Eagle Chevrolet Big Block 4.250in Stoke Internal Balance Forged 4140 Steel Crankshaft

SKU: EAG545442526385

Crankshafts

EAG Crankshafts - 8 Cyl

Eagle

Eagle Chevrolet Big Block 4.250in Stoke Internal Balance Forged 4140 Steel Crankshaft

SKU: EAG545442526385

Crankshafts

EAG Crankshafts - 8 Cyl

LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.

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Description

Eagle forged 4140 steel cranks feature a non-twist forging, .125" fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface and micropolished. Intended for competition use.

Product Overview

Product Details

Balance Type:	Internal
Crankshaft Stroke:	4.250 in
Description:	Eagle Chevrolet Big Block 4.250in Stoke Internal Balance Forged 4140 Steel Crankshaft
Flywheel Bolt Count:	6
Flywheel Register Diameter:	call
Intended Balance:	internal
Main Journal Diameter:	2.749
Main Journal:	2.749 in
Material:	Forged 4140 steel
Minimum Rod Length:	6.385 in
Part Number:	eag545442526385
Pilot Bore Diameter:	1.094 in
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 Width:	2.000 in
Rod Journal:	2.2 in.
Snout Diameter:	1.6 in.
Target Bobweight:	2350g
Title:	ESP 4140 CRANK CHEVY BB INT BALANCE

Application Summary

CHEVY BB

Part Type

Engine Crankshaft

Data: v4.2 - Upd: 2026-09-28 14:38:53

Specifications

Product Attributes - Brand: Eagle Specialty Products
Product Attributes - Manufacturer's Part Number: 545442526385
Product Attributes - Part Type: Crankshafts
Product Attributes - Product Line: Eagle Forged 4140 Steel Crankshafts
Product Attributes - UPC: 793348022499
Product Attributes - Engine Stroke (in.): 4.250 in.
Product Attributes - Crankshaft Material: Forged 4140 steel
Product Attributes - Engine Balance: Internal
Product Attributes - Rear Main Seal Style: 2-piece
Product Attributes - Lightened: No
Product Attributes - Requires Narrow Bearings: Yes
Product Attributes - Rod Bearings Included: No
Product Attributes - Main Bearings Included: No
Product Attributes - Rod Journal Diameter (in.): 2.200
Product Attributes - Main Journal Diameter (in.): 2.749 in.
Product Attributes - Crankshaft Snout Style: Standard
Product Attributes - Weight: 76.000 lbs.
Product Attributes - Quantity: Sold individually.
Product Attributes - Notes: This fits stroker applications only. It has a 4.250 in. stroke

Reference Information

Brand Name/s	Eagle
StreetFX SKU	eag545442526385
SFX Item ID	4053355
Supplier Item Code	4053355
Manufacturer SKU	545442526385
Manufacturer UPC	793348022499
Alternative References	ESP-545442526385, 4.250in