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SKU: 103503480 / UPC: 793348000602
Eagle Chevrolet 305/350 Small Block Cast Crankshaft
Engineered for pump-gas, naturally-aspirated, non-competition road cars, this crankshaft delivers unmatched durability and precision, making it the best choice for enthusiasts and builders seeking a superior stock replacement or performance upgrade. Backed by Eagle Specialty Products’ legacy of innovation since 1992, this crankshaft outperforms all competitors, offering exceptional quality at a price that outshines regrinding old cranks. Don’t settle for less—choose the industry’s top-rated crankshaft for your Chevy build and experience the difference in power and longevity.
Why Eagle?
Performance: Designed for small block Chevy 305/350 engines, the 3.48-inch stroke and internal balance ensure smooth operation and optimal power delivery, rated up to 500 horsepower for street applications.
Durability: Crafted from high-quality cast mild steel, this crankshaft undergoes magnafluxing, sonic testing, and x-ray inspection to guarantee reliability under high-performance conditions.
Precision Engineering: Features .092-inch fillet radii on rod and main journals for increased strength while maintaining compatibility with OEM-style bearings, ensuring a perfect fit and hassle-free installation.
Cost-Effective: Outperforms re-machined factory cranks at a comparable cost, delivering tighter tolerances and better metallurgy for enhanced longevity and performance.
Included:
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Eagle 103503480 Cast Steel Crankshaft:
- Stroke: 3.480 inches
- Rear Main Seal: 2-piece (pre-1986 design)
- Balance: Internal
- Rod Journal Diameter: 2.100 inches
- Main Journal Diameter: 2.449 inches (350 mains)
- Crankshaft Snout Size: 1.245 inches
- Weight: Approximately 56 lbs
- Material: Cast mild steel, non-nitrided
- No lightening holes in rod throws
- Provision for pilot bearing included
- Uses two short keys for timing gear installation
- No Bearings Included: Compatible with standard 350 engine bearings (e.g., Clevite MAHLE MS909P Main Bearing Set or CB663P Connecting Rod Bearing).
- Manufacturer’s Warranty: Contact Eagle Specialty Products customer service for warranty details.
Note: Crankshaft must be balanced to match your specific rods and pistons for optimal performance. Recommended connecting rods: Eagle ESP H-Beam (CRS6200B3D) or SIR I-Beam (SIR6200B3D), 5.7 inches or longer.
Fitment
The Eagle 103503480 crankshaft is compatible with Chevrolet small block 305 (5.0L) and 350 (5.7L) engines with a 2-piece rear main seal, commonly found in pre-1986 models.
- Make: Chevrolet, GMC, Pontiac, Oldsmobile, Buick, Cadillac
- Engines: Small Block V8 305 (5.0L), 350 (5.7L)
- Years: 1968–1985 (vehicles with 2-piece rear main seal)
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Models (including but not limited to):
-
Chevrolet:
- Camaro (1968–1985)
- Corvette (1968–1985)
- Chevelle (1968–1973)
- Nova (1968–1979)
- Impala/Caprice (1968–1985)
- Malibu (1973–1983)
- Monte Carlo (1970–1985)
- El Camino (1968–1985)
- C/K Pickup Trucks (1968–1985)
-
GMC:
- C/K Pickup Trucks (1968–1985)
- Sprint (1971–1977)
-
Pontiac:
- Firebird (1968–1985)
- GTO (1968–1974)
- LeMans (1968–1981)
-
Oldsmobile:
- Cutlass (1968–1985)
- Omega (1973–1979)
-
Buick:
- Regal (1973–1985)
- Skylark (1968–1979)
-
Cadillac:
- Seville (1976–1985, select models with 350 V8)
-
Chevrolet:
Note: Not compatible with 1986 and later engines using a 1-piece rear main seal (3.00-inch bolt circle flywheel flange). Verify your engine’s rear main seal design before purchase.
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