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World Record Breaking Cylinder heads and Crate Engines, machined and built here in Virginia

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    Perfect Circle Engines
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    • PRO R Stage 3

      PRO R Stage 3

      PRO R Stage 3

      No reviews
      Regular price From $10,999.00 USD
      Regular price Sale price From $10,999.00 USD
      Unit price /  per 
    • PRO R Stage 3 N/A Cams

      PRO R Stage 3 N/A Cams

      PRO R Stage 3 N/A Cams

      No reviews
      Regular price From $799.00 USD
      Regular price Sale price From $799.00 USD
      Unit price /  per 
    • PRO R Stage 3 Turbo Cams

      PRO R Stage 3 Turbo Cams

      PRO R Stage 3 Turbo Cams

      No reviews
      Regular price From $799.00 USD
      Regular price Sale price From $799.00 USD
      Unit price /  per 
    • RZR ARP 625+ Head Stud Kit

      RZR ARP 625+ Head Stud Kit

      RZR ARP 625+ Head Stud Kit

      No reviews
      Regular price $342.45 USD
      Regular price Sale price $342.45 USD
      Unit price /  per 
    • RZR ARP Main Stud Kit

      RZR ARP Main Stud Kit

      RZR ARP Main Stud Kit

      No reviews
      Regular price $178.92 USD
      Regular price Sale price $178.92 USD
      Unit price /  per 
    • RZR Stage 1 Engine

      RZR Stage 1 Engine

      RZR Stage 1 Engine

      No reviews
      Regular price From $4,275.00 USD
      Regular price Sale price From $4,275.00 USD
      Unit price /  per 
    • RZR Stage 2 Engine

      RZR Stage 2 Engine

      RZR Stage 2 Engine

      No reviews
      Regular price From $4,975.00 USD
      Regular price Sale price From $4,975.00 USD
      Unit price /  per 
    • RZR Stage 3 Engine

      RZR Stage 3 Engine

      RZR Stage 3 Engine

      No reviews
      Regular price From $7,750.00 USD
      Regular price Sale price From $7,750.00 USD
      Unit price /  per 
    • RZR Stage 4 Engine

      RZR Stage 4 Engine

      RZR Stage 4 Engine

      No reviews
      Regular price From $9,899.00 USD
      Regular price Sale price From $9,899.00 USD
      Unit price /  per 
    • Short Sleeve T-Shirt

      Short Sleeve T-Shirt

      Short Sleeve T-Shirt

      Regular price From $30.00 USD
      Regular price Sale price From $30.00 USD
      Unit price /  per 
    • Slip on Stainless Steel Exhaust - KRX 1000

      Slip on Stainless Steel Exhaust - KRX 1000

      Slip on Stainless Steel Exhaust - KRX 1000

      No reviews
      Regular price $599.95 USD
      Regular price Sale price $599.95 USD
      Unit price /  per 
    • SR20 Sleeved Block

      SR20 Sleeved Block

      Sale

      SR20 Sleeved Block

      No reviews
      Regular price From $1,399.00 USD
      Regular price $1,499.00 USD Sale price From $1,399.00 USD
      Unit price /  per 
      Sale
    • SRT-4 CNC Porting

      SRT-4 CNC Porting

      SRT-4 CNC Porting

      No reviews
      Regular price From $750.00 USD
      Regular price Sale price From $750.00 USD
      Unit price /  per 
    • SRT4 Bedplate Machining

      SRT4 Bedplate Machining

      SRT4 Bedplate Machining

      No reviews
      Regular price From $220.00 USD
      Regular price Sale price From $220.00 USD
      Unit price /  per 
    • SRT4 Main Strap Kit

      SRT4 Main Strap Kit

      SRT4 Main Strap Kit

      No reviews
      Regular price $599.99 USD
      Regular price Sale price $599.99 USD
      Unit price /  per 
    • Stage 2 RZR Head

      Stage 2 RZR Head

      Stage 2 RZR Head

      No reviews
      Regular price From $1,199.00 USD
      Regular price Sale price From $1,199.00 USD
      Unit price /  per 
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    1 Year/1000 Mile Warranty:

    Warranty Info

    SXS/UTV Engines Only*

    Shipping/ CORE Info



    1. Contact our customer service: Reach out to our customer service team via phone, email, or online form to initiate the process. They will provide you with detailed instructions and address any questions or concerns you may have.

    2. Prepare the cylinder head and engine core: Clean the cylinder head and engine core thoroughly, removing any excess oil, dirt, or debris. Ensure all parts are properly packaged and protected to prevent damage during transit. Avoid using packing peanuts, as they can be messy and potentially harmful to the environment.

    3. Document and label: Take clear photographs of the cylinder head and engine core from various angles before packaging them. This documentation will serve as a reference for both you and our team. Label each package clearly with your name, contact information, and any unique identifiers provided by our customer service team.

    4. Secure packaging: Place the cylinder head and engine core in separate sturdy boxes or containers. Use appropriate packing materials such as foam, bubble wrap, or other protective cushioning. Ensure the packaging is secure and well-sealed.

    5. Arrange shipping: If you're sending complete engines, we can help arrange freight shipping with liftgate services for your convenience. Contact our customer service team to discuss the details and provide them with the necessary information. They will assist you in scheduling the freight shipment.

    6. Share tracking information: Inform our customer service team about the shipping carrier, tracking number, and expected delivery date. This allows us to anticipate the arrival of your cylinder head and engine core and streamline the processing time.

    7. Await confirmation: Once your shipment arrives at our facility, our team will inspect and confirm the condition of the cylinder head and engine core. We will notify you of their arrival and provide updates throughout the evaluation and servicing process.

    Remember to follow any specific instructions provided by our customer service team and communicate any specific shipping requirements or preferences. We're here to assist you throughout the process and ensure a smooth and efficient experience.

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