top of page


SKU: 19434598

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.

  • Horsepower

    533 HP

  • Torque

    477 LB-FT

  • Tech Specs

    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 six-bolt, cross-bolted main caps

    Crankshaft (P/N 12597569): Nodular iron

    Connecting Rods (P/N 12607475): 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 rectangle port; aluminum “as-cast” with 68-cc chambers

    Valve Size (in.): 2.165 intake / 1.590 exhaust

    Compression Ratio: 10.7:1

    Rocker Arms (P/N 12569167 int): Investment-cast, roller trunnion

    Rocker Arms (P/N 10214664 exh): Investment-cast, roller trunnion

    Rocker Arm Ratio: 1.7:1

    Recommended Fuel: 92 octane

    Maximum Recommended rpm: 6700

    Reluctor Wheel: 58X

    Balanced: Internal

bottom of page