Boundary BP-S2-SNC Stage 2 Oil Pump for Mazda/Ford BP 1.6 L (Short-Nose Crank)

Vehicle Fitment

• Mazda / Ford - BP-series 1.6 L I4 (short-nose crank)
• Specifically for Mazda Miata (1989-1991.5) with 36 mm SNC (short nose crank)
• Compatible with BP I4 engines in Ford Escort (early model BP) where the crank snout matches

Features

• Stage 2 high-flow oil pump design for enhanced flow and oil pressure
• Billet gear set for superior strength and longevity
• Deeper pocket in the pump housing to accommodate larger gears
• Increased mid-range oil pressure for improved lubrication under load
• Shimmed to raise maximum warm oil pressure (from standard to ~70 PSI)
• Precision-machined housing and internals for tight tolerances
• Stainless Torx fasteners for reliability and durability
• Quality assembly: all parts cleaned, inspected, de-burred, and sealed

Specifications

• Part Number: BP-S2-SNC
• Engine: BP-series 1.6 L I4 (short-nose crank)
• Pressure Rating: ~70 PSI (warm, shimmed)
• Flow Design: High-flow Stage II
• Housing Material: Improved billet or upgraded casting (depending on model)
• Gear Material: Billet steel gears
• Intended Use: Street / Track - performance / high RPM
• Weight: ~3 lb (assembled) per manufacturer spec

Included Components

• 1x Assembled Oil Pump (Stage II) - BP-S2-SNC
• 1x Billet Gear Set (internal) included in pump
• Fasteners and internal hardware (pre-assembled)

Product Description

The **Boundary BP-S2-SNC** is a Stage II high-flow oil pump assembly designed specifically for the Mazda/Ford BP 1.6 L I4 engine with a short-nose crank (SNC). Built to handle performance driving and high-stress conditions, this pump improves oil delivery throughout the RPM range by using a deeper pump cavity and larger, stronger billet gears.

By increasing the maximum warm oil pressure (shimmed to ~70 PSI) and enhancing mid-range pressure, this pump offers better lubrication under load, particularly for modified or high-revving BP engines. With precision assembly, durable materials, and reliable construction, it is a top upgrade for street, track, or motorsport applications in early Miata and Escort BP configurations.