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6 Select
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hp @6100 rpm

More than 550 supercharged horsepower with exceptional refinement

The Cadillac CTS-V’s 6.2L supercharged LSA engine delivers 556 horsepower with refinement that is rare in the world of high performance. It is smooth, quiet, and well-balanced — all while delivering breathtaking power.

A unique aluminum cylinder block casting houses a forged-steel crankshaft and super-tough reciprocating parts, integrated piston-cooling oil jets, and high-flow cylinder heads that support the airflow enabled by a 1.9L, sixth-generation supercharger with four-lobe, high-twist rotors. The advanced rotor design broadens the supercharger’s effective range, enhancing low-rpm torque and high-rpm horsepower.

Chevrolet Performance’s LSA 6.2L supercharged crate engine package comes fully dressed, from the top of the charge-cooled supercharger assembly to the ignition system, water pump, balancer, and more. It is a less-costly alternative to the LS9 engine and makes a great transplant for any off-road LS-powered vehicle or pre-1976 car or truck. It also comes with conventional wet-sump lubrication system.

NOTE: This engine includes an eight-bolt crankshaft flange that may require an adapter for use with some transmissions.


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 12623968):
Cast-aluminum with six-bolt, cross-bolted main caps
Crankshaft (P/N 12603616):
Forged steel with eight-bolt flange
Connecting Rods (P/N 12604857):
Powdered metal
Pistons (P/N 12625119):
Hypereutectic aluminum
Camshaft Type (P/N 12623064):
Hydraulic roller
Valve Lift (in.):
.492 intake / .480 exhaust
Camshaft Duration (@.050 in.):
198° intake / 216° exhaust


Cylinder Heads (P/N 12604860):
L92 style port; “as cast” with 68-cc chambers
Valve Size (in.):
2.160 intake / 1.590 exhaust
Compression Ratio:
Rocker Arms (P/N 12569167 intake):
Investment-cast, roller trunnion
Rocker Arms (P/N 10214664 exhaust):
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 or accessory drive components
    • LSA Controller Kit (P/N 19259293) available for non-original applications. Kit includes ECM, wiring harness, O2 sensors, and throttle pedal for ETC operation.
    • Coolant pump included (P/N 20945282)
    • Intended for pre-1976 street vehicles or any off-road vehicle
    • Includes eight-bolt crank flange
    • Not intended for marine applications
    • Includes dual mass flywheel (P/N 24240678)

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Download a catalog for a full listing of components and related parts.

E-ROD System — LSA 6.2L • P/N 19257456
Automatic • P/N 19257460 Manual

Transmission Controller • P/N 19257661

SuperMatic 4L85-E Four-Speed
Transmission • P/N 19154550

LSA Accessory Drive System w/o AC • P/N 19243525

Eight-Bolt Crankshaft Adapter Kit • P/N 19125597

LSA Accessory Drive System AC add-on kit • P/N 19244106

  • 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.