{"product_id":"f2-performance-supply-7-inch-billet-crank-pulley-air-cooled-vw-type-1","title":"F2 Performance Supply 7\" Billet Crank Pulley | Air-Cooled VW Type 1 | 6061 Anodized, Laser-Etched Timing Marks","description":"\u003ch2\u003e\u003cb\u003eF2 Performance Supply 7\" Billet Crank Pulley | Air-Cooled VW Type 1\u003c\/b\u003e\u003c\/h2\u003e\u003cp\u003e\u003cb\u003eA 7-inch billet crank pulley built the way the classic Auto-Craft pulleys were, with the materials and machining available now.\u003c\/b\u003e F2 Performance Supply designed this one with the enthusiast in mind and cut no corners on design, performance or durability — 6061-T6511 aluminum, black anodized, spinning on a heat-treated 4340 alloy steel hub.\u003c\/p\u003e\u003cp\u003eThe detail you will appreciate every time the engine is out: \u003cb\u003e360 degrees of laser-etched timing marks\u003c\/b\u003e around the circumference, with the F2 logo at TDC. No guessing, no taping a protractor to the case, no squinting at a single notch. Setting timing and degreeing a cam both get faster.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eTwo Hub Versions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFactory Hub\u003c\/b\u003e — drops in as a direct replacement for a stock pulley.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSand Sealed Hub\u003c\/b\u003e — for off-road and dusty environments, sealing the crank snout against grit.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003eImportant:\u003c\/b\u003e the sand-sealed version \u003cb\u003erequires additional machining to the engine case\u003c\/b\u003e to accept the #17231 SKF seal. Plan for that work before you order it.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eARP Hardware, Your Choice of Finish\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eEvery pulley ships with ARP bolts — pick \u003cb\u003eBlack Oxide\u003c\/b\u003e or \u003cb\u003eStainless Steel\u003c\/b\u003e to match the rest of your engine hardware.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eTechnical Specifications\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eDiameter:\u003c\/b\u003e 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePulley Material:\u003c\/b\u003e 6061-T6511 aluminum, black anodized finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHub Material:\u003c\/b\u003e 4340 heat-treated alloy steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTiming Marks:\u003c\/b\u003e 360-degree laser etched\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHardware:\u003c\/b\u003e ARP, black oxide or stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHub Styles:\u003c\/b\u003e Factory or sand sealed\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSeal (sand-sealed version):\u003c\/b\u003e SKF #17231 — case machining required\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePart Numbers:\u003c\/b\u003e FF-70010BL, FF-70010SS, FF-70020BL, FF-70020SS\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBrand:\u003c\/b\u003e F2 Performance Supply\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cb\u003eFrequently Asked Questions\u003c\/b\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eWhich hub do I need?\u003c\/b\u003e Factory hub for a normal street engine — it replaces the stock pulley directly. Sand sealed if you run dust, sand or off-road, and are prepared to have the case machined.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhat machining does the sand-sealed version need?\u003c\/b\u003e The case has to be cut to accept the #17231 SKF seal. This is not a bolt-on; have it done by a machinist familiar with air-cooled VW cases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eIs the SKF seal included?\u003c\/b\u003e The listing does not include the seal — source the #17231 alongside the machining work.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eDoes bolt finish change anything mechanically?\u003c\/b\u003e No. Black oxide and stainless ARP bolts are a cosmetic choice at the same price.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWhy 7 inches?\u003c\/b\u003e A stock-diameter pulley keeps accessory speeds where the factory intended. The 7\" size follows the classic Auto-Craft pattern this pulley takes its inspiration from.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAre the timing marks readable with the engine in the car?\u003c\/b\u003e They run the full 360 degrees of the pulley edge with the F2 logo at TDC, so there is a mark in view regardless of where the engine stops.\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003e\u003cb\u003eExplore Related Categories\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eBrowse \u003ca href=\"\/collections\/engine\"\u003eEngine\u003c\/a\u003e for pulleys, hubs, bolts and the rest of the front-of-engine hardware.\u003c\/p\u003e\u003ch3\u003e\u003cb\u003eQuestions Before You Buy?\u003c\/b\u003e\u003c\/h3\u003e\u003cp\u003eWe build and sell air-cooled VW parts out of Orange, California. If you are unsure whether your case is already cut for a sand seal, contact us before ordering and we can talk you through how to check.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e⚠ WARNING (California Proposition 65):\u003c\/strong\u003e This product can expose you to chemicals which are known to the State of California to cause cancer and reproductive harm. For more information, go to \u003ca href=\"https:\/\/www.p65warnings.ca.gov\"\u003ewww.P65Warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"F2 Performance Supply","offers":[{"title":"Factory \/ Black Oxide","offer_id":45473859436659,"sku":"FF-70010BL","price":204.95,"currency_code":"USD","in_stock":true},{"title":"Factory \/ Stainless Steel","offer_id":45473859469427,"sku":"FF-70010SS","price":204.95,"currency_code":"USD","in_stock":true},{"title":"Sand Sealed \/ Black Oxide","offer_id":45473859502195,"sku":"FF-70020BL","price":224.95,"currency_code":"USD","in_stock":true},{"title":"Sand Sealed \/ Stainless Steel","offer_id":45473859534963,"sku":"FF-70020SS","price":224.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/f2-vw-7-inch-billet-crank-pulley-01-face-timing-marks.webp?v=1789097654","url":"https:\/\/www.washburnsmetal.com\/products\/f2-performance-supply-7-inch-billet-crank-pulley-air-cooled-vw-type-1","provider":"Washburn's Metal","version":"1.0","type":"link"}