
Spool GM LS V8 4. Stroker Kit with Full Billet, Full Counterweight Crankshaft
Holden / GM LS1,LS2 LS3 - 4.00" Extreme Boost Engine Kit - 2,000hp+
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Extreme Boosted 2,000hp+ LS Engine Rotating Assembly Kit
Take your LS build to the next level with our Extreme Boosted LS Engine Kit – engineered for serious horsepower and maximum reliability under extreme boost pressures.
This premium kit includes:
✅ Full Counterweight Billet 4” Crankshaft
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Machined from solid billet steel (not forged) for unmatched grain alignment, strength, and durability
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Designed to handle extreme cylinder pressures found in big boost applications
✅ X300 Conrods (Set of 8)
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Made from ultra-high strength 300M material
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Engineered for extreme boost builds with massive 7/16” ARP2000 bolts standard (optional upgrade to ARP L19 available)
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Perfect for turbo, supercharged, and nitrous LS engines pushing beyond 1,500hp
✅ CP Bullet Power Adder Pistons (Set of 8)
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Designed specifically for boosted applications including turbocharged, supercharged, and nitrous engines
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Features thicker crowns, reinforced pin bosses, and superior alloy construction for maximum reliability
✅ Athena Cut Ring Head Gaskets (Pair)
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The ultimate combustion sealing solution for extreme boost
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Stainless steel rings bite into the head for a secure seal, preventing head lift and blown gaskets under extreme pressure
Why Choose This Kit?
If you’re building a street monster, drag car, or record-chasing dyno engine, this kit provides the foundation you need to make big power safely and reliably. All components are carefully selected to work together for maximum performance and durability.
Product Name | Holden / GM LS1,LS2 LS3 - 4.00" Extreme Boost Engine Kit - 2,000hp+ |
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Brands | Spool |
Engine | GM / LS |
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.
You can calculate shipping rates inside the shopping cart. After adding all the products you would like, navigate to the cart and click the ESTIMATE SHIPPING & TAX link. .
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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 sales@spoolimports.com, messaging us on Facebook, or phoning us at +61 7 5645 1333 (8am to 2pm AET).
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Building an Extreme Boosted LS V8 Engine If you’re chasing serious horsepower from your LS build – think 1,500hp, 2,000hp, or even more ...