Manley Subaru EJ20/EJ25 4340 Billet 79mm Stroke Turbo Tuff Series Crankshaft - 190040B

Manley Performance is a premier manufacturer of high-performance engine components, specializing in forged pistons, connecting rods, crankshafts, and valvetrain parts built for extreme horsepower applications. Proudly made in the USA, Manley combines advanced engineering with precision manufacturing to deliver race-proven durability and reliability for street, drag, and motorsport engines. With a legacy spanning over 50 years, Manley Performance is trusted by professional engine builders and racing teams worldwide to push the limits of performance. Whether for high-horsepower street builds or championship-winning race cars, Manley provides the strength and innovation needed to dominate the competition.

Lightweight Design, 4340 Billet Material: Manufactured from 4340 ?Turbo-Tuff? Billet material, ensuring durability and performance. Crank pin and counterweights are gun drilled for lightening and the counterweights are fully knife edged to ensure precise balance and stability.Enhanced Strength: A multi-step heat treatment process and nitriding enhance the crankshafts' strength and longevity.Rigorous Quality Assurance: Each crankshaft undergoes stress relief, shot peening, and 100% magnafluxing to meet our stringent quality standards.Improved ?Direct Shot? Oiling Passages: Optimized oil passages for direct oiling from the main oil gallery to each main bearing ensuring bearing and journal longevity.
Fitment Years: 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012.