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Home Engines Crate Engines Chevrolet Performance LT4 6.2L Supercharged Wet Sump Crate Engines 19431955
Chevrolet Performance SP383 C.I.D EFI Long Block Crate Engines 19433045Crate Engine
Chevrolet Performance SP383 C.I.D EFI Long Block Crate Engines 19433045Crate Engine $8,644.00
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Chevrolet Performance 6.2L 376 C.I.D. 515 HP Long Block Crate Engines 19432420
Chevrolet Performance 6.2L 376 C.I.D. 515 HP Long Block Crate Engines 19432420 $4,695.00

Chevrolet Performance LT4 6.2L Supercharged Wet Sump Crate Engines 19431955

$12,941.00

Crate Engine, LT4 Supercharged, 650 hp/ 650 lbs/ft. Torque, Wet Sump, Aluminum Block/Heads, Chevy, Each

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Category: Crate Engines
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Description

Overview

Brand: Chevrolet Performance
Manufacturer’s Part Number: 19431955
Part Type: Crate Engines
Product Line: Chevrolet Performance LT4 6.2L Supercharged Wet Sump Crate Engines
Summit Racing Part Number: NAL-19431955
Crate Engine Family: Chevy LT Gen V
Actual Engine Displacement: 6.2L/376
Crate Engine Cylinder Head Material: Aluminum
Engine Block Material: Aluminum
Advertised Compression Ratio: 10.0:1
Assembled: Yes
Engine Balance: Internal
Cam Style: Hydraulic roller, OE roller
Rear Main Seal Style: 1-piece
Intake Manifold Included: Yes
Intake Manifold Style: Fuel Injection
Cylinder Heads Included: Yes
Carburetor Included: No
Throttle Body Included: Yes
Distributor Included: No
Oil Pan Included: Yes
Valve Covers Included: Yes
Timing Cover Included: Yes
Water Pump Included: Yes
Harmonic Balancer Included: Yes
Flexplate Included: Yes
Flywheel Included: No
Air Cleaner Included: No
Spark Plugs Included: Yes
Spark Plug Wires Included: Yes
Computer Included: No
Wiring Harness Included: No
Supercharger Included: Yes
Supercharger Model: Eaton TVS 1740
Remanufactured: No
Quantity: Sold individually.
Notes: Requires premium grade fuel.

Chevrolet Performance LT4 6.2L Supercharged Wet Sump Crate Engines

Chevrolet Performance LT4 6.2L supercharged wet sump crate engines are engineered for supremacy. These powerhouses are the heart of the Corvette Z06 and feature 1.7L Eaton R1740 TVS superchargers spinning up to 20,000 rpm–enough to generate more than 9 lbs. of boost, along with big horsepower and torque. These LT4 long blocks have several unique features designed to support their higher output and the greater cylinder pressures created by forced induction. They include Rotocast A356 T-6 aluminum cylinder heads that are stronger and handle heat better than conventional castings, lightweight titanium intake valves, and stronger forged aluminum pistons.

Technical specs:

* Engine type: Gen V small block V8
* Displacement: 376 c.i.d.
* Bore x stroke: 4.065 in. x 3.622 in.
* Block: Cast aluminum with 6-bolt, cross-bolted main caps
* Crankshaft: Forged steel
* Connecting rods: Forged powdered metal steel
* Pistons: Forged aluminum
* Compression ratio: 10.0:1
* Camshaft type: Hydraulic roller
* Valve lift: .492 in. intake/.551 in. exhaust
* Camshaft duration (at .050 in.): 189 degrees intake/223 degrees exhaust
* Cylinder heads: A356 T-6 Rotocast aluminum, as-cast with 65.5cc chambers
* Valve size: 2.130 in. intake/1.590 in. exhaust
* Recommended fuel: Premium pump
* Maximum recommended rpm: 6,600
* Please note: Assembly does not include any electronics

Shipping & Delivery
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Effective Date: August 9, 2025

At X Factors Motorsports, we are committed to delivering your order quickly, securely, and affordably.


1. Processing Time

  • Orders are typically processed within 1–2 business days after payment is confirmed.

  • Orders placed on weekends or holidays will be processed on the next business day.


2. Delivery Times

  • Domestic Shipping (United States): Delivery takes 5–7 business days from the date of shipment.

  • International Shipping: Delivery times vary by destination and may take 7–21 business days depending on customs processing and local delivery services.


3. Shipping Rates

  • United States: Free standard shipping on all orders.

  • International: Shipping costs are calculated at checkout based on the delivery address, package weight, and destination country.


4. Carriers Used

We ship orders using trusted carriers such as UPS, FedEx, USPS, and DHL to ensure reliable delivery. Tracking numbers are provided for all shipments.

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    At X Factors Motorsports, we specialize in high-performance engines, outboards, and premium automotive equipment. With expert support, fast shipping, and trusted brands, we help builders, racers, and enthusiasts power their passion — one project at a time.

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