Description
MR Auto Group Motors CT525 Sealed 6.2L LS Circle Track Crate Engine – 533 HP & 477 ft./lbs. Torque!
Built for serious racing, the MR Auto Group Motors CT525 6.2L LS Crate Engine delivers elite performance for Circle Track competitions, Super Late Models, and Modifieds!
The MR Auto Group Motors CT525 Sealed 6.2L LS Circle Track Crate Engine is a competition-ready powerhouse, derived from the legendary LS3 platform and adapted for high-performance oval track racing. It features a single-plane intake, forged aluminum pistons, and a high-lift camshaft, optimized for maximum power output at 6,600 RPM.
Every engine is dyno-verified and undergoes a proprietary piston ring break-in process to ensure peak performance from the first lap!
What’s Included in the Engine?
✅ Chevrolet Performance Cast-Aluminum LS3-Based Block – Strong yet lightweight with six-bolt main caps
✅ LS3 High-Flow Rectangular-Port Cylinder Heads – Delivers exceptional airflow & combustion efficiency
✅ Forged Aluminum Pistons & Hydraulic Roller Camshaft – Supports high-RPM durability
✅ Single-Plane Aluminum Intake Manifold – Enhances high-speed fuel-air mixture efficiency
✅ 6-Quart Racing Oil Pan – Fits most GM rear-steer chassis with stock engine location
✅ SFI-Certified Harmonic Balancer – Ensures smooth operation under high loads
✅ Pre-Tuned & Dyno-Tested – Custom lash & timing settings for optimized track performance
⚠️ EXCLUDES Carburetor, Starter, Fuel System, Exhaust System, and Front Accessory Drive System
Technical Specifications
| Feature | Details |
|---|---|
| Brand | MR Auto Group Motors Racing Engines |
| Manufacturer’s Part # | 19418211 |
| Product Type | Long Block Crate Engine |
| Engine Displacement | 6.2L / 376 cu. in. |
| Horsepower | 533 HP |
| Torque | 477 ft./lbs. |
| Compression Ratio | 10.7:1 |
| Induction Type | Carbureted |
| Camshaft Type | Hydraulic Roller Tappet |
| Cylinder Head Material | Aluminum |
| Piston Material | Forged Aluminum |
| Crankshaft Material | Nodular Iron |
| Connecting Rod Material | Powdered Metal |
| Valve Covers Included | ✅ Yes |
| Cylinder Heads Included | ✅ Yes |
| Rear Main Seal Style | 1-piece |
| Oil Pan Included | ✅ Yes |
| Timing Cover Included | ✅ Yes |
| Water Pump Included | ❌ No |
| Harmonic Balancer Included | ✅ Yes |
| Flexplate Included | ✅ Yes |
| Flywheel Included | ❌ No |
| Air Cleaner Included | ❌ No |
| Spark Plugs Included | ✅ Yes |
| Spark Plug Wires Included | ✅ Yes |
| Recommended Fuel | Racing Fuel Only |
Built for durability, speed, and elite racing performance!
Fitment & Compatibility
✔ Designed for Super Late Model, Modified, and Circle Track Racing
✔ Compatible with Most GM Rear-Steer Chassis in Stock Locations
✔ Sealed & Certified for Racing Series Compliance
Check racing series regulations to ensure compliance before purchasing.
Installation Notes & Recommendations
Professional Installation Recommended – Ensures proper setup for peak performance
⚙️ Requires External Oil Filter & Cooler – Expands oil capacity to approximately 8 quarts
Factory-Sealed to Prevent Unauthorized Modifications
⚠️ Check vehicle compatibility before ordering!
❓ Frequently Asked Questions (FAQ)
Is this engine ready to race right out of the crate?
- Yes! This engine is fully dyno-tested, tuned, and sealed for Circle Track competition.
Can I use this engine for street driving?
- No, this engine is for racing use only. It is not designed for street applications.
What fuel does this engine require?
- This engine requires racing fuel for optimal combustion & performance.
Does this engine come with a carburetor?
- No, a carburetor is NOT included. You will need to select a high-performance racing carburetor.
Does this engine come with a warranty?
- No, racing engines do not carry a warranty. Chevrolet Performance does not cover race engines under their crate engine warranty.
Order Your MR Auto Group Motors CT525 Sealed 6.2L LS Crate Engine Today!
Take your race program to the next level with the MR Auto Group Motors CT525 6.2L LS Circle Track Crate Engine!
