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Why Does My BluePrint Engine Use Priority Main Oiling?
Many customers ask what Priority Main Oiling is and why it is considered a desirable feature in performance engine blocks. Priority Main Oiling is a design feature commonly found in performance and racing engine blocks because it helps ensure critical engine components receive oil before less critical systems.
What Is Priority Main Oiling?
Priority Main Oiling is an oiling system design that routes oil to the:
- Main bearings
- Crankshaft
before supplying oil to the:
- Camshaft
- Lifters
- Upper valvetrain
The main bearings are the foundation of the rotating assembly, making them one of the most important areas to protect.
Why Does BluePrint Use Priority Main Oiling?
Many BluePrint performance engine blocks are intended for:
- Street performance
- Street/strip applications
- Drag racing
- High-horsepower combinations
- NHRA competition
Under these conditions, maintaining a stable oil supply to the crankshaft is critical.
Priority Main Oiling helps improve lubrication to the components that experience the highest loads.
What Are The Advantages Of Priority Main Oiling?
Improved Main Bearing Protection
By feeding oil to the main bearings first, the oiling system helps ensure adequate lubrication reaches the crankshaft before being distributed elsewhere.
Benefits include:
- Improved bearing life
- Increased durability
- Better lubrication stability
Better High-RPM Performance
As engine RPM increases, oil demand increases.
Priority Main Oiling helps maintain oil delivery to critical rotating assembly components during high-RPM operation.
Benefits include:
- Improved reliability
- More consistent oil supply
- Better high-performance durability
Better For High Horsepower Applications
High-horsepower engines place significant loads on:
- Main bearings
- Rod bearings
- Crankshaft journals
Priority Main Oiling helps provide a stable supply of oil to these heavily loaded areas.
Improved Durability
Proper lubrication is one of the most important factors affecting engine longevity.
A Priority Main Oiling design helps improve:
- Long-term reliability
- Bearing protection
- Performance consistency
Does Priority Main Oiling Increase Horsepower?
No.
Priority Main Oiling does not directly increase horsepower.
Its purpose is to improve lubrication and durability, particularly in demanding operating conditions.
Is Priority Main Oiling Only For Race Engines?
No.
While it is commonly associated with racing applications, Priority Main Oiling also benefits:
- Street performance engines
- Street/strip cars
- Restomods
- Muscle cars
- Performance trucks
Any engine can benefit from improved oil control and lubrication strategy.
Does Every BluePrint Engine Use Priority Main Oiling?
Oiling system design varies by engine family and block design.
Some BluePrint performance blocks utilize Priority Main Oiling as part of their performance-oriented architecture.
Always review the specifications for your specific engine or block.
Why Is Bearing Protection So Important?
The crankshaft rides on a thin film of oil supported by the main bearings.
If oil supply is interrupted, bearing damage can occur quickly.
Protecting the:
- Main bearings
- Rod bearings
- Crankshaft
is critical to engine survival and durability.
Frequently Asked Questions
Is Priority Main Oiling better than traditional oiling systems?
Priority Main Oiling is often preferred in performance applications because it delivers oil to the main bearings before supplying the upper engine.
Does Priority Main Oiling help high-horsepower engines?
Yes. It can provide improved lubrication stability in demanding applications.
Can Priority Main Oiling fix low oil pressure?
No. Proper oil pressure depends on the complete oiling system and engine condition.
Is Priority Main Oiling used in racing engines?
Yes. It is commonly found in performance and racing-oriented engine block designs.