{"product_id":"spec-gm-f40-aluminum-flywheel","title":"Spec GM F40 Aluminum Flywheel","description":"\u003cp class=\"p1\"\u003e\u003cstrong\u003eSKU\u003c\/strong\u003e: CSCLS4AF40\u003c\/p\u003e\n\u003ch4 class=\"p1\"\u003e\u003cb\u003eSPEC GM F40 Aluminum Flywheel for LS4 Engine Swaps\u003c\/b\u003e\u003c\/h4\u003e\n\u003cp class=\"p1\"\u003eThe SPEC GM F40 Aluminum Flywheel, a precision-crafted component that delivers consistent power transfer and rapid engine response in high-performance builds. Built from high-grade billet aluminum, this flywheel minimizes rotational inertia to enable quicker acceleration and sharper shifts, making it the reliable option for enthusiasts tackling road courses, drag strips, drift events, or daily-driven swaps. Compared to standard steel flywheels, the SCLS4AF40 cuts weight while maintaining structural integrity under extreme loads, ensuring smoother operation and longer component life across demanding applications.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eKey Features and Performance Advantages\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eLightweight Billet Aluminum Construction\u003c\/b\u003e: Reduces overall drivetrain mass for faster rev-matching and enhanced throttle feel, ideal for modified setups where every ounce counts.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003e.001-Inch Machining Tolerance\u003c\/b\u003e: Guarantees a perfectly flat clutch seating surface and flawless balance, promoting even wear and vibration-free performance.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eDiamond-Ground Friction Surface\u003c\/b\u003e: Provides secure clutch engagement without slippage, even in high-torque scenarios.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eSFI-Certified Design\u003c\/b\u003e: Meets rigorous safety standards for racing and street use, with proven durability in autocross, pulling, and rally conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eThis flywheel stands out in LS4 swap projects by pairing seamlessly with the GM F40 6-speed transmission, offering a direct bolt-on solution that outperforms heavier alternatives in responsiveness and efficiency. Racers and builders choose the SCLS4AF40 for its track-tested reliability and ability to handle increased horsepower without compromise.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eVehicle Fitment Details\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe SCLS4AF40 is designed specifically for custom engine swaps requiring adapted components. Compatible applications include:\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eGM LS4 Engines (5.3L V8)\u003c\/b\u003e: 1999-2024 models, including those from Chevrolet Trailblazer SS, GMC Envoy Denali, Saab 9-7X Aero, and Isuzu Ascender, when mated to:\u003c\/li\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eG6 F40 6-speed gearbox (found in Pontiac Solstice GXP, Saturn Sky, or similar GM platforms).\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eSaab F40 6-speed gearbox (from Saab 9-2X, 9-3 models).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eRequires custom bellhousing, starter, and pilot bearing adaptations for recessed flywheel installations in non-stock configurations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eVerify exact compatibility with your build via the manufacturer's application guide, as this flywheel supports a range of GM V8 swaps to F40 transmissions.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eWhat's Included in Your Purchase\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eOne (1) SPEC SCLS4AF40 billet aluminum flywheel.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eIntegrated diamond-ground friction plate surface.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eSelf-locking fasteners for secure installation.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003eComprehensive installation instructions (digital download available upon request).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003ePart Number\u003c\/b\u003e: SCLS4AF40\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eShipping and Packaging Information\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003ePart Weight\u003c\/b\u003e: Approximately 18-22 lbs.\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\n\u003cspan class=\"s1\"\u003e\u003c\/span\u003e\u003cb\u003eShipping Box Dimensions\u003c\/b\u003e: 14\" x 14\" x 6\".\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p1\"\u003eUpgrade your LS4-to-F40 swap with the SCLS4AF40 order today for immediate gains in drivability and power delivery. Backed by SPEC Clutch's reputation for quality components trusted by professionals worldwide.\u003c\/p\u003e","brand":"SPEC","offers":[{"title":"Default Title","offer_id":43581155967055,"sku":"SPECSCLS4AF40","price":477.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1062\/7920\/files\/SKU_CSCLS4AF40.png?v=1757943536","url":"https:\/\/www.blackopsautoworks.com\/products\/spec-gm-f40-aluminum-flywheel","provider":"Black Ops Auto Works","version":"1.0","type":"link"}