Our "Pro Series" 4340 alloy steel crankshafts are available with many value packed and high-performance enhancing features for a wide range of domestic engine applications.
Features
- Lightweight Design, 4340 Non-Twist Forging: Our crankshafts feature a lightweight 4340 non-twist forging, ensuring durability and performance.
- Enhanced Strength: A multi-step heat treatment process and nitriding enhance the crankshafts' strength and longevity.
- Micro-Polished Journals: Large radius journals are micro-polished to reduce friction and enhance performance.
- Rigorous Quality Assurance: Each crankshaft undergoes stress relief, shot peening, and 100% magnafluxing to meet our stringent quality standards.
Specs
- Manley Crankshaft, CRANK-4340 FORGE 4.250 STROKE CCW
- Product Market: Domestic
- Weight: 75.000
- Product Type: Engine Crankshaft
- Engine Stroke: 4.250
- Minimum Rod Length: 6.385
- Main Journal Diameter: 2.750
- Rod Journal Diameter: 2.200
- Bob Weight: 2350
- Crankshaft Material: 4340 Steel
- Lightened: No
- Reluctor Ring Included: No
- Rear Main Seal Type: 2 Piece
- Material: 4340 Steel
- Industry: Automotive
- Out of Stock Message: Call for Availability
- Title: Manley Crankshaft, CRANK-4340 FORGE 4.250 STROKE CCW
- Prop 65 Yes/No: Yes
- Prop 65 (C, R or CR): CR
- Prop 65 - Short Label: Prop 65 Warning Label.JPG
- Engine Type: ICE
- Make: Chevrolet
- Engine: Big Block
