Holden 308 / 253 ACL Race Series Conrod Bearings
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Holden 308 / 253 ACL Race Series Conrod Bearings
Enhance your engine's performance with the Holden 308 / 253 ACL Race Series Conrod Bearings, meticulously engineered to endure higher RPM conditions. These bearings are a top choice for enthusiasts and professionals seeking reliability and efficiency in their 4, 6, and 8-cylinder applications.
- High Strength Overlay Plate: Features a reduced thickness for superior durability.
- Hardened Steel Backs: Ensures robust support for all Conrod Bearings.
- Increased Crush: Eliminates flash plating for a seamless fit.
- 3/4 Grooving on Main Bearings: Provides optimal oil supply for enhanced lubrication.
- Tight Wall Tolerances: Guarantees consistent performance and reliability.
- Oversize Chamfers: Available where applicable for improved fitment.
| Product Name | Holden 308 / 253 ACL Race Series Conrod Bearings |
|---|---|
| Brands | ACL |
| Engine | Holden 308 / 253 |
| Make | 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 is the recommended clearance for the Holden 308 / 253 ACL Race Series Conrod Bearings?
Clearance for the Holden 308 / 253 ACL Race Series Conrod Bearings should be determined based on your specific engine build and intended use. Generally, a clearance of 0.0015" to 0.0025" is common for performance applications, but always consult with your engine builder for precise specifications.
Do I need to modify my conrods to fit the ACL Race Series Conrod Bearings?
In most cases, the ACL Race Series Conrod Bearings should fit standard Holden 308 / 253 conrods without modification. However, it's essential to check for proper fitment and ensure that the conrod journals are within OEM specifications. If there are any irregularities, honing may be required.
Can I use these bearings in a street application?
While the Holden 308 / 253 ACL Race Series Conrod Bearings are designed for high-performance applications, they can be used in street applications if the engine is built for higher RPM and load conditions. Keep in mind that proper oiling and maintenance are crucial for longevity in street use.
What type of oil should I use with these conrod bearings?
For optimal performance with the Holden 308 / 253 ACL Race Series Conrod Bearings, use a high-quality synthetic or semi-synthetic oil that meets the required viscosity for your engine. Ensure that the oil has good thermal stability and anti-wear properties to protect the bearings under high RPM conditions.
Are these bearings suitable for boosted applications?
Yes, the Holden 308 / 253 ACL Race Series Conrod Bearings are suitable for boosted applications, provided the engine is properly built and tuned. Ensure that you maintain appropriate clearances and oiling to handle the increased loads and RPM associated with forced induction.