GM 6.2L LS3 Crate Engine 430 Horsepower, 424 ft. lbs. Torque
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GM 6.2L LS3 Crate Engine 430 Horsepower, 424 ft. lbs. Torque

GSQ3694
In stock
$28,507.97
  Starting with the '08 Corvette, the world was first introduced to GM's latest small block...
$28,507.97

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GM 6.2L LS3 Crate Engine 430 Horsepower, 424 ft. lbs. Torque

 

Starting with the '08 Corvette, the world was first introduced to GM's latest small block V8 creation the 6.2-liter LS3. A continuation of the industry leading V8 engines from GM Powertrain, the LS3 kicks out 430 horsepower and 424 lb.-ft. of torque. (In the Corvette, those numbers go to 436 hp and 428 lb.-ft. of torque with the optional dual mode exhaust system.) It's a brute of a small block with 376 ready cubes at your beckon call. The LS series of engines from GM Powertrain have broken new ground for efficiency and performance from a pushrod platform engine. The LS3 continues the engineering breakthroughs with revised cylinder heads featuring rectangle ports borrowed from the vaunted LS7. The heads feature 63 cc combustion chambers, 2.16-inch intake valves, and 1.59-inch exhaust valves. The camshaft features an aggressive .551-inches of lift on the intake side with less overlap (than the LS2) for even greater airflow and power. Rocker arms with a 1.7:1 ratio sit on top of the heads. In the bottom end, the aluminium 6-bolts/main block features 4.06-inch bores and 3.62-inch stroke. A nodular iron crankshaft, powdered metal rods, and aluminium pistons (10.7:1 compression ratio) round out a rev-happy short block. Red line for the LS3 comes at 6600 rpm, and you will get there very quickly. With a high-tech GM foundation, aluminium block, and high flowing rectangular-port heads, the LS3 is the new standard in the small block world. The LS3 helps power the new Corvette to a top speed of 190 mph. What will it power you to?

Specifications:
Power: 430 HP @ 5900 RPM, 424 ft. lbs. of torque @ 4600 RPM
Displacement: 376 CID, 6.2L
Bore x Stroke: 4.060" x 3.620"
Compression Ratio: 10.7:1
Recommended Fuel: 92 Octane
Block: Cast Aluminium with 6 bolt cross bolted main caps
Crankshaft: Nodular Iron
Connecting Rods: Powdered Metal Steel
Pistons: Hypereutectic Aluminium
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .551" Intake / .522" exhaust
Cam Duration @ .050": 204 deg. Intake / 211 deg. Exhaust
Lobe Separation: N/A
Cylinder Heads: Aluminium L92/LS3 style ports
Combustion Chamber: 68cc
Valves: 2.165" Intake/ 1.590" Exhaust
Rocker Arms: Cast Roller Trunnion, 1.7:1 Ratio
Balance: Internal
Reluctor: 58X
Maximum GM Recommended RPM: 6600
GM Recommended Torque Converter Stall 2400-2800

Engine Includes:
- Fully GM assembled long block
- Oil pump, pick-up and Camaro oil pan
- Corvette Harmonic Balancer
- Front timing cover with cam sensor
- Oil Filter
- Passenger Side RH Oil Dipstick and Tube (not included)

Note: Does not include oil dipstick tube, oil dipstick, or steam crossover tube.

 

 

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