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The classic A-body Mopar is a favorite among car enthusiasts and builders alike. With a sleek design and powerful performance potential, many dream of building a 400 horsepower version of this iconic vehicle. However, the journey to achieve that power comes with its own set of challenges and costs. In this article, we will break down the various parts, labor, and overall cost involved in building a 400 HP A-body Mopar.
Understanding the A-Body Mopar Platform
The A-body platform was produced by Chrysler from 1964 to 1976 and includes models like the Plymouth Valiant, Dodge Dart, and Plymouth Barracuda. Known for their lightweight construction and nimble handling, these cars are perfect candidates for high-performance builds.
Key Components for a 400 HP Build
To achieve 400 horsepower, several key components must be considered. Each part plays a critical role in the overall performance of the vehicle. Here’s a breakdown of the essential components:
- Engine Block: A strong foundation is crucial. Consider using a 360 or 408 cubic inch engine block.
- Heads: Upgrading to performance cylinder heads can significantly improve airflow and power.
- Camshaft: A performance camshaft tailored for high RPMs will enhance horsepower and torque.
- Intake Manifold: A high-performance intake manifold allows for better air-fuel mixture delivery.
- Exhaust System: A free-flowing exhaust system reduces back pressure and improves performance.
- Fuel System: Upgrading the fuel pump and injectors is essential for delivering the necessary fuel for higher horsepower.
Parts Cost Breakdown
Now that we’ve identified the key components, let’s look at the costs associated with each part. Prices can vary based on brand, quality, and whether the parts are new or used.
- Engine Block: $1,500 – $3,000
- Cylinder Heads: $800 – $2,000
- Camshaft: $300 – $600
- Intake Manifold: $200 – $600
- Exhaust System: $300 – $1,200
- Fuel System: $400 – $800
In total, the parts cost for building a 400 HP A-body Mopar can range from approximately $3,600 to $8,200, depending on the choices made during the build.
Labor Costs
Labor costs can vary widely based on whether you choose to do the work yourself or hire a professional. If you’re skilled in mechanics, you can save a significant amount by tackling the project yourself.
- DIY Labor: $0 (your time and effort)
- Professional Mechanic: $75 – $150 per hour
Assuming a full build takes around 40 hours, hiring a professional could add $3,000 to $6,000 to your total cost, depending on the hourly rate.
Additional Costs to Consider
Besides parts and labor, there are additional costs that should be accounted for in your budget:
- Tools and Equipment: If you’re doing the work yourself, you may need to invest in tools, which can range from $200 to $1,000.
- Tuning and Dyno Testing: After the build, tuning is essential for optimal performance, costing around $300 to $600.
- Miscellaneous Parts: Gaskets, fluids, and other small parts can add another $200 to $500.
These additional costs can range from approximately $700 to $2,100, further increasing the overall budget.
Final Cost Summary
Putting it all together, here’s a rough estimate of the total cost to build a 400 HP A-body Mopar:
- Parts Cost: $3,600 – $8,200
- Labor Cost (DIY): $0
- Labor Cost (Professional): $3,000 – $6,000
- Additional Costs: $700 – $2,100
The estimated total cost can range from approximately $4,300 to $16,300, depending on the choices made throughout the build process.
Conclusion
Building a 400 HP A-body Mopar is an exciting project that can bring your automotive dreams to life. However, it’s essential to approach the build with a clear understanding of the costs involved. By carefully planning and budgeting, you can create a powerful vehicle that not only meets your performance goals but also fits within your financial constraints.