Spool Holden / GM - LS V8 Forged 4340 4" Stroker Crank
Spool GM LS V8 Billet 4340 Full Counterweight 4" Stroke Crankshaft
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Spool Full Billet 4340 Full Counterweight LS 4" Stroke Crankshaft
The Spool 4.000” stroke LS crankshaft is manufactured from 4340 billet steel, providing exceptional strength and durability for high-performance applications. Designed with full counterweights, this crankshaft improves rotational balance, reduces crankshaft flex, and enhances main bearing longevity under high RPM and extreme loads.
Key specifications:
- Material: 4340 Billet Steel
- Stroke: 4.000”
- Counterweight Design: Full counterweight for improved balance and reduced stress
- Main Journal Size: Standard LS
- Rod Journal Size: Standard LS
This crankshaft is precision-machined and finished to exact tolerances, making it suitable for high-horsepower street, drag racing, and endurance applications.
Note: Crank does not come with reluctor
Note: Clearancing of a stock cylinder block to make space for the counterweights is required.
| Product Name | Spool GM LS V8 Billet 4340 Full Counterweight 4" Stroke Crankshaft |
|---|---|
| Brands | Spool |
| Engine | GM / LS, LS 5.7L and 6.0L V8 |
| Make | Chevrolet, GM, Holden, LS Chev |
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
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Disclaimer:
Product images are for description purposes only. Actual product may vary.
Shipping calculations available at checkout.
If you are unsure, get in touch by emailing [email protected], messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
Do I need to balance the crankshaft?
Yes. It should be balanced together with your rods, pistons, rings and bearings to ensure smooth operation and bearing life.
What should I check when installing a performance crank?
Check journal sizes, thrust clearance, oil hole alignment, fillet radius and counterweight clearance to the block and pistons.
What is the stroke length of the Spool GM LS V8 Billet 4340 Crankshaft?
The Spool GM LS V8 Billet 4340 crankshaft has a stroke length of 4.000 inches, making it suitable for applications requiring increased displacement and torque.
What material is the Spool LS crankshaft made from?
This crankshaft is manufactured from 4340 billet steel, which provides exceptional strength and durability for high-performance applications.
Do I need to modify my engine block for this crankshaft?
Yes, clearancing of a stock cylinder block is required to accommodate the full counterweights of this crankshaft. Ensure proper measurements are taken during installation.
What types of applications is this crankshaft suitable for?
The Spool GM LS V8 Billet 4340 crankshaft is designed for high-horsepower street, drag racing, and endurance applications, providing reliability under extreme loads.
What are the journal sizes for this crankshaft?
The main and rod journal sizes are standard LS, allowing for compatibility with OEM components and aftermarket parts designed for the LS engine family.
