Chevrolet Performance 19433750 GM Gen V L8T Long Block Specs:

• Displacement: 400 cu in (6.6L)
• Bore x Stroke: 4.060 x 3.860 in (103.25 mm x 98 mm)
• Block (P/N 19420904): Cast iron with 6-bolt nodular main bearing caps
• Crankshaft (P/N 12708884): Forged steel
• Connecting Rods (P/N 12675746): Forged powder-metal
• Pistons (P/N 12699527-R, 12699529-L): Hypereutectic aluminum
• Camshaft Type (P/N 12672469): Billet steel hydraulic roller
• Valve Lift: 0.500 in. intake / 0.492 in. exhaust
• Camshaft Duration (@ 0.050 in.): 193º intake / 199º exhaust
• Cylinder Heads (P/N 12703610): Aluminum rectangular port D/I with 59.02cc chambers
• Valve Size: 2.130 in. hollow intake / 1.590 in. inconel exhaust
• Compression Ratio: 10.8:1 (nominal)
• Rocker Arms (P/N 12619829): Investment cast roller trunnion
• Rocker Arm Ratio: 1.8:1
• Intake Manifold (P/N 12639087): Composite
• Fuel Delivery: High-pressure direct injection (2,175 psi / 150 bar)
• Recommended Fuel: 87 octane
• Ignition System: Coil-on-plug
• Maximum Recommended RPM: 5600 rpm
• Reluctor Wheel: 58X
• Balanced: Internal

Chevrolet Performance 19433750 GM Gen V L8T Long Block Features:

• 401 HP and 464 lb.-ft. of torque from Chevy’s HD truck engine platform
• Largest-displacement LT-family engine delivers strong low-rpm torque
• Direct injection supports precise fuel control and 10.8:1 compression
• Forged steel crankshaft and high-strength internals for heavy-duty use
• Oil-spray piston cooling and long-skirt cast iron block with cross-bolted mains
• Includes direct injection cylinder heads and coil-on-plug ignition system
• Comes with oil pan and dipstick for easy integration
• Does not include intake manifold, throttle body, fuel pump, or injectors

Chevrolet Performance 19433750 GM Gen V L8T Long Block Notes:

• Engine is shipped with high-pressure direct injection fuel pump installed
• Front End Accessory Drive system sold separately and includes hydraulic power steering
• Pulley-mounted cooling fan not recommended for this engine
• Use FEAD P/N 19433745 (sold separately) for A/C applications, P/N 19433746 (sold separately) for non-A/C setups
• Includes 8-bolt flexplate for automatic transmission compatibility
• Use with Engine Control Kit P/N 19435606 (sold separately) and 6L80 transmission only
• Controller kit includes programmed ECM, harness, pedal, O2 sensors, MAF, FLPS, and FPPM

Emissions Note:

This part is only legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles or on vehicles used solely for the purposes of closed competition racing.

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