Chevrolet Performance 19433750 6.6L L8T 401 HP Long Block

Chevrolet Performance 19433750 6.6L L8T 401 HP Long Block Performance

This Chevrolet Performance 19433750 L8T long block provides 401 horsepower and 464 lb.-ft. of torque within a Gen V Small Block architecture. Engineered with a cast iron deep-skirt block and oil spray cooling jets, this 6.6L unit ensures maximum mechanical integrity and thermal management. The forged steel crankshaft and hypereutectic aluminum pistons are designed for high volumetric efficiency and professional-grade durability.

The L8T long block architecture fits modern heavy-duty truck platforms and serves as a premium swap candidate for 1967–1972 Chevrolet Blazers and C10 restorations. It integrates seamlessly into custom pro-touring builds requiring an iron-block LS/LT hybrid footprint for forced induction or heavy towing. This configuration ensures precise powertrain integration while allowing builders to utilize custom induction and accessory drive systems for specialized vehicle applications.

Key Features of Chevrolet Performance 19433750

• 6.6L Displacement delivers high-torque output for heavy-duty builds
• Oil Spray Cooling Jets maintain stable piston temperatures under load
• Forged Steel Crankshaft provides a rugged rotating assembly foundation
• Cast Aluminum Rectangular Port Heads optimize intake charge velocity
• 10.8:1 Compression Ratio supports efficient high-pressure direct injection
• Billet Steel Camshaft ensures precise valvetrain timing and longevity
• 8-Bolt Flexplate Design provides secure torque transfer to transmission
• Forged Powdered Metal Connecting Rods enhance internal structural strength
• Deep Skirt Block Design improves overall engine case rigidity
• Gen V V8 Architecture offers modern performance in a durable package

Chevrolet Performance 19433750 Included With:

• Long Block Assembly
• Flexplate

Upgrade your project with professional-grade reliability and peace of mind. This assembly includes a 2-year or 24,000-mile limited warranty, ensuring long-term protection for your investment. Explore our full range of high-performance crate engines to find the perfect match. Experience superior powertrain integration precision with this Chevrolet Performance assembly, designed for premium performance and backed by industry-standard heritage.