GM Performance Crate Engines, Circle Track, Assembled, New Block, CT525, LS3 Heads, LS-Based, 533
Part Number:GMP-19432720
GM Performance Crate Engines, Circle Track, Assembled, New Block, CT525, LS3 Heads, LS-Based, 533 HP/477 TQ, with Anti-Tampering Seals, Chevy, Each (PART #GMP-19432720)
Factory-sealed GM Performance LS3 CT525 Circle Track 376/533 long block crate engines are designed specifically for Super Late Model competition. Based on the LS family powering the C6 Corvette, they include aluminum block and 68cc cylinder heads (12675871), forged aluminum pistons (19418214), nodular iron crankshaft (12597569), and hydraulic roller tappet camshaft (88958770)--all combining to churn out an impressive 533 hp in a bulletproof, race-proven package. Recent design changes include a power-building rectangular port cylinder head that also creates a torque-y, yet relatively high-revving engine. The factory-sealed GM Performance LS3 CT525 Circle Track long block crate engine uses a conventional 4-barrel carburetor, individual runner manifold, and retains the factory coil-near-plug ignition design.
Engine specifications and features include:
- 376 c.i.d./6.2L (58x reluctor)
- 533 hp at 6,600 rpm, 477 lbs.-ft. of torque at 5,200 rpm (horsepower rating is 501 to 550)
- 4.060 in. bore x 3.620 in. stroke
- 10.7:1 compression ratio
- Recommended fuel is 92 octane
- Cast aluminum block with 6-bolt cross-bolted main caps
- Powdered metal steel connecting rods (12649190)
- ARP standard high-performance rod bolts (8740 chromoly steel)
- ASA-profile hydraulic roller tappet camshaft; valve lift: 0.525 in. intake, 0.525 in. exhaust with duration at .050 in. of 226-degree intake, 236-degree exhaust with 110 degree lobe separation
- 2.165 in. intake/1.590 in. exhaust valves
- 1.7:1 ratio cast roller trunnion rocker arms (12696105 intake/12681275 exhaust)
- Maximum GM-recommended rpm: 6,700
- Ignition coils, plug wires, and spark plugs
- Oil pump and pick-up (15W-50 Mobil 1 recommended for competitive/track events)
- Front timing cover (no water pump or exhaust manifolds)
- Replaces the 19418211 model and uses the LS/LSX 19355863 ignition controller (sold separately)
- Required parts include a carburetor, starter, and fuel/exhaust/front accessory drive systems
- This engine is not designed, nor intended to be used in any marine applications
- GM Performance racing crate engines are excluded from the limited warranty
SPECIFICATIONS |
|
| Brand | GM Performance |
| Manufacturer's Part Number | 19432720 |
| Part Type | Crate Engines |
| Product Line | GM Performance LS3 CT525 Circle Track 376/533 Long Block Crate Engines |
| Crate Engine Family | Chevy LS |
| Actual Engine Displacement | 6.2L/376 |
| Crate Engine Cylinder Head Material | Aluminum |
| Engine Block Material | Aluminum |
| Advertised Compression Ratio | 10.7:1 |
| Assembled | Yes |
| Engine Balance | Internal |
| Cam Style | Hydraulic roller, OE roller |
| Rear Main Seal Style | 1-piece |
| Intake Manifold Included | Yes |
| Intake Manifold Style | Carbureted |
| Cylinder Heads Included | Yes |
| Carburetor Included | No |
| Throttle Body Included | No |
| Distributor Included | No |
| Oil Pan Included | Yes |
| Valve Covers Included | No |
| 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 |
| Computer Included | No |
| Wiring Harness Included | No |
| Supercharger Included | No |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | This crate engine includes: a 6-qt. circle track oil pan (clears most GM rear-steer chassis w/stock engine location), LS3-style rectangular-port heads, conventional aluminum 4-barrel intake manifold (single plane), SFI-certified balancer, and 14 in. flexplate. This product requires an external oil filter and cooler, increasing capacity to 8 quarts. |
| Special Attention | Check with your sanctioning body or racing group before performing any maintenance or repairs on this sealed racing engine. |
