GM Performance LS3 6.2L 376/430 HP Long Block from GM Performance Part#19432422 For Sale

GM Performance LS3 6.2L 376/430 HP Long Block from GM Performance Part#19432422


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GM Performance LS3 6.2L 376/430 HP Long Block from GM Performance Part#19432422:
$5099.00

GM Performance LS3 6.2L 376/430 HP Long Block New from GM Performance Part#19432422 OLD PART#19420382

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 aluminum 6-bolts/main block features 4.06-inch bores and 3.62-inch stroke. A nodular iron crankshaft, powdered metal rods, and aluminum 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, aluminum block, and high flowing rectangular-port heads, the LS3 is the new standard in the small block world.

Specifications:

  • Engine Type:LS-Series Gen IV Small-Block V-8
  • Displacement:376 ci (6.2L)
  • Bore x Stroke:4.065 x 3.622 in. (103.250 x 92 mm)
  • Block:Cast-aluminum with six-bolt, cross-bolted main caps
  • Crankshaft:Nodular iron
  • Connecting Rods:Powdered metal
  • Pistons:Hypereutectic aluminum
  • Camshaft Type:Hydraulic roller
  • Valve Lift:.551 in. intake / .522 in. exhaust
  • Camshaft Duration (@.050 in.):204-degree intake / 211-degree exhaust
  • Cylinder Heads:L92 style port; ''as cast'' with 68-cc chambers
  • Valve Size:2.165 in. intake / 1.590 in. exhaust
  • Compression Ratio:10.71
  • Rocker Arms:Investment-cast, roller trunnion
  • Rocker Arm Ratio:1.7:1
  • Recommended Fuel:92 octane
  • Maximum Recommended rpm:6600
  • Reluctor Wheel:58X
  • Engine Includes:
    • Fully GM assembled long block
    • Oil pump, pick-up and Camaro oil pan (12628771)
    • Corvette Harmonic Balancer
    • Front timing cover with cam sensor
    • Oil Filter
    • Passenger Side RH Oil Dipstick and Tube (not included)

    *** LIFTGATE SERVICE IS AN ADDITIONAL $60.00, SO PLEASE CONTACT US BEFORE YOU PURCHASE AN ENGINE OR TRANSMISSION SO THAT WE MAY ADD THE LIFTGATE FEE TO YOUR PURCHASE PRICE. DELIVERY CAN ONLY BE MADE TO THE ADDRESS SHOWN WITH YOUR PURCHASE. THANKS!**





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