19260164 - GMPP LSA 6.2L 556 HP Supercharged Crate Engine
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The new 2009-2013 Cadillac CTS-V ups its performance with an all new 6.2L supercharged LSA engine that delivers 556 HP making it second only to the Corvettes LS9 supercharged engine as the most powerful production LS crate engine offered by GM Performance Parts. It is based on the same foundation as the LS9, but with a slightly smaller supercharger and a few other unique components designed to deliver Cadillac's signature quietness and refinement.
But just because the LSA doesn't have the same peak power numbers of the LS9 engine doesn't mean it comes up short in any important measurement. The unique aluminum cylinder block casting houses a forged steel crankshaft and super tough reciprocating parts, integrated piston cooling jets, high flow cylinder heads and a relatively mild camshaft with .492" lift on both intake and exhaust sides.
The forced induction of the 1.9L sixth generation supercharger makes up for the comparative lack of valve lift by packing the combustion chamber full of air and fuel. This gives the LSA 556 horsepower and 551 Ft. Lbs of torque, along with excellent idle quality and "right now" throttle response. And unlike the LS9, the LSA comes with a conventional wet sump lubrication system.
- Engine type - LS series Gen IV small block V8
- Displacement - 376 CID (6.2L)
- Bore & Stroke - 4.06" X 3.62" (103.25mm X 92mm)
- Block - 12627939 cast aluminum with 6 bolt cross-bolted main caps
- Crankshaft - 12603616 - 8-bolt Forged steel
- Connecting rods - 12604857 powdered metal
- Pistons - 12625119 Hypereutectic aluminum
- Camshaft - Hydraulic roller - .480" / .480", 198 / 216 @ .050"
- Cylinder heads - 12604860 aluminum L92 style with 68cc chambers
- Valve size - 2.16 / 1.59
- Compression ratio - 9.1:1
- Rockers arms - 1.7:1 Roller trunnion
- Recommended fuel - 92 octane
- Max RPM - 6600
- Reluctor wheel - 58X
• Fully GM assembled long block
• Ignition Coils, Plug Wires and Spark Plugs
• Oil pump, pick-up and Corvette oil pan
• Exhaust Manifolds
• Supercharger, Intake, Injectors and Throttle Body
• Factory 12636325 A/T flexplate
• Harmonic Balancer
• Front timing cover
• Aluminum Water Pump
• 22901367 Intercooler Fluid Pump
• Oil Filter
• Passenger Side RH Oil Dipstick and Tube
General Motors limited 2 year / 50,000 mile parts & labor warranty. Click on Document tab above for full details.
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- Chevrolet Performance Parts
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- Performance/Engine/Drivetrain - LSx Performance - 6.2L-376 CID Performance Engines
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