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 we’ve adapted it 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 our LSX ignition controller P/N 19171130. All the necessary parts are available online at chevroletperformance.com.
Camshaft Duration (@.050 in.):
226° intake / 236° exhaust
LS-Series Gen IV Small-Block V-8
Displacement (cu. in.):
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):
Connecting Rods (P/N 12607475):
Pistons (P/N 19207287):
Camshaft Type (P/N 88958770):
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
Rocker Arms (P/N 12569167 int):
Investment-cast, roller trunnion
Rocker Arms (P/N 10214664 exh):
Investment-cast, roller trunnion
Rocker Arm Ratio:
Maximum Recommended rpm:
Ignition Timing:Reluctor Wheel:
Already own one, but lost some of the paperwork? We’ve got you covered with downloads and links for some of the more important documents below. You’ll find everything from the vital data about your engine’s capabilities to how to install it into your build, even all of the warranty information should you need to make a claim. And don’t forget, the best way we can make sure to get you the latest information on your specific part is to tell us which one you have by registering your engine. No matter what stage of your build you’re in — from shopping for the right part to that part having turned in a few miles — we have the information you need.
* The Manufacturer's Suggested Retail Price excludes destination freight charge, tax, title, license, dealer fees and optional equipment. Click here to see all Chevrolet vehicles' destination freight charges. Click here to see the 2015 City Express destination freight charge.
***The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Includes destination freight charge and gas guzzler tax.
Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance Parts may not meet Federal Motor Vehicle Safety Standards and emissions regulations and should not be operated on public roads. Chevrolet Performance customers are responsible for ensuring their use of Chevrolet Performance complies with applicable federal, state, and local laws, regulations, and ordinances. Many parts intended for racing or other “off-highway” use are not designed or tested for crashworthiness or to meet the safety needs of the motoring public, and may adversely affect the original intended performance or handling characteristics of the vehicle. These parts are designed and intended to be used with experts supervising their installation and use, to help assure the proper and safe operation of the vehicle.
To allow you to do an accurate price comparison with prices featured on other Internet sites, GM provides Internet pricing both with and without the Destination Freight Charge (see prices including Destination Freight Charge below). To get full pricing details, go to our Build Your Own section.