Product Summary

Chevy Small Block V8, H-Beam Connecting Rod Type

    Key Specs

    MFG. Part #U19135

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    Callies is pleased to introduce the Ultra XD connecting rod. This unique patent pending configuration is designed for additional cam to rod clearance in long stroke Small Block Chevy racing engines. In most cases, the XD rod will provide approximately .050″ more cam clearance than our conventional Ultras, and substantially more over many of our competitor’s rods.

    Watch the video to get a better understanding on how these quality connecting rods will benefit you.

    • 2.100 pin 6" long
    • Additional cam to rod clearance in long stroke Small Block Chevy racing engines
    • .050″ more cam clearance than conventional Ultras
    • Set of 8 rods
    • Center to center lenght: 6"
    • Crank pin diameter: 2.125"
    • Wrist pin diameter: .93"
    • Rod crank end width: .95"
    • Weight: 643 grams

    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 #U19135
    Connecting Rod TypeH-Beam
    Connecting Rod MaterialForged 4340 Steel
    Connecting Rod Length6.000"
    Wrist Pin StyleFloating
    Wrist Pin Diameter0.927"
    Rod Journal Diameter2.100"
    Connecting Rod Bolt Diameter7/16"
    Sold in QuantitySet
    Rod Crank End Width0.940"
    Weight643 grams
    Connecting Rod FinishShot-peened
    Connecting Rod Bolt BrandARP
    Connecting Rod Bolt MaterialL19 Alloy
    Fastener Yield Strength230,000 psi
    Connecting Rod Bolt Head Style12-Point
    Big End Bore Diameter2.225"
    Weight Matched SetYes
    New or RemanufacturedNew