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Atomic Barra Big Ears Sump Front B-Series & Rear F-Series Sump
+2.5L Capacity | Standard Depth | Baffled Wet Sump Solution
Serious Oil Control
When building a high-performance Ford Barra engine, oil control is essential. The factory sump is often the limiting factor in sustaining oil pressure during hard cornering or aggressive acceleration causing the oil pump to starve. The Atomic Big Ears Sump Upgrade boosts oil capacity and improves control without compromising ground clearance — making it the perfect solution for serious street, drag, and circuit builds.
💡 DID YOU KNOW?
Capacity equals safety. By increasing the total oil volume by approximately 2.5 Litres and slowing it's flow in and out of the baffles during cornering, you significantly reduce the risk of the pickup running dry during high-G manoeuvres. More oil also means better thermal management, keeping your bearing temperatures stable during extended dyno runs or track sessions.
The Atomic Solution
We designed the Big Ears Sump to be a "No Compromise" upgrade. It features substantial "wings" to increase volume while maintaining the standard sump depth, ensuring you retain OEM ground clearance for street driving. Inside, it features baffling to control surge, making it a drop-in wet sump solution for engines producing anywhere from 400kW to over 1000hp.
High Capacity. Standard Clearance.
Internal baffling controls oil movement.
Technical Specifications
Feature
Specification
Application
Ford Barra DOHC 6-Cyl (BA-FGX)
Capacity Increase
Approx. +2.5 Litres over stock
Depth
Standard (OEM Ground Clearance)
Oil System
Wet Sump (Factory Pump Compatible)
External Pumps
Optional pickup tube available for external wet sump pumps
Proven Power
400kW to 1000hp+
Key Features
Massive Capacity
Increases system volume by ~2.5L for superior oil supply safety margin.
OEM Clearance
Retains standard sump depth, preventing damage on speed bumps or lowered cars.
Surge Control
Internal baffling helps keep oil around the pickup during hard acceleration and cornering.
⚠️ Important Fitment Note: 16mm Girdles
If you are installing this sump on an engine fitted with an Atomic 16mm Main Girdle, modifications are required due to the increased height of the main stud nuts.
Issue: The rear four main stud nuts will typically contact the sump floor.
Solution: You must drill clearance holes in the sump floor and weld in alloy cups to cover them.
Reference: Please see the 3D model in the product images for the exact location of these clearance cups. This modification ensures correct fitment and oil-tight sealing.
