{"product_id":"vw-1-25-ratio-forged-rocker-arms-bolt-on-horsepower-upgrade-21-2312-0","title":"VW 1.25 Ratio Forged Rocker Arms - Bolt-On Horsepower Upgrade - 21-2312-0","description":"\u003cp data-path-to-node=\"0\"\u003eOne of the most cost-effective ways to wake up a stock or mild air-cooled engine is to increase the valve lift without the labor of a full camshaft swap. These forged rockers are the \"bolt-on horsepower\" solution for the weekend mechanic, providing a noticeable bump in mid-range pull and top-end breathing while maintaining your engine's drivability.\u003c\/p\u003e\n\u003chr data-path-to-node=\"1\"\u003e\n\u003ch2 data-path-to-node=\"2\"\u003e\u003cb data-path-to-node=\"2\" data-index-in-node=\"0\"\u003e1.25 Ratio Forged Rocker Arm Set – High-Lift Performance Upgrade\u003c\/b\u003e\u003c\/h2\u003e\n\u003cp data-path-to-node=\"3\"\u003eUnlock more power and improved acceleration from your Volkswagen engine with this high-precision 1.25 ratio rocker arm set. Designed to replace your factory 1.1:1 rockers, these 1.25 units increase total valve lift by approximately 13%, allowing your engine to pull in more air and fuel for better combustion and exhaust scavenging.\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eForged from high-grade steel for maximum strength and durability, these rockers are engineered to withstand higher RPMs and increased valvetrain stress. Because they do not change the duration of your camshaft, you get the benefit of increased lift without sacrificing bottom-end torque or smooth idling. This makes them a perfect upgrade for street-driven Beetles, Buses, and Ghis still running stock or mild carburetors.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"5\"\u003e\u003cb data-path-to-node=\"5\" data-index-in-node=\"0\"\u003eProduct Specifications \u0026amp; Features\u003c\/b\u003e\u003c\/h3\u003e\n\u003cul data-path-to-node=\"6\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,0,0\"\u003e\u003cb data-path-to-node=\"6,0,0\" data-index-in-node=\"0\"\u003eRatio:\u003c\/b\u003e 1.25:1 (Increases valve lift over stock 1.1:1).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,1,0\"\u003e\u003cb data-path-to-node=\"6,1,0\" data-index-in-node=\"0\"\u003eConstruction:\u003c\/b\u003e Forged Steel for superior structural integrity and wear resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,2,0\"\u003e\u003cb data-path-to-node=\"6,2,0\" data-index-in-node=\"0\"\u003eCompatibility:\u003c\/b\u003e Designed to work with stock rocker shafts, pushrods, and adjusters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,3,0\"\u003e\u003cb data-path-to-node=\"6,3,0\" data-index-in-node=\"0\"\u003eInstallation:\u003c\/b\u003e True bolt-on upgrade; no machining or case splitting required.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"6,4,0\"\u003e\u003cb data-path-to-node=\"6,4,0\" data-index-in-node=\"0\"\u003eVersatility:\u003c\/b\u003e Compatible with stock carburetors and ignition systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"7\"\u003e\u003cb data-path-to-node=\"7\" data-index-in-node=\"0\"\u003eVehicle \u0026amp; Engine Fitment\u003c\/b\u003e\u003c\/h3\u003e\n\u003cp data-path-to-node=\"8\"\u003eFits all upright air-cooled Type 1 based engines:\u003c\/p\u003e\n\u003cul data-path-to-node=\"9\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,0,0\"\u003e\u003cb data-path-to-node=\"9,0,0\" data-index-in-node=\"0\"\u003eEngine Displacement:\u003c\/b\u003e 1200cc, 1300cc, 1500cc, and 1600cc.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,1,0\"\u003e\u003cb data-path-to-node=\"9,1,0\" data-index-in-node=\"0\"\u003eVW Type 1:\u003c\/b\u003e Beetle, Karmann Ghia, Thing (1954–1979).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,2,0\"\u003e\u003cb data-path-to-node=\"9,2,0\" data-index-in-node=\"0\"\u003eVW Type 2:\u003c\/b\u003e Bus \/ Transporter (up to 1971).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"9,3,0\"\u003e\u003cb data-path-to-node=\"9,3,0\" data-index-in-node=\"0\"\u003eVW Type 3:\u003c\/b\u003e Notchback, Squareback, Fastback (1962–1973).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cblockquote data-path-to-node=\"10\"\u003e\n\u003cp data-path-to-node=\"10,0\"\u003e\u003cb data-path-to-node=\"10,0\" data-index-in-node=\"0\"\u003eTech Tip:\u003c\/b\u003e While these work with stock hardware, we highly recommend pairing them with a set of \u003cb data-path-to-node=\"10,0\" data-index-in-node=\"95\"\u003eSwivel Foot Adjusters\u003c\/b\u003e and \u003cb data-path-to-node=\"10,0\" data-index-in-node=\"121\"\u003eBolt-On Rocker Shafts\u003c\/b\u003e to maximize reliability and simplify valve adjustments. Always check your valve-to-piston clearance and coil bind when increasing lift.\u003c\/p\u003e\n\u003c\/blockquote\u003e","brand":"EMPI","offers":[{"title":"Default Title","offer_id":44888991760499,"sku":null,"price":145.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/2760\/1523\/files\/21-2312-0-500x237_bcc99702-24d4-4ea9-8caa-6eb3a76788f1.jpg?v=1776928033","url":"https:\/\/shop.washburnsmetal.com\/products\/vw-1-25-ratio-forged-rocker-arms-bolt-on-horsepower-upgrade-21-2312-0","provider":"Washburn's Metal","version":"1.0","type":"link"}