Engine - GM (19431953)

Genuine OEM GM® Parts & Accessories - 19431953

Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts
  • GM
  • 19431953
Manufacturer Warranty Minimum of 12 months
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Discontinued Product

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Details

  • Brand:

    Buick, GMC, Cadillac, Hummer, Saturn, Oldsmobile, Pontiac, Chevrolet Parts

  • SKU:

    19431953

  • Description:

    THE NEXT GENERATION IS HERE!
    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 - and gives your project vehicle a high-tech heart transplant with an unprecedented balance of performance and efficiency!
    The LT1 is architecturally similar to the LS family of engines, but with a unique block casting, cylinder head design, oiling system and more. It also combines advanced technologies including direct injection, Active Fuel Management (cylinder deactivation) and continuously variable valve timing to support an advanced combustion system.
    Our LT1 6.2L crate engine is rated at 460 horsepower and 465 lb.-ft. of torque; and it is offered with a wet-sump or drysump oiling system. A controller specially designed for retro-fit application using an automatic transmission is available.
    NOTE: Chevrolet Performance control kits do not utilize the AFM components on this crate engine
    TECH SPECS
    Part Numbers: 19355405
    Engine Type: Direct Injection spark ignition Gen V Small-Block V-8
    Displacement (cu in): 376 cu in 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): 0.561 intake / 0.531 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: 6,600
    Reluctor Wheel: 58x
    Balanced: Internal
    INSTALLATION NOTES

    • Engines shipped with high-pressure direct-injection fuel pump installed
    • Assembly does not include any electronics
    • Use LT1 Controller Kit, P/N 19303137 for engine operation. Kit includes electronic throttle pedal, which is required for throttle input to the ECU
    • Intended for pre-1976 street vehicles, or any off-road vehicle
    • Not intended for marine applications
    • Front-End Accessory Drive Kit, P/N 19329990, can be ordered separately
    • For LT1 P/N 19355405 use P/N 12678595 FEAD w/o air and P/N 12678596 A/C add-on kit
    • 8-bolt crankshaft flange
    • Shipped with 14" flexplate

Vehicle Fitment

No application/vehicle fitment information available for this product
Vehicle Fitment
Year Make Model Body & Trim Engine & Transmission
( more fitments)
No fitment data available

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PRODUCTS ON OUR SITE should be viewed as a Catalog of Genuine GM OEM Auto Parts & Accessories. They are subject to availability and may be discontinued or have a superseded number without us having been updated by the manufacturer.

Some Parts are “On-Hand” or “in-stock” and come from our physical location. Others are sourced from our direct GM suppliers. On occasion, some items become unavailable or are understocked without our knowledge. GM provides us with updates continually, but this is not always reflected immediately on our store site.

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Product descriptions may say “Left” or “Right”.  Left=Driver’s Side | Right=Passenger Side

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  • If a part is not in stock but can be ordered from the manufacturer, it typically takes 2-3 days to arrive to us from area GM Hubs before we can deliver to you. 
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  • Shipping Carrier substitutions may be made at our determination in an attempt to reduce shipping cost to the customer.
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  • In the event that a part has been placed on backorder or discontinued, we will do our best to try and find one for you as quickly as possible or refund your purchase for that item.
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