BluePrint Engines Engine Long Block

BluePrint Engines Long Block Crate Engines: Purpose-Built American Power

When it comes to engine long blocks, few names carry more weight in the performance aftermarket than BluePrint Engines. Founded in 1982 in Kearney, Nebraska, BluePrint has grown from a local race engine shop into one of the most respected crate engine manufacturers in the country, producing an impressive volume of engines daily out of their vertically integrated facility. Their long block assemblies represent the sweet spot for builders who want a complete, verified foundation without sacrificing the freedom to choose their own induction, ignition, and accessory systems.

What Sets a BluePrint Long Block Apart

A BluePrint long block arrives as a fully assembled engine core — block, rotating assembly, cylinder heads, camshaft, valve covers, oil pan, and timing cover all included — and it is ready for you to bolt on your intake manifold, headers, carburetor or fuel injection system, and transmission of choice. What makes BluePrint's long blocks genuinely distinctive is how they are built from the ground up.

• USA-Designed and Machined Blocks: Rather than sourcing worn or used cores, BluePrint engineers its own brand-new high-strength cast iron blocks. Modern casting processes, along with changes in design that give the blocks thicker cylinder walls, main bulkheads, and decks, along with improved cooling and oiling, make the blocks a better foundation for longevity in all applications.
• Precision Balancing: BluePrint uses an advanced computerized balancer to get rotating assemblies within two grams, ensuring silky smooth power over the entire RPM range.
• BluePrint Aluminum Cylinder Heads: Long block models across GM, Ford, and Chrysler platforms feature proprietary aluminum cylinder heads. The performance aluminum cylinder heads on these engines feature a .500 raised port vs OEM , improving airflow and power potential over factory castings.
• Hydraulic Roller Camshafts: Every long block in the lineup is fitted with a hydraulic roller cam, offering lower maintenance and better strength than a flat tappet cam.
• The BPE Dyno Promise: Every engine is dyno tested before it ships at no additional charge. A comprehensive, dyno-generated printout showing critical specs accompanies every delivered engine, so there is no guessing about real-world output.

Platform Coverage: GM, Ford, Chrysler, and LS

BluePrint's long block lineup covers an impressive range of classic and modern platforms. On the GM small-block side, popular options include stroker variants like the GM Small Block Compatible 400 c.i. engine rated at 500 horsepower and the GM Small Block Compatible 383 c.i. engine producing 436 horsepower. Ford fans can choose from the Ford Small Block Compatible 347 c.i. engine rated at 415 horsepower or the Ford Small Block Compatible 302 c.i. engine delivering 361 horsepower. Mopar builders are covered with offerings like the Chrysler Small Block Compatible 408 c.i. engine rated at 375 horsepower. BluePrint also offers marine-specific long blocks, such as a GM Marine Small Block Compatible 350 c.i. engine rated at 350 horsepower. For high-output LS enthusiasts, Pro Series long blocks like the GM LS Compatible 376 c.i. Pro Series engine rated at 530 horsepower offer a high-strength LSX-style block and BluePrint aluminum heads without the ECU, giving builders full control of their engine management.

Industry-Leading Warranty

BluePrint backs every long block with confidence. The standard warranty covers 30 months or 50,000 miles (parts and labor), with an extended warranty option stretching to 48 months or unlimited miles. The warranty is fully transferable, adding long-term value and reassurance whether the engine is installed by an individual or a professional installer. For builders who demand a proven, precision-built foundation without the time investment of sourcing individual components, a BluePrint Engines long block is hard to beat.