Discontinued product. Contact dealer for availability.

LT1

PARTS INTENDED FOR COMPETITION USE ONLY.
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PARTS INTENDED FOR COMPETITION USE ONLY.
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PROPOSITION 65 WARNING.
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PROPOSITION 65 WARNING.
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LT1, Next-Gen Small-Block 

Introduced on the seventh-generation Corvette Stingray, the LT1 6.2L opened the next chapter in the long, historic legacy of the Small-Block engine.

PART NO. 19329997

WhyBuy

460 HP @6000 RPM

WhyBuy

465 LB/FT @4600 RPM

Advanced Combustion

The LT1 is architecturally similar to the LS family of engines, but with a unique block casting, cylinder head design, oiling system and more. The LT1 is offered with a wet-sump or dry-sump oiling system.

Connect & Cruise Powertrain System

Connect & Cruise Crate Powertrain Systems provide factory-matched engine-and-transmission combinations that include specially calibrated controllers and wire harnesses designed for retrofit installations in older vehicles.  

Project Cars

These passion projects were brought to life with a convenient Connect & Cruise Powertrain System.

1971 CORVETTE 

The legend continues. 

This 1971 Corvette proves it’s possible to improve on perfection with the 460-hp LT1 crate engine and T56 Super Magnum 6-speed transmission.

Installation Guides

Find everything from vital data about your engine’s capabilities to how to install it into your build.

Installation Guides

Find everything from vital data about your engine’s capabilities to how to install it into your build.

LT1 Tech Specs

  • Part Number: 19329997
  • 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 12619171): Cast aluminum with 6-bolt nodular iron main bearing caps
  • Crankshaft: Forged steel
  • Connecting Rods: Forged powdered metal
  • Pistons: Hypereutectic Aluminum
  • Camshaft Type (P/N 12629512): Billet steel roller
  • Valve Lift (in.): .561 intake / .531 exhaust
  • Camshaft Duration (@0.050 in.): 242° intake / 244° exhaust
  • Cylinder Heads (P/N 12620544): Aluminum, rectangular port D/I
  • Valve Size (in.): 2.130 intake / 1.590 exhaust
  • Compression Ratio: 11.5:1
  • Rocker Arms (P/N 12619829 int): Investment-cast, roller trunnion
  • Rocker Arms (P/N 12619829 exh): Investment-cast, roller trunnion
  • Rocker Arm Ratio: 1.81:1
  • Recommended Fuel: Premium pump
  • Maximum Recommended rpm: 6600
  • Reluctor Wheel: 58X
  • Balanced: Internal

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.