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Manley Performance

Manley Chevrolet Big Block 4340 Non-Twist Forgings 4.250in Stroke Crankshaft

$1,212.29

$1,115.99
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Use metafields to highlight unique selling points

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Description

Our "Pro Series" 4340 alloy steel crankshafts are available with many value packed and high-performance enhancing features for a wide range of domestic engine applications.

  • Rigorous Quality Assurance: Each crankshaft undergoes stress relief, shot peening, and 100% magnafluxing to meet our stringent quality standards.
  • Lightweight Design, 4340 Non-Twist Forging: Our crankshafts feature a lightweight 4340 non-twist forging, ensuring durability and performance.
  • Enhanced Strength: A multi-step heat treatment process and nitriding enhance the crankshafts' strength and longevity.
  • Micro-Polished Journals: Large radius journals are micro-polished to reduce friction and enhance performance.

FAQ

How long does shipping take?


Most orders ship within 1–2 business days. Engines and oversized items may require additional handling time. You’ll receive tracking as soon as your order leaves our warehouse.

What happens if an item is backordered?


If a product is backordered, we’ll notify you right away with an estimated restock date. You can choose to wait, swap, or cancel.

How do I track my order?


Once your order ships, you’ll receive an email with tracking information. You can also log into your account anytime to check order status.


We’ve been in your shoes. From first bolt-ons to full custom builds, our crew can guide you the right way.


Every product we sell is chosen with one goal in mind: helping you build faster, stronger, and more reliable machines.


We team up with the best brands so you can build with confidence.

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