{"product_id":"1-25-1-ratio-forged-rocker-arms-set","title":"1.25:1 Ratio Forged Rocker Arms Set","description":"The EMPI 1.25 Ratio Rocker Arm Set is a cost-effective performance upgrade for air-cooled Volkswagen engines, often called the \"poor man's cam\" by engine builders.\n\nBy increasing the rocker ratio from the stock 1.1:1 to 1.25:1, these rocker arms effectively increase valve lift by approximately 14 percent. This enhancement allows for significantly improved volumetric efficiency, enabling the engine to breathe deeper on intake and scavenge more effectively on exhaust strokes. The result is a noticeable boost in mid-range torque and top-end horsepower without sacrificing smooth idle or low-end drivability.\n\nThey are compatible with stock carburetors and heat exchangers, maintaining reliability. Each rocker is precision-manufactured from high-strength forged steel for durability and consistent geometry across all eight valves.\n\nThis set is specifically designed for Type 1 based air-cooled engines ranging from 1200cc to 1600cc+. Fitment includes Volkswagen Beetle (1961-1977), Karmann Ghia (1961-1974), Bus\/Type 2 (1961-1971), Type 3 models (1962-1973), Thing (1973-1974), and custom applications like Dune Buggies, Sand Rails, and Trikes utilizing Type 1 VW engine cases.","brand":"EMPI","offers":[{"title":"Default Title","offer_id":52686715060536,"sku":"21-2312-0","price":64.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/662144900.webp?v=1784876135","url":"https:\/\/store.motormia.co\/products\/1-25-1-ratio-forged-rocker-arms-set","provider":"MOTORMIA","version":"1.0","type":"link"}