{"product_id":"oil-fill-adapters","title":"Oil Fill Adapters","description":"These Direct mount on valve covers to provide a new unrestricted vent portTHESE ARE NOT RECOMMENDED FOR ROAD TRACK CIRCUIT USE- GEN 3\/4 'LS' 1997+ and GEN 5 'LT' helix type GM oil cap and many Ford with one or two tabs in the valve cover.-'Holley cast LS' that use 1 5\/16\"-12 threads which is -16AN ORB (fits other popular v\/c as well such as THP, Frankenstein \u0026amp; Motion) NOT for 'sniper \/ fabricated' oil fill threads that are M32x2-Ford LARGE Helix is most 2017 and older modular Based (1-3\/8\" base), SMALL is most 2018 and newer (1-5\/16\" base).-Ford SMALL Helix and THREADED is 2pc; The valve cover adapter and a port fitting per the size chosen.-The 'Gen5 Pressure Vent' is the breather filter top with the one way action-The 'Gen4 Pressure Vent' is slightly taller with a hose clamp on the breather, same one way action-for crankcase ventilation HP ratings are: -6AN=600HP capacity, -8AN=800, -10AN=1000, and 12AN=1200HP maximum.- The pressure release adapter is the original (and still the champ) one-way breather to add 1000hp of flow capability to your existing system! (GM \/ Ford helix type only)Example Photos HEREMade in the USA!","brand":"Mighty Mouse Solutions","offers":[{"title":"Default Title","offer_id":47870575411356,"sku":"oil-fill-adapters","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0473\/3206\/5436\/files\/file_7da24689-a877-4866-b808-161f04cb08f4.jpg?v=1791702336","url":"https:\/\/daroracing.com\/products\/oil-fill-adapters","provider":"Daro Racing","version":"1.0","type":"link"}