BBC Roller Lifter Set .903 Dia. +.300 O/C

The BBC Roller Lifter Set .903 Dia. +.300 O/C from Morel Lifters is designed for serious big-block Chevrolet engine builders who demand maximum valve train reliability and performance. This set is ideal for high-horsepower applications, including race engines and street performance builds, where consistent valve actuation is crucial.

Featuring a .903-inch diameter roller design and +.300 over-center geometry, these lifters minimize contact stress on the camshaft lobe while optimizing lifter geometry for enhanced oil flow. Made from hardened steel, they are engineered to withstand extreme valve spring pressures and continuous cycling at high RPMs, allowing for steeper lobe profiles without sacrificing stability.

This roller lifter set is essential for any big-block Chevrolet engine, whether it’s a 427, 454, or 496 cubic inch build. Installation requires compatible BBC cylinder heads and a matching roller camshaft, so ensure your cam supplier specifies roller lifter compatibility before ordering.