{"product_id":"nostrum-gm-lt4-11-5mm-high-pressure-fuel-pump","title":"Nostrum GM LT4 11.5mm High Pressure Fuel Pump","description":"The Lingenfelter Nostrum 1150-250 GM LT4 High Pressure Fuel Pump is a universal high-pressure fuel pump (HPFP) core engineered for increased performance capabilities.\n\nThis pump features an 11.5mm piston and is designed to operate at a maximum rail pressure of 250 bar (25 MPa \/ 3636 PSI), providing a significantly higher sustained pressure rating compared to the production GM LT4 pump. Its key specifications include a piston diameter of 11.49 mm, a maximum piston travel of 10 mm, and a displaced flow per cam revolution of 1865.44 mm³ (with a 6 mm stroke).\n\nThe Lingenfelter Nostrum 1150-250 shares a similar physical outline to the stock GM LT4 pump (part numbers 12711668 or 12694529). However, it distinguishes itself with an AN06 male threaded low-pressure inlet, contrasting with the 3\/8\" SAE quick connect fitting found on the LT4. This AN fitting provides greater flexibility, enabling users to adapt the universal pump to their specific application requirements using industry-standard AN fitting hardware.\n\nIt is important to note that this pump is sold as a core and does not include the accessories and hardware necessary for engine installation. For complete GM LT4 service parts with associated accessories and hardware, customers should consult their local GM parts center. The Lingenfelter Nostrum 1150-250 High Pressure Fuel Pump is manufactured by Stanadyne.","brand":"Lingenfelter","offers":[{"title":"Default Title","offer_id":52686628061496,"sku":"L710180023","price":1357.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/658282365.png?v=1784875441","url":"https:\/\/store.motormia.co\/products\/nostrum-gm-lt4-11-5mm-high-pressure-fuel-pump","provider":"MOTORMIA","version":"1.0","type":"link"}