Manley Turbo TUFF Crankshaft (Stock Stroke, 79mm), 2004-2021 STi & 2006-2014 WRX

For High Horsepower/High Boosted Applications, explore our fully machined "Turbo Tuff Series" billet cranks, available for Mitsubishi 4G63/4G64 and Subaru EJ20/EJ25 engines.

Included:
• Manley Subaru EJ20 Billet Crankshaft - 79.00 mm Stroke

Features:
• 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.