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The Chevy LS engine swap has become one of the most popular modifications among car enthusiasts, especially for those looking to achieve significant horsepower without breaking the bank. This guide will walk you through the process of achieving 400 horsepower using the M/T Super 40 cam and cost-effective supporting modifications.
Understanding the Chevy LS Engine
The LS engine family is known for its robust design and performance potential. Originally designed for the Chevrolet Corvette, these engines have found their way into various vehicles due to their lightweight nature and high power output. Key features of the LS engine include:
- Aluminum block construction for weight savings
- Modern design with efficient combustion chambers
- Wide availability of aftermarket parts
Choosing the Right LS Engine
When selecting an LS engine for your swap, consider the following options:
- LS1: 5.7L V8, good for budget builds, found in early 2000s Camaros and Corvettes.
- LS2: 6.0L V8, offers more power and torque, often found in GTOs and Trailblazers.
- LS3: 6.2L V8, provides higher horsepower, ideal for performance builds.
Essential Components for an LS Swap
To successfully complete an LS swap, you’ll need several key components:
- Engine and transmission mounts
- Wiring harness and ECU
- Exhaust headers
- Fuel system upgrades
- Cooling system modifications
M/T Super 40 Camshaft Overview
The M/T Super 40 camshaft is an excellent choice for those looking to achieve a balance between performance and drivability. Key specifications include:
- Duration: 224/230 at 0.050″
- Lift: .600″ with 1.7 rockers
- LSA: 112 degrees
Supporting Mods for Achieving 400 HP
To reach the 400 horsepower mark, consider the following cost-effective modifications:
- Cold Air Intake: Improves airflow to the engine, enhancing performance.
- High-Performance Headers: Increases exhaust flow, reducing back pressure.
- Upgraded Fuel Injectors: Ensures adequate fuel delivery for higher horsepower.
- Performance Tuning: Optimizes engine parameters for maximum output.
Installation Process
Follow these steps for a successful LS swap installation:
- Remove the old engine and transmission from the vehicle.
- Install the new engine mounts and position the LS engine.
- Connect the wiring harness and ECU.
- Install the exhaust headers and connect the exhaust system.
- Upgrade the fuel system and cooling components.
- Double-check all connections and fluid levels before starting the engine.
Tuning for Performance
After installation, tuning is crucial to maximize performance. Consider these options:
- Use a reputable tuning software or service to adjust fuel maps and ignition timing.
- Monitor air-fuel ratios and engine temperatures during tuning.
- Perform a dyno test to verify horsepower and torque gains.
Final Thoughts
Achieving 400 horsepower with a budget-friendly LS swap is possible with the right components and modifications. By selecting the appropriate engine, camshaft, and supporting mods, you can create a powerful and reliable vehicle that meets your performance goals.