Building an Extreme Boosted LS V8 Engine

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 – it all starts with the right foundation. At Spool Imports, we’ve got the parts you need to build an LS that can handle extreme boost and live to tell the tale.
The Heart: Full Counterweight Billet 4” Crankshafts
Forget cast or even forged crankshafts – for the ultimate build, you want a full counterweight billet crankshaft. Our LS Billet 4” cranks are machined from solid billet steel, not forged billets. Why does that matter? Billet cranks machined from a solid bar offer superior grain structure alignment and strength, with no compromises in forging die constraints. The result is maximum durability under extreme cylinder pressures.
Connecting Rods: X300 Conrods for Extreme Boost
When your boost levels are pushing the limits, you need rods that won’t flinch. Our X300 Conrods are engineered specifically for extreme boost applications. Made from ultra-high strength 300M material and fitted with massive 7/16” ARP2000 or optional L19 bolts, these rods can handle the punishment from your big turbo, blower, or nitrous setup.
Pistons: CP Bullet Power Adder Pistons
Your pistons are the frontline soldiers in your battle for horsepower. That’s why we recommend CP Bullet Power Adder pistons for all serious boosted builds. These are designed specifically for supercharged, turbocharged, and nitrous applications. With thicker crowns, reinforced pin bosses, and superior alloy selection, they’ll handle massive cylinder pressures without compromise.
Sealing It Up: Athena Cut Ring Head Gaskets
When you’re pushing extreme boost, a standard MLS gasket just won’t cut it. Athena Cut Ring head gaskets provide the ultimate combustion seal, with stainless steel rings biting into the head to keep your boost where it belongs – in the cylinder. Combined with quality ARP head studs, these gaskets are your insurance policy against head lift and blown gaskets.
Genuine GM Parts for the Finishing Touches
No LS build is complete without the genuine GM parts to ensure everything goes together seamlessly. From bearings and seals to timing sets and lifters, we stock a full range of genuine GM components to complete your build the right way.
Ready to Build Your Extreme LS?
Whether you’re putting together a street weapon, drag monster, or a record-chasing dyno queen, Spool Imports has the parts and expertise to make it happen. Browse our full LS range today or contact our team to spec out your next extreme boosted LS V8 build.