Eagle 102813750 Cast Steel Crankshaft 3.750" Stroke Ford 4.6L Modular

Regular price: $415.95
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Sale price: $415.95

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In Stock: 18

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Product Specification:

SKU:EAG102813750

MPN: 102813750

UPC: 793348000107

Weight: 52.5 lb

Inventory: 18

Type: Crankshafts

Vehicle Fitment

Ford 4.6 L Modular V8 (2-Valve, 3-Valve, 4-Valve) with compatible block and internal-balance setup

Features

3.750" stroke design to convert 4.6 L into ~5.0 L displacement
Cast steel construction offers stronger alternative to cast iron cranks
Internal balance configuration for direct-flywheel compatibility on 8-bolt flange systems
Maintains standard journal radii, allowing use of OE-style bearings
Precision-machined for consistent quality and dependable street/tow use
Supports pump-gas, naturally aspirated, and moderate performance builds
Designed by Eagle to their in-house specifications for reliability and value
Good choice for budget-focused build where full forged crank is not required

Specifications

Part Number: 102813750
Stroke: 3.750"
Main journal size: 2.657" (approx) per spec listing
Rod journal size: 1.889" (approx) per spec listing
Balance type: Internal balance (8-bolt flywheel flange)
Material: Cast steel (vs cast iron) for improved fatigue strength
Intended for Ford 4.6 L Modular family engines

Included Components

1x Eagle Cast Steel Crankshaft (102813750)

Product Description

The Eagle 102813750 is a cost-effective performance crankshaft upgrade designed for Ford's 4.6 L Modular V8 family. With its 3.750" stroke, this crank enables displacement increases (to approximately 5.0 L) when matched with suitable rods and pistons. Constructed from cast steel, it offers greater durability than standard cast iron cranks, making it a strong choice for street, tow, or modest performance builds.

Internally balanced and designed for use with the OE or aftermarket 8-bolt flywheel flange, this crankshaft integrates into many Modular-block setups with minimal changes. While not forged, the cast steel construction is backed by Eagle's manufacturing standards and is ideal for builds aiming for reliability without the expense of fully forged rotating assemblies.

Before installation, compensation for rod length, piston compression height, deck-clearance, and balancing is required. Because this crank uses a 1.889" rod journal specification, you must select proper rods compatible with that size. Full balancing and rotating assembly check is recommended to ensure long-term service life and performance.