Enhance your engine's performance with the Holden / GM LS Race Series Conrod Bearings, meticulously engineered for high RPM conditions. These bearings are a top choice for automotive enthusiasts seeking reliability and durability in their 4, 6, and 8 cylinder applications. Crafted with precision, they ensure your engine runs smoothly under demanding conditions.
High Strength Overlay Plate: Features a reduced thickness for superior performance.
Hardened Steel Backs: Provides robust support for all Conrod Bearings.
Increased Crush: Eliminates flash plating for enhanced durability.
3/4 Grooving on Main Bearings: Ensures optimal oil supply for efficient operation.
Tight Wall Tolerances: Guarantees consistent performance and reliability.
Oversize Chamfers: Available where applicable for improved fitment.
More Information
Product Name
Holden / GM LS Race Series Conrod Bearings
Brands
ACL
Engine
Chev LS7, Chev LS 5.3L (15° Heads), Chev LS (15° Heads), Chev LT1, GM / LS, LS 5.7L, LS 5.7L and 6.0L V8
Make
Chevrolet, GM, Holden, LS Chev
Delivery & Freight
We are an Australian-based company that ships items nationally and internationally, usually within 48 hours of receiving your order. High-value items shipped internationally are sent via DHL Express, while lower-value items are sent via Australia Post Express unless otherwise instructed.
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Disclaimer:
Product images are for description purposes only. Actual product may vary.
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 applications are suitable for the Holden / GM LS Race Series Conrod Bearings?
These conrod bearings are designed for high RPM conditions and are suitable for a range of LS engines, including the LS7, LS5.3L, LS5.7L, LS6.0L, and LT1. They are ideal for performance builds in 4, 6, and 8 cylinder applications where reliability and durability are critical.
What are the benefits of the high strength overlay plate in these bearings?
The high strength overlay plate features a reduced thickness which enhances performance by providing better load distribution and reducing friction. This design is particularly beneficial in high-stress environments typical of racing and performance applications.
Do I need to modify my engine for these conrod bearings?
While these bearings are designed to fit standard LS applications, it's essential to check for proper clearances and tolerances during installation. Depending on your specific engine setup, you may need to perform additional machining or adjustments to ensure optimal fitment and performance.
How do the tight wall tolerances affect performance?
The tight wall tolerances of these conrod bearings ensure consistent performance and reliability by minimising the risk of oil starvation and wear. This precision helps maintain proper oil film thickness under high load conditions, which is crucial for engine longevity.
What is the significance of the 3/4 grooving on main bearings?
The 3/4 grooving on the main bearings enhances oil supply to the conrod bearings, ensuring efficient lubrication and cooling. This design feature is particularly important in high-performance applications where maintaining adequate oil flow is critical for engine health.
