Login for Access to Member Pricing

Eagle

Eagle BBC 4340 Forged Crank - 4.250 Stroke

MPN: 445642526385 Catalog #: 001596676 Category: Crankshafts Check Vehicle Fitment

Product Details

Eagle forged 4340 steel center-counterweighted Cranks feature a non-twist forging, center counterweights for added stability at high RPM and high-power applications. 125 fillet radiuses for superior strength so chamfered / narrowed bearings required, nitrided surface and micropolished. Intended for the most demanding applications.

Forged 4340 Steel Crank - Chevrolet 454, 1PC REAR SEAL, 4.250 Stroke, CENTER COUNTERWEIGHTED, INTERNAL BALANCE.

Eagle BBC 4340 Forged Crank - 4.250 Stroke, Eagle BBC 4340 Forged Crank - 4.250 Stroke

Crankshaft - 4.250 in Stroke - Internal Balance - Forged Steel - 1-Piece Seal - Big Block Chevy - Each

Center Counterweights

Center Counterweights

Eagle BBC 4340 Forged Crank - 4.250 Stroke, Eagle BBC 4340 Forged Crank - 4.250 Stroke

Vehicle Fitment

Universal or product-specific fitment. Please review the product details and contact us if you need help confirming fitment before ordering.

Engine Compatibility

GM - BBCMatched variant: BBC

Big Block Chevy; 396/427/454/572

Fitment note: Engine compatibility is provided as a guide. Please verify all fitment details before ordering.

Product Specs

Brand
Eagle
Part Number
445642526385
Catalog Number
001596676
Product Line
Crankshafts
Category
Engines & Parts
Type
Crankshafts
UPC / Barcode
793348022109
Vendor Product Category
Engine Components
Vendor Product Subcategory
Crankshafts
Length
32.50 in
Width
9.00 in
Height
8.75 in
Weight
83.00 lb
Units Per SKU
1
Freight / LTL
No
Ship Alone
Yes
Air Restricted
No
Prop 65
Y
CARB Approved
Yes
Clearance Item
No

Shipping & Availability

Current status 11 Available - Ready to ship
Estimated timing Usually ships within 24hrs

This item is showing available inventory. Most in-stock performance parts ship quickly, but timing can vary by warehouse, vendor cut-off time, holidays, and carrier pickup.

PROP 65 WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Inventory shown: 11 available as of 6/3/2026.

Reviews & Questions

Real product feedback when available, plus quick ways to get fitment or product help.

Ask a Question
Need fitment help? Send us your year, make, model, engine, and the part number.
Already bought it? Reviews help other LMPerformance customers choose the right part.
Product question? We can help with specs, shipping, availability, and install details.

Other Popular Crankshafts

$1,140.55
^