{"product_id":"spool-performance-b58-engine-build","title":"Spool Performance B58 Engine Build","description":"\u003ch3 data-start=\"119\" data-end=\"165\"\u003eSpool Performance B58 Engine Build Program\u003c\/h3\u003e\n\u003cp\u003e$8,910.00 is the price for labor for assembly, please email sales@spoolperformance.us for serious inquiries. DO NOT CALL.\u003c\/p\u003e\n\u003cp data-start=\"167\" data-end=\"300\"\u003eAfter careful consideration and increasing demand from our customers, we are proud to officially launch our B58 Engine Build Program.\u003c\/p\u003e\n\u003cp data-start=\"302\" data-end=\"988\"\u003eFor 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.\u003c\/p\u003e\n\u003cp data-start=\"990\" data-end=\"1550\"\u003eOur 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.\u003c\/p\u003e\n\u003cp data-start=\"1552\" data-end=\"1658\"\u003eOur primary goal is to deliver a reliable, track-proven engine capable of withstanding real-world demands.\u003c\/p\u003e\n\u003cp data-start=\"1660\" data-end=\"2029\"\u003eIt’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.\u003c\/p\u003e\n\u003ch3 data-start=\"2031\" data-end=\"2075\"\u003eStage 2 Build — Rated for up to 1200HP\u003c\/h3\u003e\n\u003cp data-start=\"2076\" data-end=\"2085\"\u003eIncludes:\u003c\/p\u003e\n\u003cul data-start=\"2086\" data-end=\"2518\"\u003e\n\u003cli data-start=\"2086\" data-end=\"2141\"\u003e\n\u003cp data-start=\"2088\" data-end=\"2141\"\u003eCP Carrillo Race Pistons with Heavy-Duty Wrist Pins\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2142\" data-end=\"2187\"\u003e\n\u003cp data-start=\"2144\" data-end=\"2187\"\u003eCP Carrillo Race Rods with Upgraded Bolts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2188\" data-end=\"2222\"\u003e\n\u003cp data-start=\"2190\" data-end=\"2222\"\u003eARP Custom Age 625+ Head Studs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2223\" data-end=\"2246\"\u003e\n\u003cp data-start=\"2225\" data-end=\"2246\"\u003eARP 2000 Main Studs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2247\" data-end=\"2292\"\u003e\n\u003cp data-start=\"2249\" data-end=\"2292\"\u003eSpool Race Rod Bearings and Main Bearings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2293\" data-end=\"2334\"\u003e\n\u003cp data-start=\"2295\" data-end=\"2334\"\u003eOEM Head Gasket with Spool Fire Rings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2335\" data-end=\"2387\"\u003e\n\u003cp data-start=\"2337\" data-end=\"2387\"\u003eUpgraded ARP Hardware (Oil Pump, Girdle, Pulley)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2388\" data-end=\"2441\"\u003e\n\u003cp data-start=\"2390\" data-end=\"2441\"\u003eCustom CNC Cylinder Head Porting and Hand Porting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2442\" data-end=\"2457\"\u003e\n\u003cp data-start=\"2444\" data-end=\"2457\"\u003eGSC S2 Cams\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2458\" data-end=\"2503\"\u003e\n\u003cp data-start=\"2460\" data-end=\"2503\"\u003eGSC Valve Springs with Titanium Retainers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2504\" data-end=\"2518\"\u003e\n\u003cp data-start=\"2506\" data-end=\"2518\"\u003eGSC Valves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"2520\" data-end=\"2564\"\u003eStage 3 Build — Rated for up to 1500HP\u003c\/h3\u003e\n\u003cp data-start=\"2565\" data-end=\"2574\"\u003eIncludes:\u003c\/p\u003e\n\u003cul data-start=\"2575\" data-end=\"3054\"\u003e\n\u003cli data-start=\"2575\" data-end=\"2638\"\u003e\n\u003cp data-start=\"2577\" data-end=\"2638\"\u003eItalian RP Platinum Line Pistons with Heavy-Duty Wrist Pins\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2639\" data-end=\"2692\"\u003e\n\u003cp data-start=\"2641\" data-end=\"2692\"\u003eItalian RP Platinum Line Rods with Upgraded Bolts\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2693\" data-end=\"2728\"\u003e\n\u003cp data-start=\"2695\" data-end=\"2728\"\u003eARP Custom Oversized Head Studs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2729\" data-end=\"2752\"\u003e\n\u003cp data-start=\"2731\" data-end=\"2752\"\u003eARP 2000 Main Studs\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2753\" data-end=\"2798\"\u003e\n\u003cp data-start=\"2755\" data-end=\"2798\"\u003eSpool Race Rod Bearings and Main Bearings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2799\" data-end=\"2840\"\u003e\n\u003cp data-start=\"2801\" data-end=\"2840\"\u003eOEM Head Gasket with Spool Fire Rings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2841\" data-end=\"2893\"\u003e\n\u003cp data-start=\"2843\" data-end=\"2893\"\u003eUpgraded ARP Hardware (Oil Pump, Girdle, Pulley)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2894\" data-end=\"2930\"\u003e\n\u003cp data-start=\"2896\" data-end=\"2930\"\u003eCustom CNC Cylinder Head Porting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2931\" data-end=\"2993\"\u003e\n\u003cp data-start=\"2933\" data-end=\"2993\"\u003eGSC S2 or S3 Cams (Selection based on customer preference)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2994\" data-end=\"3039\"\u003e\n\u003cp data-start=\"2996\" data-end=\"3039\"\u003eGSC Valve Springs with Titanium Retainers\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3040\" data-end=\"3054\"\u003e\n\u003cp data-start=\"3042\" data-end=\"3054\"\u003eGSC Valves\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"3056\" data-end=\"3081\"\u003eAdditional Options:\u003c\/h3\u003e\n\u003cp data-start=\"3082\" data-end=\"3186\"\u003eStroker kits (3.2L\/3.4L) are available.\u003c\/p\u003e\n\u003cp data-start=\"3082\" data-end=\"3186\"\u003e \u003c\/p\u003e\n\u003cp data-start=\"3082\" data-end=\"3186\"\u003e\u003cstrong\u003eplease contact \u003ca data-start=\"3136\" data-end=\"3161\" class=\"cursor-pointer\" rel=\"noopener\"\u003esales@spoolperformance.us\u003c\/a\u003e for details and pricing\u003c\/strong\u003e\u003c\/p\u003e","brand":"Spool Performance","offers":[{"title":"Default Title","offer_id":42678998892606,"sku":"SP-B58-REB","price":8910.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0631\/1123\/3598\/files\/b58enginebuild.png?v=1775581681","url":"https:\/\/turbotechperformance.com\/products\/spool-performance-b58-engine-build","provider":"TURBO TECH PERFORMANCE","version":"1.0","type":"link"}