material TypeTitanium
    Valve Head Diameter1.600"
    Valve Stem Diameter0.311"
    Installed Height.20"
    Weight68 grams
    GTIN Code807298057491
    Sold in QuantitySet