Designed for racing classes requiring more power than our proven CT350, CT355 and CT400 Gen I based racing engines, the all-new CT525 delivers the goods! It is an ideal engine for Super Late-Model-type cars.
Based on the latest production version of the now-famous Gen IV LS family of GM small-blocks that power the C6 Corvette, the CT525 is destined to set a new standard for affordable power. Aluminum block and heads, hypereutectic aluminum pistons, nodular iron crank and hydraulic roller tappet camshaft churn out an impressive 533 horses in a bullet-proof race-proven package. The recent design changes that have produced the power-building rectangular port cylinder head design, also create a torque-y, yet relatively high revving engine. The CT525 fills the "Need for Speed" at a surprisingly affordable price. The CT525 uses a conventional four-barrel carb, individual runner manifold, retaining the factory coil-near-plug ignition design.
Includes a 6 quart circle track oil pan that is designed to clear most GM rear-steer chassis with stock engine location. Requires external oil filter and cooler which increases oil capacity to approximately 8 quarts.
Power: 533 HP @ 6600 RPM, 477 ft. lbs. of torque @ 5200 RPM
Displacement: 376 CID, 6.2L
Bore x Stroke: 4.060” x 3.620”
Compression Ratio: 10.7:1
Recommended Fuel: 92 Octane
Block: Cast Aluminum with 6 bolt cross bolted main caps.
Crankshaft: Nodular Iron
Connecting Rods: Powdered Metal Steel
Pistons: Hypereutectic Aluminum
Camshaft: Steel Hydraulic Roller Tappet
Cam Lift: .525” Intake / .525” exhaust
Cam Duration @ .050”: 226 deg. Intake / 236 deg. Exhaust
Lobe Separation: 110 Degree
Cylinder Heads: Aluminum LS3 style rectangular ports.
Combustion Chamber: 68cc
Valves: 2.165” Intake/ 1.590” Exhaust
Rocker Arms: Cast Roller Trunnion, 1.7:1 Ratio
Maximum GM Recommended RPM: 6700
• Fully GM assembled long block
• Ignition Coils, Plug Wires and Spark Plugs
• Oil pump, pick-up and 6 quart oil pan
• Aluminum 4 barrel Single Plane Intake
• 14” Auto Trans Flexplate
• SFI Certified Harmonic Balancer
• Front timing cover
NOTE: Does NOT include water pump or exhaust manifolds
Excludes the General Motors limited 2 year / 50,000 mile parts & labor warranty.
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