Spool Performance B58 Engine Build
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Spool Performance B58 Engine Build Program
$8,910.00 is the price for labor for assembly, please email sales@spoolperformance.us for serious inquiries. DO NOT CALL.
After careful consideration and increasing demand from our customers, we are proud to officially launch our B58 Engine Build Program.
For years, we refrained from offering engine build services publicly due to market conditions where pricing often came at the cost of quality and reliability. Our focus has always been on delivering products and services that meet the high standards our customers expect, rather than competing on price alone. Over time, many of our clients—particularly those running our components on BMW, Mercedes, McLaren, and Audi platforms—began requesting complete engine solutions built to the same level of precision and durability. After privately supporting several B58 engine builds for customers who experienced failures elsewhere, we’ve decided to make this service available more broadly.
Our program begins with a Stage 2 build, as we believe this is the minimum level that aligns with the performance potential of the B58 platform. We’ve observed an increasing trend of head gasket and fastener-related failures at higher boost levels, especially with factory and ARP 2000 hardware. As the B58 aftermarket has evolved, 800–1000+ WHP builds have become more common, and supporting that level of power requires thoughtful component selection and attention to detail—not just making power, but ensuring durability under sustained high-load operation.
Our primary goal is to deliver a reliable, track-proven engine capable of withstanding real-world demands.
It’s important to understand that built engines, by their nature, are high-performance components subjected to greater stress than factory engines. While they are engineered to handle more power and abuse, they are not maintenance-free and will require periodic service or refreshes based on usage. Proper care, tuning, and maintenance are critical to engine longevity.
Stage 2 Build — Rated for up to 1200HP
Includes:
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CP Carrillo Race Pistons with Heavy-Duty Wrist Pins
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CP Carrillo Race Rods with Upgraded Bolts
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ARP Custom Age 625+ Head Studs
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ARP 2000 Main Studs
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Spool Race Rod Bearings and Main Bearings
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OEM Head Gasket with Spool Fire Rings
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Upgraded ARP Hardware (Oil Pump, Girdle, Pulley)
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Custom CNC Cylinder Head Porting and Hand Porting
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GSC S2 Cams
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GSC Valve Springs with Titanium Retainers
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GSC Valves
Stage 3 Build — Rated for up to 1500HP
Includes:
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Italian RP Platinum Line Pistons with Heavy-Duty Wrist Pins
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Italian RP Platinum Line Rods with Upgraded Bolts
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ARP Custom Oversized Head Studs
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ARP 2000 Main Studs
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Spool Race Rod Bearings and Main Bearings
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OEM Head Gasket with Spool Fire Rings
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Upgraded ARP Hardware (Oil Pump, Girdle, Pulley)
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Custom CNC Cylinder Head Porting
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GSC S2 or S3 Cams (Selection based on customer preference)
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GSC Valve Springs with Titanium Retainers
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GSC Valves
Additional Options:
Stroker kits (3.2L/3.4L) are available.
please contact sales@spoolperformance.us for details and pricing
Shipping Methods
At OEM Car Parts USA, we are committed to ensuring that your orders reach you quickly and safely. To provide you with reliable delivery options, we use trusted carriers including UPS, USPS, and FedEx.
Shipping Times
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Standard Shipping: Most orders are processed and shipped within 1-2 business days. Delivery times vary based on your location, but you can generally expect to receive your order within 3-7 business days after it has been shipped.
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Expedited Shipping: If you need your parts faster, we offer expedited shipping options. Depending on your choice, delivery times can range from 1-3 business days. Expedited shipping rates will be calculated at checkout.
Shipping Costs
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Standard Shipping: Enjoy free standard shipping on all orders within the United States. We believe in providing value to our customers without additional shipping costs.
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Expedited Shipping: The cost for expedited shipping will be calculated based on the weight of your order and your delivery location. You will be able to review the shipping cost before finalizing your purchase.
Order Processing
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Order Confirmation: After placing your order, you will receive a confirmation email with your order details and tracking number.
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Tracking Your Order: Once your order has shipped, you will receive an email with a tracking number and a link to track your shipment through UPS, USPS, or FedEx. You can use this information to monitor your order’s progress until it arrives.
Shipping Restrictions
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Delivery Locations: We currently ship to addresses within the United States. Unfortunately, we do not offer international shipping at this time.
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P.O. Box Addresses: For security reasons, we recommend providing a physical address for delivery. While we can ship to P.O. Box addresses, please note that some shipping carriers may have limitations or additional processing times.
Missing or Damaged Orders
If your order is missing or arrives damaged, please contact our customer service team at info@oemcarpartsus.com or call us at +1 (934) 201-2903 within 5 business days of receiving your shipment. We will work promptly to resolve any issues and ensure your satisfaction.
Contact Us
For any questions or further assistance regarding shipping, please don’t hesitate to reach out to us:
- Email: info@oemcarpartsus.com
- Phone: +1 (934) 201-2903
We are here to ensure a smooth and enjoyable shopping experience. Thank you for choosing OEM Car Parts USA!
Frequently Asked Questions (FAQs)
Are OEM products more expensive than aftermarket alternatives?
OEM products might have a higher upfront cost compared to aftermarket parts, but their superior quality and durability often make them a more cost-effective choice over time. Investing in OEM ensures you’re getting parts specifically designed for your vehicle, which can lead to better performance and longevity.
Can I purchase OEM parts online or do I need to visit a dealership?
You don’t need to visit a dealership to get OEM parts. You can conveniently purchase genuine OEM components from authorized distributors and reputable online retailers like OEM Car Parts USA. Our online store provides a wide selection of high-quality parts delivered straight to your door.
Are parts from brands like Mopar, ACDelco, and Motorcraft interchangeable between different vehicle brands?
No, parts from Mopar, ACDelco, and Motorcraft are typically designed for specific vehicle brands. It’s crucial to ensure compatibility with your vehicle’s make and model by checking part numbers and consulting with a knowledgeable expert.
Can I install OEM parts myself, or is it better to have a professional handle it?
While some OEM parts can be installed by DIY enthusiasts, the complexity of installation can vary. For the best results and to ensure proper fitment and performance, we recommend having a trained mechanic install the parts, especially if you’re unfamiliar with automotive repairs.
Do OEM parts come with a warranty?
Yes, many OEM auto parts come with a manufacturer’s warranty that covers defects or issues. Be sure to check the warranty details for each part at the time of purchase, and keep your receipt for any potential warranty claims.
How can I verify that I’m buying genuine OEM parts and avoid counterfeits?
To ensure you’re purchasing genuine OEM parts, look for official logos and part numbers on the packaging. Always buy from authorized dealers or well-established online retailers like OEM Car Parts USA. This helps guarantee that you’re getting authentic parts that meet the highest standards.