Product Summary

Long Block Crate Engine Type, 10.7:1 Compression Ratio

  • Approved and sealed for Knoxville Pro Sprint Class competition
  • Dyno-verified horsepower and torque
  • Anti-tampering seals installed
  • Cast aluminum long block
  • Rectangular port L3 heads (68cc chambers)
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Key Specs

Crate Engine TypeLong Block
Compression Ratio10.7:1
Engine Displacement376 cu. in.
Camshaft TypeHydraulic Roller Tappet
Cylinder Head MaterialAluminum
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Need To Know

Truck Shipment

Truck shipments must be pre-paid with a credit card, certified check or money order

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Speedway Motors Racing Engines 12119418211K Details

Approved for the Pro Sprint Class at Knoxville Raceway this competition deep-breathing, high-revving CT525 6.2L crate engine is upgraded with forged aluminum pistons designed to support its performance and enhance its durability. It is based on the LS engine family and delivers serious power for serious racing series, including Super Late Model and Modifieds.

The engine family commonly called the LS series debuted in 1997. General Motors called it the Gen-III Small-Block, with the iron-block versions in trucks and the all-aluminum LS1 introduced in the then-new C5 Corvette. GM has continued to refer to its modern V-8 engine family as Gen III and Gen IV, but to the enthusiasts who quickly grasped the tremendous performance potential of the engines, every engine of the platform is nicknamed "LS."

Chevrolet Performance is committed to providing proven, innovative performance technology that is truly.... more than just power. Chevrolet Performance Parts are engineered, developed and tested to exceed your expectations for fit and function.

The CT525 is based on the 6.2L LS3, but Chevrolet Performance has adapted it to circle track racing with a carbureted intake manifold, a high-lift roller camshaft, 6-quart racing oil pan and more.

  • Approved and sealed for Knoxville Pro Sprint Class competition
  • Dyno-verified horsepower and torque
  • Anti-tampering seals installed
  • Cast aluminum long block
  • Rectangular port L3 heads (68cc chambers)
  • 533 Horsepower
  • 477 lb-ft torque
  • Single plane intake manifold

Warranty Information

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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

This engine is sold as a Race Engine and does not carry any warranty.

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

Speedway Motors Racing Engines 12119418211K Specifications

KEY SPECS
MFG. Part #12119418211K
BrandSpeedway Motors Racing Engines
Crate Engine TypeLong Block
Compression Ratio10.7:1
Engine Displacement376 cu. in.
Camshaft TypeHydraulic Roller Tappet
Cylinder Head MaterialAluminum
Piston MaterialForged Aluminum
Crankshaft MaterialNodular Iron
Carburetor IncludedNo
Intake Manifold IncludedYes
Distributor IncludedNo
Connecting Rod MaterialPowdered Metal
Valve Covers IncludedYes
Engine BalanceInternal
Cylinder Heads IncludedYes
Throttle Body IncludedNo
Timing Cover IncludedYes
Oil Pan IncludedYes
Water Pump IncludedNo
Harmonic Balancer IncludedYes
Flexplate IncludedYes
Flywheel IncludedNo
Air Cleaner IncludedNo
Spark Plugs IncludedYes
Spark Plug Wires IncludedYes
Computer IncludedNo
Wiring Harness IncludedNo
Reluctor Wheel58x
Accessory Bolt Holes DrilledYes
Spark Plug StyleStock
GENERAL
Torque477 ft./lbs.
Horsepower533 horsepower
Maximum RPM6700
Combustion Chamber Volume68cc
Camshaft Duration (.050 in)226° intake / 236° exhaust
Camshaft Lift (in).525 intake / .525 exhaust
Bore x Stroke (in)4.060" x 3.620"
AssembledYes
Cylinder Head StyleAssembled
CNC-Machined Combustion ChamberNo
Head Gaskets IncludedYes
Carburetor QuantityOne
Intake StyleSingle Plane
Intake MaterialAluminum
Intake Gaskets IncludedYes
Intake Manifold Fasteners IncludedYes
Camshaft IncludedYes
Rocker ArmsInvestment-cast, roller trunnion
Rocker Arm Ratio1.7:1
BlockCast-aluminum with six-bolt, cross-bolted main caps
Sold in QuantityEach

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