CRANKSHAFT-4340 BBC 454 4.500

Name: CRANKSHAFT-4340 BBC 454 4.500
Brand: Manley Performance
SKU: M004 190520
Price: 1444.75 USD
Availability: InStock

$1,444.75

SKU: M004 190520

Special Order

Ships in 4–6 weeks

Free Shipping

Non-Returnable Item

DIY PRO SHOP

Advanced — 4+ hours

Description

The Manley Pro Series 4340 forged steel crankshaft (MPN 190520) is designed for Big Block Chevrolet (BBC) 454 engines, featuring a 4.500" stroke and 4340 non-twist forged steel construction for high performance and durability.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	Manley Performance
Part Number	M004 190520

Videos

Parts to stroke a 454 into 505

ATI Super Damper Install...#14 Chevy 454 Big Block Performance Build...

Checking oil clearances & installing steel crank shaft...#4 Chevy 454 Big Block Performance Build..

How to Build a Chevrolet 454 Big Block Part 5: Replacing the Crankshaft

620 HP 454 Big Block Chevy Engine Build Part 4 GM Crankshaft Prep, Runout and Stroke Check

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy