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  • SF-02-000

    SpeedFactory Racing 4140 Head Stud Kit - Honda/Acura B and K-Series Engines

    WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

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    SpeedFactory Racing 4140 Head Stud Kit for Honda/Acura B & K Series (B Series VTEC engines - B16A, B18C1, B18C5, B20VTEC, LSVTEC, K20, K24)

    The SpeedFactory Racing 4140 Head Stud Kit is great for most forced induction applications up to 800+HP and includes oversized forged nuts & washers for superior load distribution. A hex broach is incorporated on the top of the stud for ease of installation and a dog point end seats the stud in the block and preloads the fastener for consistent & accurate torqing.

    • 210,000 psi tensile rating
    • Hex broach on the top of the stud for ease of installation
    • Dog point design for superior preload
    • Oversized forged 9/16” 12-point nuts and hardened parallel ground washers for superior load distribution compared to the smaller 1/2” nuts and washers most use
    • Direct drop-in replacement for OEM head bolts.
    • Corrosion-resistant black oxide coating
    • Each kit includes a complete set of 4140 head studs, nuts, washers and ARP Ultra-Torque Assembly Lubricant.
    • DOES NOT FIT: K24Z7, FULL B18A/B (NO VTEC HEAD)Keywords: ARP GSR HEADSTUD HEADSTUD LSVTEC LS/VTEC STUDS