19271821 Circle Track Crate Engine CT525

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  • Chevrolet Performance Circle Track Crate Engine CT 525 19331563

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Item #: 19331563
Reg. Price: $9,450.10
Our Price: $7,610.08


19331563 Replaces # 19271821 CT 525 Circle Track Engine 533 HP 477lb.-ft
• The 19331563 CT525 does not include a water pump or factory exhaust manifolds as shown in pictures

Lightweight, High-RPM LS Power!
Chevrolet Performance’s deep-breathing, high-revving CT525 6.2L crate engine is based on the LS engine family
and delivers serious power for serious racing series, including Super Late Model and modifieds.
It is similar to the 6.2L LS3, but we’ve adapted it to circle track racing with a carbureted intake manifold, 6-quart
racing oil pan and more. The engine is lightweight and strong, using an aluminum block with cross-bolted 6-bolt
main caps and high-?ow LS3 rectangular-port cylinder heads. This combination produces 533 hp at 6,600 rpm and a
hefty 477 lb.-ft. of torque at 5,200 rpm.
The CT525 6.2L comes with coil-on-plug ignition, and an SFI-certified balancer. All that’s needed to complete
the assembly is a carburetor, wanter pump, exhaust manifolds, starter and our LSX ignition controller P/N 19171130 – all available from CrateEngineDepot.com.


Tech Specs    
Part Number:  


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 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 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 12569167 int):   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,
shown on next page)
• Requires addition of carburetor, starter, 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 ?lter and cooler (will increase capacity to approximately
8 quarts)
• For Circle Track Racing only – Not intended for street use.
• For 2016, the CT525 does not include a water pump
or factory exhaust manifolds
• Circle Track racing engines from Chevrolet Performance
include anti-tampering seals installed


Still have questions or want more information, Please call us at 847-752-6172


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Product Accessories for Chevrolet Performance Circle Track Crate Engine CT 525 19331563

Carburetor (670 Holley) 19170092
List: $494.63
Price: $469.90
Gen III/Gen IV Starter 10465385
List: $590.00
Price: $426.50
LSX Ignition Controller 19355418
List: $502.13
Price: $441.87
Ls Water Pump 19180610
List: $364.39
Price: $255.08
No image available.
List: $347.91
Price: $260.93
No image available.
List: $334.47
Price: $250.85
Gasket 12617944
List: $19.69
Price: $13.78