Horsepower: 455 HP

Torque: 455 LB-FT

Fifth Generation Chevrolet Performance 

The LT1 6.2L opened the next chapter in the historic legacy of the Small-Block engine—and it gives your project vehicle a high-tech heart transplant with a balance of performance and efficiency. Our crate engine is rated at 455 horsepower and 455 lb.-ft. of torque.

The LT1 is architecturally similar to the LS family of Small-Block engines, but with a unique block casting, cylinder head design, oiling system and more. It also combines advanced technologies, including direct injection and continuously variable valve timing. 

INSTALLATION NOTES

• Engines shipped with high-pressure direct-injection fuel pump installed
• Assembly does not include any electronics
• Select the right controller kit for your LT1 Engine (see chart on page 115)
• Not intended for marine applications
• Front-End Accessory Drive system must be ordered separately (see page 106)
• Use P/N 19417547 Front-End Accessory Drive system without air conditioning and P/N 19369182 A/C add-on kit (see page 106)
• Can accommodate P/N 19420208 Hydraulic Power Steering Kit
• Includes 8-bolt flexplate
• Chevrolet Performance control kits do not use the Active Fuel Management components on this crate engine

TECH SPECS

• Part Numbers: 19431953
• Engine Type: Direct injection spark ignition Gen V Small-Block V-8
• Displacement (cu in): 376 (6.2L)
• Bore x Stroke (in): 4.065 x 3.622 (103.25 x 92mm)
• Block (P/N 12718007): Cast aluminum with 6-bolt nodular iron main bearing caps
• Crankshaft (P/N 12710954): Forged steel
• Connecting Rods (P/N 12669756): Forged powdered metal
• Pistons (P/N 12664891-L, 12664890-R): Hypereutectic aluminum
• Camshaft Type (P/N 12629512): Billet steel roller
• Valve Lift (in): 0.550 intake / 0.522 exhaust
• Camshaft Duration (@0.050 in): 200° intake / 206° exhaust
• Cylinder Heads (P/N 12699617): Aluminum, rectangular port D/I
• Valve Size (in): 2.130 intake / 1.590 exhaust
• Compression Ratio: 11.5:1
• Rocker Arms (P/N 12619829): Investment-cast, roller bearing trunnion
• Rocker Arm Ratio: 1.81:1
• Recommended Fuel: Premium pump
• Maximum Recommended rpm: 6,600
• Reluctor Wheel: 58x
• Balanced: Internal