Chev V8, Large Pin 2.100", 267-305-327-350, ACL Race Series Main Bearings
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Large Pin Chev. V8, 267-305-327-350, ACL Race Series
Designed to withstand higher RPM conditions
ACL Race Series Engine Bearings are available for many of the popular 4, 6 & 8 cylinder applications and feature:
- High strength overlay plate with reduced thickness
- Hardened steel backs on all Conrod Bearings
- Increased crush and elimination of flash plating
- 3/4 grooving on Main Bearings providing optimum oil supply
- Tight consistent wall tolerances
- Oversize chamfers where applicable
See the complete range at ACL Race Series Engine Bearings
| Product Name | Chev V8, Large Pin 2.100", 267-305-327-350, ACL Race Series Main Bearings |
|---|---|
| Brands | ACL |
| Engine | SB Chevrolet / Holden |
| Make | Chevrolet, GM, Holden |
Delivery & Freight
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What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What are the benefits of using ACL Race Series main bearings in my Chev V8 engine?
ACL Race Series main bearings are designed for high RPM conditions, featuring a high strength overlay plate and hardened steel backs. These bearings provide increased crush and eliminate flash plating, ensuring a consistent oil supply and improved durability under performance conditions.
Do I need to modify my engine block to fit these main bearings?
Typically, these main bearings are designed to fit standard SB Chevrolet engine blocks without modification. However, ensure that your block is in good condition and that the main journal sizes are within OEM specifications to achieve optimal performance.
What is the recommended clearance for these main bearings?
Clearance specifications can vary based on your engine build and intended use. Generally, a clearance of 0.0015” to 0.0025” is common for performance applications, but it's crucial to measure your specific setup and consult with your engine builder for precise requirements.
Are these bearings suitable for both street and race applications?
Yes, ACL Race Series main bearings are suitable for both street and race applications, provided that the engine is properly built and tuned. They are designed to handle higher RPMs and loads, making them a reliable choice for performance builds.
What type of oil should I use with these main bearings?
Using a high-quality synthetic or semi-synthetic oil is recommended for optimal performance and protection. Ensure that the oil meets the viscosity requirements of your engine and provides adequate lubrication, especially under high RPM conditions.