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    Grand Prix Spark Plug Wire Sets, 8.2 mm Thundervolt Custom-Fit 326, 350, 389, 400 Fits 1959-76 Grand Prix+ 6 other models

    Retail Price $79.95 You Save 10%
    OPGI Price$71.99
    Part# TC84051
    Mfg# 084051
    Select option for stock status

    Made for your engine application.

    The “Thundervolt” custom-fit (manufactured for your specific engine) plug wire sets were developed and dyno-tested to deliver more power and spark energy, while producing a smoother idle and improved fuel efficiency. The Ferrite spiral-wound core is coated with an exclusive copper/nickel alloy bonded by a conductive acrylic cover. The special dual Zimplex silicone outer jacketing protects up to 600° and provides extreme durability. The 100% silicone spark plug boots feature a double spring-locking plug terminal for a positive contact.

    COLORS AVAILABLE: Black, blue or red.

    • These high-performance items are not eligible for any further discounts or promotional pricing.
    • High Performance, designed to improve performance.
    • Find in OPGI's 2019 Grand Prix Catalog page 352.
    California Prop 65 Icon WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

    Vehicle Fitment

    Make & ModelYear RangeApplication Details
    Buick Skylark1961-1972 400 V8
    Pontiac Bonneville1959-1976 326, 350, 389, 400
    Pontiac Catalina1959-1976 326, 350, 389, 400
    Pontiac Grand Prix1959-1976 326, 350, 389, 400
    Pontiac GTO1961-1973 326, 350, 389, 400
    Pontiac LeMans1961-1973 326, 350, 389, 400
    Pontiac Tempest1961-1973 326, 350, 389, 400

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