If you're looking to enhance your engine's performance, the Manley Connecting Rod, ROD-SBC LS-1 6.125 LIGHT is a fantastic choice. Designed specifically for SBC (Small Block Chevrolet) applications, this connecting rod is engineered to deliver exceptional strength and reliability. Whether you're building a high-performance street machine or a dedicated race car, this rod is built to meet your needs.
This connecting rod is precisely crafted with an average gram weight of 640, ensuring a balance between strength and performance. The big end bore measures 2.225, while the pin end bore is 0.9281, making it compatible with a variety of setups. The center-to-center length of 6.125 is perfect for LS-1 applications, allowing for seamless integration into your engine build.
The Manley Connecting Rod is designed to fit a range of vehicles equipped with SBC LS-1 engines. It's worth noting that while these rods are generally universal, it’s always a good idea to double-check compatibility with your specific vehicle and engine setup. Doing your homework ensures a smooth installation and optimal performance.
Customers who have purchased the Manley Connecting Rod 14159R6-1 rave about its durability and performance. Many have noted how it has significantly improved their engine's responsiveness and power delivery. With positive feedback highlighting its reliability in both street and race applications, this connecting rod has become a trusted choice among automotive enthusiasts.
Universal Fitment: While these rods are designed to be universal, we recommend verifying the fitment for your specific vehicle. This ensures that you get the best performance and reliability from your investment.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Manley Performance, formerly called Manley Speed Equipment, was established in 1966 by Hank Manley shortly after his graduation from Brown University. His interest in the performance and racing traced back to 1960 when, at age 17, he rebuilt a 312 CID Ford V8 engine, installed a camshaft and three two-barrel carbs, and raced a ’56 Thunderbird on New Jersey’s streets. Initially, the company’s product lineup included stainless valves, lifters, camshafts, forged pistons, vanadium valve springs, pushrods, and timing chain kits. By 1998, Manley had outgrown its first Bloomfield, New Jersey facility and bought several acres in Lakewood, New Jersey. It was around this time that the brand’s name formally changed to Manley Performance. Nearly a decade later, the production space doubled in size.
Evolving in the Automotive SpaceLed by GM Michael Tokarchik in 2002, Manley entered the high-performance passenger car market as an OEM supplier of connecting rods for the 2003/2004 Ford SVT Mustang Cobra. Production reached 2500 rods per week without missing a single delivery date. Ford awarded Manley its highest ever supplier rating. Manley’s presence in the OEM market continued from there as a supplier for the Ford GT. After nearly 50 years since its inception, Manley continues to be globally recognized as the leading manufacturer of performance valves, connecting rods, cylinder head components, pushrods, drive and oil systems, and several other engine parts.
What is Manley’s Specialty?Manley Performance specializes in high-performance engine internals that range from stock replacements to full-on race applications. They have been the standard of the industry since their inception; a fact that still remains true now as they have ventured into new markets. Today, Manley Performance continues to re-define itself in a high-performance aftermarket industry that is constantly evolving. The brand has developed a wide range of new products for growing markets that include sport compact, Ford modular, and Chevy LS. Manley also maintains its leadership role with the traditional V8 engine business.
Get Manley Performance at Vivid RacingIf you are in need of a serious upgrade to your engine, then Manley Performance parts should be on your list. Like all of our suggested manufacturers, Manley uses the best materials available to ensure a quality part for your engine. We carry Manley connecting rods, crankshafts, pistons, and valve components. The large lineup of domestic parts includes sport compact vehicles, Ford modular engines, GM’s LS series internals, and HEMI product upgrades for Chrysler.
If you can’t find what you’re looking for or need help choosing the right part for your car, call our sales team at (480) 966-3040. We are here to make your buying experience a breeze.