Chevrolet Performance LT4 6.2L 650 HP / 650 LB-FT - Supercharged Crate Engine

Supercharged Power from the C7 Corvette Z06!

At the time of its release, the supercharged LT4 6.2L SC was the most powerful engine ever offered in a regular production Chevrolet, and was the heart of the Camaro ZL1. It features a compact, efficient 1.7L Eaton R1740 TVS supercharger, which spins at up to 20,000 rpm. That’s enough to generate more than 9 pounds of boost and help produce 650 horsepower and 650 lb.-ft. of torque.

The LT4 is based on the same Gen V Small-Block architecture as the LT1 engine, with several unique features designed to support its higher output and the greater cylinder pressures created by forced induction. They include Rotocast A356T6 aluminum cylinder heads, which are stronger and handle heat better than conventional castings, lightweight titanium intake valves and stronger forged aluminum pistons.

Specifications:

• Engine Type: Gen V Small-Block V-8
• Displacement: 376 cu in (6.2L)
• Bore x Stroke: 4.065 x 3.622 (103.25 x 92mm)
• Power: 650 HP and 650 lb-ft of torque
• Compression Ratio: 10:1
• Maximum RPM: 6,600

Supercharger System:

• 1.7L Eaton R1740 TVS supercharger spinning up to 20,000 RPM
• Generates more than 9 lbs of boost
• More efficient and compact design compared to previous generation superchargers

Engine Construction:

• Cast aluminium block with 6-bolt, cross-bolted main caps
• Forged steel crankshaft
• Forged powdered-metal steel connecting rods
• Stronger forged aluminium pistons designed for forced induction
• Rotocast A356T6 aluminium cylinder heads - stronger and better heat management than conventional castings
• Lightweight titanium intake valves

Advanced Features:

• Direct Injection and continuously Variable Valve Timing
• Active Fuel Management capability
• Hydraulic roller camshaft
• Valve lift: 0.492 intake / 0.551 exhaust

Installation Requirements:

• Assembly does not include electronics - requires LT4 Engine Controller Kit (P/N 19433248 or 19433249)
• Includes 8-bolt flexplate
• Requires premium grade fuel
• Intended for pre-1976 street vehicles or off-road vehicles
• Not intended for marine applications

Notes: Includes direct injection, VVT, and Active Fuel Management. Does not include any electronics. Features 0.492 in. intake lift, 0.551 in. exhaust lift, 189 degree intake, and 223 degree duration. Premium fuel recommended.