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Eagle Chevrolet 305/350 3.500in Stroke Forged 4340 Steel Lightweight Crankshaft

SKU: EAG4350350057LA

Crankshafts

EAG Crankshafts - 8 Cyl...

Eagle Chevrolet 305/350 3.500in Stroke Forged 4340 Steel Lightweight Crankshaft

SKU: EAG4350350057LA

Crankshafts

EAG Crankshafts - 8 Cyl...

A$2,347.75
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Description

Eagle lightweight forged 4340 steel Cranks feature a non-twist forging, lightweight counterweight design to reduce rotating weight, .125" fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface and micropolished. Intended for restricted-class competition use.

Product Overview

Eagle Crankshafts feature exceptional strength and quality at a reasonable price. Eagle cranks are forged in a non-twist forging and undergo a multi-stage heat treatment process as well as stress relieving, shot peening, and nitriding. They are magnafluxed and sonic tested to insure quality. Every journal is micropolished to a 3 or better R.A. On all journals, a 0.125” radius is used to increase strength, so chamfered bearings must be used. The perfect choice for engines up to 1500HP! *4340 Steel Crankshafts* Eagle forged 4340 steel crankshafts are forged from SAE 4340 steel, feature a non-twist forging, multi-stage heat treat process, stress relieving, shot-peening, and nitriding for superior strength and reliability in the most demanding applications. Each journal is micropolished to a 3 r.a. or better. A .125” radius is used to increase strength, so chamfered bearings must be used. All use a Ford rod journal width regardless of journal diameter. All are designed for internal balance. These are the perfect choice for applications up to 1500 hp. Eagle Forged 4340 Steel Crankshafts are also available in 'Lightweight' versions - Counterweights are knife-edged for reduced weight and less windage. Typical weight reduction is 5-6 lbs. *Cast Steel Crankshafts* Eagle cast steel crankshafts offer an excellent alternative to a factory cast crank. All radii are .092” so O.E. style bearings can be used. Target bobweight is +/- 2% GUARANTEED! Recommended for use up to 500hp. Designed for 28 in-oz. external balance.

Product Details

Balance Type:Internal
Bobweight:1820
Crankshaft Stroke:3.500 in
Description:Forged Steel Lightweight Crankshaft; Internal Balance
Engine Stroke:3.5
Flywheel Bolt Count:6
Flywheel Register Diameter:call
Intended Balance:internal
Main Journal Diameter:2.449
Main Journal:2.449 in
Material:Forged 4340 steel
Min. Rod Length:5.700"
Minimum Rod Length:5.700 in
Part Number:eag4350350057LA
Pilot Bore Diameter:call
Prop 65 (C, R or CR):C
Prop 65 - Long Label:This product contains nickel, which is known to the State of California to cause cancer
Prop 65 - Short Label:prop65_warning.jpg
Prop 65 Long:This product contains nickel, which is known to the State of California to cause cancer.
Prop 65 Warning Chemical Listing:Nickel
Prop 65 Yes/No:Yes
Rear Seal Diameter:call
Rod Journal Diameter:2.1
Rod Journal Width:1.900 in
Rod Journal:2.1 in.
Snout Diameter:1.245 in
Stroke:3.500"
Target Bobweight:1820g
Title:ESP 4340 CRANK CHEVY 350 4340 LW 3.500 in STRK

Application Summary

CHEVY 350

Part Type

Engine Crankshaft

Data: v4.2 - Upd: 2026-10-13 18:08:12

Specifications

Product Attributes - Brand
Eagle Specialty Products
Product Attributes - Manufacturer's Part Number
4350350057LA
Product Attributes - Part Type
Crankshafts
Product Attributes - Product Line
Eagle Lightweight 4340 Crankshafts
Product Attributes - UPC
793348008905
Product Attributes - Engine Stroke (in.)
3.500 in.
Product Attributes - Crankshaft Material
Forged 4340 steel
Product Attributes - Engine Balance
Internal
Product Attributes - Rear Main Seal Style
2-piece
Product Attributes - Lightened
Yes
Product Attributes - Requires Narrow Bearings
Yes
Product Attributes - Rod Bearings Included
No
Product Attributes - Main Bearings Included
No
Product Attributes - Rod Journal Diameter (in.)
2.100
Product Attributes - Main Journal Diameter (in.)
2.448 in.
Product Attributes - Balancer Bolt Thread Size
7/16 in.-20
Product Attributes - Crankshaft Snout Style
Standard
Product Attributes - Weight
49.000 lbs.
Product Attributes - Quantity
Sold individually.

Reference Information

Brand Name/s Eagle
StreetFX SKU eag4350350057LA
SFX Item ID 4053295
Supplier Item Code 4053295
Manufacturer SKU 4350350057LA
Manufacturer UPC 793348008905
Alternative References ESP-4350350057LA, 3.500in

Compatibility

CHEVY 350

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