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hp @ 6200 rpm

The Hot Cam Adds Heat to the LS3

Our engineers never stop tinkering. When they took a production LS3 6.2L (376 cubic inches) engine and swapped the stock camshaft for the racing-inspired LS Hot Cam (P/N 88958753), the result was a stunning 495 horsepower and 473 lb-ft of torque.

We wasted no time in adding that terrific combination – dubbed LS376/480 – to our crate engine portfolio. The key to the power boost is the Hot Cam’s 0.525-inch lift on both the intake and exhaust sides, along with 219-degree/228-degree duration specs. That’s less lift on the intake side than the stock LS3 cam, but considerably more duration, allowing the valves to stay open a little longer to draw in more air from the rectangular-port L92-style heads.

Use the LS376/480 with a controller kit (P/N 1925267), which includes a special pedal for use with the engine’s electronically controlled throttle.

LS376/480 DYNO

Click on the slider to see the torque and power ratings change with rpm.*

*Approximate values shown.


Part Number:
Engine Type:
LS-Series Gen IV Small-Block V-8
Displacement (cu. in.):
376 (6.2L)
Bore x Stroke (in.):
4.065 x 3.622 (103.25 x 92 mm)
Block (P/N 12623967):
Cast-aluminum with six-bolt, cross-bolted main caps
Crankshaft (P/N 12597569):
Nodular iron
Connecting Rods (P/N 12607475):
Powdered metal
Pistons (P/N 19207287):
Hypereutectic aluminum
Camshaft Type (P/N 88958753):
Hydraulic roller
Valve Lift (in.):
.525 intake / .525 exhaust
Camshaft Duration (@.050 in.):
219° intake / 228° exhaust


Cylinder Heads (P/N 12629063):
Aluminum L92-style port; “as cast” with 68-cc chambers
Valve Size (in.):
2.165 intake / 1.590 exhaust
Compression Ratio:
Rocker Arms (P/N 12569167 int):
Investment-cast, roller trunnion
Rocker Arms (P/N 10214664 exh):
Investment-cast, roller trunnion
Rocker Arm Ratio:
Recommended Fuel:
92 octane
Maximum Recommended rpm:
Reluctor Wheel:


Already own one, but lost some of the paperwork? We’ve got you covered with downloads and links for some of the more important documents below. You’ll find everything from the vital data about your engine’s capabilities to how to install it into your build, even all of the warranty information should you need to make a claim. And don’t forget, the best way we can make sure to get you the latest information on your specific part is to tell us which one you have by registering your engine. No matter what stage of your build you’re in — from shopping for the right part to that part having turned in a few miles — we have the information you need.

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    • Assembly does not include any electronics
    • LS376/480 Controller Kit, P/N 19258267, available for non-Corvette applications  
      Kit includes electronic throttle pedal, which is required for throttle input to the ECU
    • Includes Corvette wet sump oil pan
    • Intended for pre-1976 street vehicles or any off-road vehicle
    • Not intended for marine applications
    • Non-Corvette applications require flexplate (P/N 12637677)
    • Front-end accessory drive kits are available in two configurations
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Download a catalog for a full listing of components and related parts.

SuperMatic 4L70-E Four-Speed Automatic
Transmission • P/N 19299055

Transmission Controller • P/N 19257634

SuperMatic Torque Converter • P/N 19299803

Camaro 6-Speed Transmission • P/N 92246731

LS376/480 Controller Kit • P/N 19258267

Corvette Accessory Drive Kit • P/N 19155067

  • 1 Performance MSRP The Manufacturer's Suggested Retail Price excludes tax, shipping and installation.

Destination Freight Charges

To allow you to do an accurate price comparison with prices featured on other Internet sites, GM provides Internet pricing both with and without the Destination Freight Charge (see prices including Destination Freight Charge below). To get full pricing details, go to our Build Your Own section.