When your LS build demands serious displacement, you need a block that’s engineered to go the distance—and this LS-compatible foundation is built to stretch all the way to an impressive 519 cubic inches. With reinforced architecture, thick cylinder walls, and precision-machined surfaces, it delivers the rigidity and reliability needed for high-horsepower, high-rpm combinations. Whether you’re assembling a torque-rich street monster, a boosted track bruiser, or a no-compromise stroker setup, this block gives you the headroom and confidence to push your LS platform far beyond stock limits. Big inches, big power, and rock-solid dependability start right here.
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The satisfaction of our customers is our highest priority at BluePrint Engines. We use quality components to balance your engine's rotating assembly within two grams of spec. We dyno test your crate engine and certify that it's ready to deliver horsepower and torque.
We give your BluePrint engine the industry's best-in-class warranty for 30-months / 50,000 miles — with the extra confidence only BluePrint can provide. Our warranty applies to individual or professional installations and is fully transferable.
For a detailed overview of our warranty, click here.
We make sure we hit our target horsepower and proper torque with every crate engine. We use an advanced computerized balancer to get our rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range. That's precisely why our engines sound and run better than our competitors.
A comprehensive, dyno-generated printout showing these critical specs will accompany your delivered engine. No more guessing or wondering what your installed engine's real-world peak horsepower and torque ratings actually are. Any doubters in the crowd? Simply flash 'em your dyno results!
This engine will be dyno tested before it ships to you at no additional charge (others charge $500)!
