Chevrolet Performance

Chevrolet Performance CT525 Circle Track Engine - 19432720

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All GM Engines are currently on back order

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. It is rated at 525 hp and 471 lb-ft of torque!

This 6.2L engine is similar to the LS3 V-8 that is standard in the Chevrolet Corvette, but it's been adapted to Circle Track Racing with a carburetor intake manifold, 6-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 the Chevrolet Performance LSX ignition controller P/N 19171130, which can be added as an option.


Part Number:
Camshaft Duration (@.050 in.):
226° intake / 236° exhaust
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
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:
Rocker Arms (P/N 12569167 int):
Investment-cast, roller trunnion
Rocker Arms (P/N 10214664 exh):
Investment-cast, roller trunnion
Rocker Arm Ratio:
Recommended Fuel:
92 octane
Maximum Recommended rpm:
Ignition Timing:Reluctor Wheel: 

The LSX Ignition Controller features:

  • Distributorless plug-in system for carbureted LS engines with 58x reluctor wheel
  • Several pre-programmed timing curves provided
  • Supplied software allows you to create custom vacuum advance curves, timing curves, program lo and hi rpm rev limiter and step retard
  • Plugs into stock sensors (not provided)
  • MAP sensor provided
  • Compatible with all LS series ignition coils


$150.00 (Fixed Shipping Cost)