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Callies engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Callies lineup with fast shipping and expert fitment support — order with confidence.
Ensure your engine's reliability under extreme stress with the Callies Ultra Rod Bolt. Designed specifically for SB Ultra connecting rods, these 7/16 x 1.450 fasteners provide the clamping force required for high-RPM racing applications. Constructed from premium H11 chromoly steel, these bolts offer superior tensile strength and fatigue resistance compared to standard hardware.
When building a high-performance engine, fastener integrity is non-negotiable. These bolts are engineered to maintain consistent torque values, preventing rod cap walk and ensuring your bearing clearances remain stable throughout the power band. Whether you are refreshing a drag engine or prepping for endurance racing, these bolts deliver the peace of mind that your rotating assembly is secured by industry-leading components. Trust your build to the precision of Callies engineering, available now at GGCRACING.
Other popular Callies products customers consider together:
Callies engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Callies lineup with fast shipping and expert fitment support — order with confidence.
Ensure your engine's reliability under extreme stress with the Callies Ultra Rod Bolt. Designed specifically for SB Ultra connecting rods, these 7/16 x 1.450 fasteners provide the clamping force required for high-RPM racing applications. Constructed from premium H11 chromoly steel, these bolts offer superior tensile strength and fatigue resistance compared to standard hardware.
When building a high-performance engine, fastener integrity is non-negotiable. These bolts are engineered to maintain consistent torque values, preventing rod cap walk and ensuring your bearing clearances remain stable throughout the power band. Whether you are refreshing a drag engine or prepping for endurance racing, these bolts deliver the peace of mind that your rotating assembly is secured by industry-leading components. Trust your build to the precision of Callies engineering, available now at GGCRACING.
Other popular Callies products customers consider together:
