BluePrint Engines Chevy LS 376 C.I.D. 549 HP EFI LS3-Style Long Block Crate Engines PSLS3760EFI

BluePrint Engines PSLS3760EFI – 376 ci / 6.2L 549 HP EFI LS3-Style Long Block Crate Engine

Buy the BluePrint Engines PSLS3760EFI 549 HP LS3 crate engine – the highest-output dressed long block in the BluePrint Pro Series lineup. This dyno-proven 376 ci EFI LS3 delivers 549 horsepower and 469 ft-lbs of torque straight out of the box, built on a brand-new GM aluminum block and ready for your next street, strip, or swap project.

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Alt text: BluePrint Engines PSLS3760EFI 549 HP LS3 crate engine – new aluminum block with EFI intake

Every unit is hand-assembled in the USA, internally balanced, and ships with a certified dyno sheet. Backed by BluePrint’s industry-leading 30-month / 50,000-mile warranty and available exclusively through Hammer Engines worldwide.

Key Specifications Table

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Alt text: BluePrint PSLS3760EFI dyno tested 549 HP and 469 ft-lbs torque graph

What’s Included – Dressed Long Block (EFI Ready)

Complete long block + full front dress kit and fuel-injection hardware. Excludes: Standalone ECU/harness (Holley, PSI, or GM), flexplate/flywheel, and air filter.

Why Builders Choose the BluePrint Engines PSLS3760EFI

BluePrint Engines has earned its reputation as one of America’s most trusted crate engine builders (see the full story on the official BluePrint Engines website). Every PSLS3760EFI is rigorously dyno-tested before leaving the factory, and at Hammer Engines we’ve supported hundreds of these exact 549 HP LS3 long blocks in real-world installations. Customers consistently report bulletproof reliability, effortless 500+ HP street manners, and massive headroom for future boost — exactly why this engine appears so often in our LS engines for sale category.

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Alt text: New GM 6.2L aluminum block with BluePrint LS3-style heads on the PSLS3760EFI

Perfect Applications

This 376 ci LS3 crate engine shines in the most popular swaps and builds:

• Fox-body Mustang & classic Camaro LS swaps (step-by-step details in our Fox-body Mustang LS swap guide)
• C10 squarebody trucks & modern Silverado upgrades (see real builds in our C10 LS swap guide)
• Pro-touring restomods needing 500+ HP with modern EFI
• Jeep Wrangler off-road builds
• Street/strip drag cars (700+ HP potential with bolt-on boost)
• Custom hot rods and pro-street projects

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Alt text: BluePrint Engines 376 ci LS3 crate engine installed in classic Fox-body Mustang

Frequently Asked Questions (FAQ)

Is this a complete turnkey engine? No – it’s a fully dressed EFI long block. Add your ECU/harness of choice.

Best ECU for this engine? Holley Terminator X or PSI – we offer complete plug-and-play kits.

Can it handle boost? Yes – forged rods and 10.7:1 compression safely support 8–12 psi (700+ HP).

Shipping & Warranty? Worldwide door-to-door from Hammer Engines with full manufacturer warranty.

Related Blog Topics for Topical Authority (Naturally Link These)

Use these as natural internal links throughout the page and site:

1. BluePrint Engines PSLS3760EFI Review: 549 HP LS3 Long Block Real-World Test
2. How to Install the BluePrint 376 ci EFI LS3 in a Fox-Body Mustang
3. 549 HP BluePrint LS3 vs Stock GM LS3 – Worth the Upgrade?
4. Best ECU Options for BluePrint EFI LS Engines
5. Boosting the PSLS3760EFI: Turbo & Supercharger Safe Power Levels
6. LS Swap Cost: BluePrint 376 ci vs Custom Build Breakdown
7. LS Engine Break-In Guide for 200,000+ Mile Reliability

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Alt text: Fully dressed BluePrint Engines PSLS3760EFI with 87mm throttle body, injectors and coil packs

Overview