CT525
533 HP @6,600 RPM/ 477 LB-FT TORQUE @5,200 RPMprice: $9,169
part number: 19418211
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Exclusive LS3-based Chevrolet Performance racing engine is a lightweight powerhouse Chevrolet Performance’s CT525 6.2L crate engine is based on the latest-generation LS engine family and delivers serious power for serious racing series, including Super Late Model and similar classes. It is rated at 533 hp and 477 lb-ft of torque. This 6.2L engine is similar to the LS3 V-8 that is standard in the Chevrolet Corvette, but we’ve adapted it to Circle Track racing with a carburetor intake manifold, six-quart racing oil pan, and more. The engine is lightweight and strong, using an aluminum block with cross-bolted six-bolt main caps and high-flow LS3 rectangular-port cylinder heads. The CT525 6.2L comes with coil-on-plug ignition, a water pump, exhaust manifolds and an SFI-certified balancer. It also comes with a 14-inch/168-tooth automatic transmission flexplate. All that’s needed to complete the assembly is a carburetor, starter, and our LSX ignition controller, P/N 19171130. All the necessary parts are available online at chevroletperformance.com.
Part Number: 19331563
Engine Type: LS-Series Gen IV Small-Block V-8
Displacement (cu in): 376 (6.2L)
Bore x Stroke (in): 4.065 x 3.62 (103.25 x 92mm)
Block (P/N 12623967): Cast-aluminum with 6-bolt, cross-bolted main caps
Crankshaft (P/N 12597569): Nodular Iron
Connecting Rods (P/N 12649190): Powdered metal
Pistons (P/N 19207287): Hypereutectic aluminum
Camshaft Type (P/N 88958770): Hydraulic roller
Valve Lift (in): .525 intake / .525 exhaust
Camshaft Duration (@.050 in): 226° intake / 236° exhaust
Cylinder Heads (P/N 12629063): LS3 rectangular port; aluminum as-cast with 68cc chambers
Valve Size (in): 2.165 intake / 1.590 exhaust
Compression Ratio: 10.7:1 Nominal
Rocker Arms (P/N 12669995 int): Investment-cast, roller trunnion
Rocker Arms (P/N 12669993 exh): Investment-cast, roller trunnion
Rocker Arm Ratio: 1.7:1
Recommended Fuel: Premium pump
Reluctor Wheel: 58x
Maximum Recommended rpm: 6,700
Balanced: Internal
• Use LSX ignition controller P/N 19171130 (not included)
• Requires addition of carburetor, starter, fuel system, exhaust system, and front accessory drive system
• The 6-quart circle track oil pan is designed to clear most GM rear-steer chassis with stock engine location. Requires external oil filter and cooler (will increase capacity to approximately 8 quarts)
• For Circle Track Racing only – Not intended for street use.
• The CT525 does not include a water pump or factory exhaust manifolds
• Circle Track racing engines from Chevrolet Performance include anti-tampering seals installed