{"product_id":"suncoast-77898e-6k-boost-valve-kit-early-style-470-dia-factory-style","title":"Suncoast Boost Valve Kit - Early Style, .470\" Dia., Factory Style","description":"\u003cp\u003e \u003c\/p\u003e\n\n\u003ch2 class=\"light\"\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cstrong\u003eEarly style, .470\" dia., OE ratio, factory style\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\n\u003cdiv class=\"accordion-content\"\u003e\n\n\u003cdiv class=\"break-out-accent break-out-accent-link\"\u003e\n\n\u003cdiv class=\"wrap\"\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003eGM 4L60-E and 4L65-E transmissions frequently have poor line rise, which can result in 3-4 clutch, 2-4 band failure or poor shift quality. The duty cycle of the EPC solenoid causes the boost sleeve to wear quickly. Oil entering the torque signal orifice leaks past the boost valve and exhausts at the Reverse orifice, resulting in poor line rise. Reverse oil can exhaust both to the sump and back through the torque signal orifice. The outside diameter of the boost sleeve also allows some leakage through the pump body, which decreases pressure rise.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cp\u003eSonnax boost valve kit 77898E-6K is a large OE ratio assembly that will restore hydraulic integrity and prevent leakage in units with early-style pumps. Drop-in Zip Valve™ parts install quickly and easily. See chart for usage details and other boost valve options.\u003c\/p\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cstrong\u003e\u003clabel for=\"components-panel\"\u003eContents:\u003c\/label\u003e\u003c\/strong\u003e\n\n\u003cdiv class=\"accordion-content\"\u003e\n\n\u003cul\u003e\n\n\u003cli\u003eSleeve\u003c\/li\u003e\n\n\u003cli\u003eValve \u003cem\u003e1 Groove, .470\" dia.\u003c\/em\u003e\n\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\n\u003cdiv class=\"break-out-grey\"\u003e\n\n\u003cdiv class=\"wrap scc\"\u003e\n\n\u003cdiv class=\"col-4\"\u003e\n\n\u003cp\u003e\u003cstrong\u003eSymptoms:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\n\u003cli\u003e3-4 Clutch failure\u003c\/li\u003e\n\n\u003cli\u003e2-4 Band failure\u003c\/li\u003e\n\n\u003cli\u003eLow line rise\u003c\/li\u003e\n\n\u003cli\u003ePoor shift quality\u003c\/li\u003e\n\n\u003c\/ul\u003e\n\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Suncoast Performance","offers":[{"title":"Default Title","offer_id":48219422261489,"sku":"77898E-6K","price":67.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/1344\/3057\/files\/Boost-Valve-Kit-Early-Style_-.470_-Dia._-Factory-Style-Suncoast-Performance-151211441.jpg?v=1779830540","url":"https:\/\/tamelessperformance.com\/products\/suncoast-77898e-6k-boost-valve-kit-early-style-470-dia-factory-style","provider":"TAMELESS PERFORMANCE","version":"1.0","type":"link"}