✔ 533 HP & 477 ft./lbs. Torque – Built for Racing!
✔ Factory-Sealed for Compliance in Racing Series
✔ Forged Internals & High-Performance LS3-Based Design
✔ Dyno-Verified & Pre-Tuned for Maximum Power Output
ORDER NOW & RULE THE TRACK WITH UNMATCHED PERFORMANCE!
- MR Auto Group Motors CT525 Dynoed Engine 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
- The CT525 Dynoed Engine 6.2L comes with coil-on-plug ignition, and an SFI-certified balancer
- Dyno-verified horsepower and torque
- Piston rings are broken-in using a proprietary dyno program
- Lash and timing are individually tuned.
CT525 Sealed 6.2L LS Circle Track Crate Engine details
MR Auto Group Motors CT525 Dynoed Engine 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 have 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-flow LS3 rectangular-port cylinder heads. It also features stong forged pistons. This combination produces 533 hp at 6,600 rpm and a hefty 477 lb.-ft. of torque at 5,200 rpm.
The CT525 Dynoed Engine 6.2L comes with coil-on-plug ignition, and an SFI-certified balancer.
Notes:
- Dyno-verified horsepower and torque
- Chevrolet Performance Parts Crate Engine P/N 19418211
- Piston rings are broken-in using a proprietary dyno program
- Lash and timing are individually tuned
- Use LSX ignition controller (P/N 19171130)
- 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 Dynoed Engine does not include a water pump or factory exhaust manifolds
- Circle Track racing engines from Chevrolet Performance include anti-tampering seals installed
- Engine is ready to race right out of the crate!
- Dyno sheet of your engine
Warranties
PLEASE NOTE:
Chevrolet/GM Performance’s Crate Engine Warranty will not cover engines that fall into the following categories:
- Any vehicle that has been used for racing (on or off track), stunt driving, performance testing, or used under other extreme operating conditions
- Racing engines and/or components
-
Warranty Information (PDF)
KEY SPECS |
|
|---|---|
| MFG. Part # | 19418211 |
| Brand | MR Auto Group Motors Racing Engines |
| Crate Engine Type | Long Block |
| Engine Displacement | 376 cu. in. |
| Horsepower | 533 horsepower |
| Compression Ratio | 10.7:1 |
| Torque | 477 ft./lbs. |
| Camshaft Type | Hydraulic Roller Tappet |
| Cylinder Head Material | Aluminum |
| Piston Material | Forged Aluminum |
| Crankshaft Material | Nodular Iron |
| Spark Plug Style | Stock |
| Combustion Chamber Volume | 68cc |
| Camshaft Duration (.050 in) | 226° intake / 236° exhaust |
| Camshaft Lift (in) | .525 intake / .525 exhaust |
| Bore x Stroke (in) | 4.060″ x 3.620″ |
| Carburetor Included | No |
| Intake Manifold Included | Yes |
| Distributor Included | No |
| Connecting Rod Material | Powdered Metal |
| Valve Covers Included | Yes |
| Engine Balance | Internal |
| Cylinder Heads Included | Yes |
| Rear Main Seal Style | 1-piece |
| Throttle Body Included | No |
| Oil Pan Included | Yes |
| Timing Cover Included | Yes |
| Water Pump Included | No |
| Harmonic Balancer Included | Yes |
| Flexplate Included | Yes |
| Air Cleaner Included | No |
| Spark Plugs Included | Yes |
| Spark Plug Wires Included | Yes |
| Computer Included | No |
| Wiring Harness Included | No |
| Accessory Bolt Holes Drilled | Yes |
GENERAL |
|
| Maximum RPM | 6700 |
| Assembled | Yes |
| Cylinder Head Style | Assembled |
| CNC-Machined Combustion Chamber | No |
| Intake Valve Diameter | 2.165″ |
| Exhaust Valve Diameter | 1.59″ |
| Head Gaskets Included | Yes |
| Carburetor Quantity | One |
| Intake Style | Single Plane |
| Intake Material | Aluminum |
| Intake Gaskets Included | Yes |
| Intake Manifold Fasteners Included | Yes |
| Camshaft Included | Yes |
| Rocker Arms | Investment-cast, roller trunnion |
| Rocker Arm Ratio | 1.7:1 |
| Reluctor Wheel | 58x |
| Block | Cast-aluminum with six-bolt, cross-bolted main caps |
| Sold in Quantity | Each |
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