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Not sure which one? Ask us to confirm fitment first →For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. Outside the UK, shipping is shown at checkout and local customs and taxes remain your responsibility.
Some products are made to order, imported or custom built. If timing matters, contact us before ordering and we will confirm the expected delivery timeframe.
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| Manufacturer | Nostrum High Performance |
|---|---|
| Product Type | High pressure fuel pump kit |
| SKU | H086-2061 |
| Pump Code | 1150-250 Big Bore |
| Vehicle Application | Ford Edge ST / Lincoln Nautilus 2.7L EcoBoost |
| Flow Increase | 46% over the standard pump |
| Geometric Displacement | 1869 ccm per cam revolution |
| Maximum Operating Pressure | 250 bar / 25 MPa / 3625 psi |
| Fuel Compatibility | Ethanol compatible, E30 through E85 |
| Tuning Platforms | HP Tuners; SCT coming |
| Interchange Part Numbers | KT4Z-9350-B / JT4E-9D376-AC |
| Warranty | Nostrum limited lifetime |
Big Bore is the larger pump body in Nostrum's 2.7 EcoBoost ladder, for Edge ST and Lincoln Nautilus owners who have stopped asking polite questions of the engine. It moves 46% more fuel than the original pump, displaces 1869 ccm per cam revolution and works to 250 bar, so it holds rail pressure on straight E85 at boost levels that leave a standard pump nowhere to go. Nostrum quotes it as good for up to 829 whp on petrol or 672 whp on E85 once turbo, calibration and supporting hardware are all there. It also plumbs differently to the smaller pump: the 1150-250 has an integrated AN06 fitting and comes with AN adapters and a 3/8 quick-connect male AN fitting for an upgraded feed.
The two 2.7 pumps answer different questions. The 1050-250 Standard Bore Plus, at 22% over stock, is the sensible ethanol conversion for a car keeping its factory turbo. Big Bore is aimed at a 2.7 pushed further: a bigger turbo, a built bottom end, or a car that lives on E85 all year. If your build plan already includes turbo work, buying Big Bore first saves fitting a pump twice.
| Years | Model | Engine |
|---|---|---|
| 2019+ | Ford Edge ST | 2.7L EcoBoost |
| 2019+ | Lincoln Nautilus Black Label / Reserve | 2.7L EcoBoost |
| Manufacturer | Nostrum High Performance |
|---|---|
| Product Type | High pressure fuel pump kit |
| SKU | H086-2061 |
| Pump Code | 1150-250 Big Bore |
| Vehicle Application | Ford Edge ST / Lincoln Nautilus 2.7L EcoBoost |
| Flow Increase | 46% over the standard pump |
| Geometric Displacement | 1869 ccm per cam revolution |
| Maximum Operating Pressure | 250 bar / 25 MPa / 3625 psi |
| Fuel Compatibility | Ethanol compatible, E30 through E85 |
| Tuning Platforms | HP Tuners; SCT coming |
| Interchange Part Numbers | KT4Z-9350-B / JT4E-9D376-AC |
| Warranty | Nostrum limited lifetime |
Not harmful, but the smaller 1050-250 Standard Bore Plus kit is the better match for a factory-turbo 2.7 on an ethanol map. Big Bore earns its place once boost, turbo or engine internals have moved on.
A pump this size gives the nozzles somewhere to go, so most cars at this level pair it with an upgraded injector set. The matched route is the Edge ST Stage 3 bundle, which combines this pump kit with the Stage 2 six-injector set.
It gives the pump an AN feed connection rather than only the factory quick-connect, which suits cars with an uprated lift pump or reworked low-pressure side. Adapters back to a 3/8 quick-connect are supplied if you keep the standard feed.
For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. For customers outside the UK, local customs and taxes remain your responsibility, and shipping is shown at checkout. If a shipping option is not available, email us and we will prepare a tailored quote.
Many of the products we sell are made to order, imported or custom built, so a lead time may apply. If you need a part urgently, contact us before ordering and we will confirm the expected delivery timeframe and process.
Model year, engine, drivetrain, hardware and existing modifications can all change what fits. Check the applications and supplier notes above, or send us your exact vehicle and setup before ordering.
Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.
