LS3 6.2L Forged Long Block Engine CT525 376CID 533HP (Unassembled) by Chevrolet Performance 19434743

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The Power and Strength of Our LS Racing Engine in a Long Block!

The high-revving 525 RLB crate engine is assembled with strong forged pistons and heavy-duty connecting rod bolts designed to support its performance capability and enhance its durability. With its deep-breathing LS3 rectangular-port cylinder heads, it is a combination rated at 533 horsepower at 6,600 rpm and a strong 477 lb.-ft. of torque at 5,200 rpm, when used with a 4-barrel carburetor and intake manifold, per Chevrolet Performance testing.

The engine assembly comes with coil-on-plug ignition and an SFI-certified balancer, along with a 6-quart racing oil pan and more. All that’s needed to complete the assembly is an induction and ignition system — and all those components are also available from Chevrolet Performance.

INSTALLATION NOTES:
• Requires addition of induction and ignition control system, starter, fuel system, exhaust system, and front accessory drive system.
• The 6-quart racing oil pan is designed to clear most GM rear-steer chassis with stock engine location.
• The long block is designed for universal racing-sanctioning bodies. It is not intended for street use.
• The 525RLB does not include water pump, intake manifold, or factory exhaust manifolds.
• Chevrolet Performance Racing Long Block engines include factory-installed anti-tampering seals.

Specifications:
• Power: 533 HP @ 6600 RPM, 477 ft. lbs. of torque @ 5200 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 Aluminum with 6 bolt cross-bolted main caps.
• Crankshaft: Nodular Iron
• Connecting Rods: Powdered Metal Steel
• Pistons: Forged Aluminum
• Camshaft: Steel Hydraulic Roller Tappet
• Cam Lift: .525” Intake / .525” exhaust
• Cam Duration @ .050”: 226 deg. Intake / 236 deg. Exhaust
• Lobe Separation: 110 Degree
• Cylinder Heads: Aluminum LS3 style rectangular 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: 6700

Engine Includes:
• Fully GM assembled long block
• Ignition Coils, Plug Wires and Spark Plugs
• Oil pump, pick-up and 6-quart oil pan
• SFI Certified Harmonic Balancer
• Front timing cover

NOTE: Does NOT include oil pump pick-up tube, oil pan, spark plugs, or racing seal bolts.