3.5 60 Deg Long Radius Elbow

The BOYCE 3.5 60 Degree Long Radius Elbow (model LR3560E) is a precision exhaust component engineered for high-temperature applications requiring smooth directional flow and minimal turbulence. With a 3.5-inch diameter and 9-inch radius bend, this long-radius elbow reduces backpressure and flow restrictions compared to standard short-radius designs, making it ideal for custom exhaust systems, industrial piping, and performance vehicle builds where exhaust scavenging efficiency directly impacts engine performance.

Constructed from durable steel with a natural finish, the component measures 9.625 x 11.25 inches across its legs and weighs 3.63 pounds, providing substantial wall thickness for sustained high-temperature cycling. The 60-degree angle accommodates intermediate directional changes in exhaust routing while the long-radius profile maintains laminar flow characteristics—critical for vehicles running headers and tuned exhaust systems where flow velocity and scavenging pulses matter. The extended 9-inch radius geometry delivers approximately 15–20 percent better flow efficiency than comparable short-radius elbows, a measurable advantage in performance applications.

This elbow suits fabricators, hot rod builders, and engine builders assembling custom exhaust systems for street vehicles, race engines, and industrial equipment. It's particularly valuable in situations where off-the-shelf exhaust bends don't match existing routing, or where performance gains from optimized flow justify custom assembly. Buyers frequently specify long-radius elbows over standard 45-degree or 90-degree alternatives when designing header-to-collector transitions or primary pipe sections where flow quality directly translates to horsepower and throttle response.