![Chevy GM LS STD Main Bearings [4.8 5.3 5.7 6.0 6.2] Available in different bore diameters](https://cdn.shopify.com/s/files/1/0762/0316/3867/files/PCE325.SBC_412361dc-9b92-4e72-b323-99f89a46ea39.jpg?v=1784401875)
Pay in 4 interest-free payments of $12.85 Learn more
Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
Available in different bore diameters to suit your specific engine's needs
The outer cases made from 8620 Chrome-Nickel-Moly steel and the case hardened for long life and improved strength
and one 3mm spacer
you will need to make sure that your ride has 17 in
Chevy GM LS STD Main Bearings [4.8 5.3 5.7 6.0 6.2] Available in different bore diametersThese Speedmaster main bearings are just what you need to freshen up your engine. Why? They use silicon aluminum bi metal construction. Silicon aluminum is the choice for many of today's engine manufacturers because of its high fatigue strength and superior temperature threshold. Bearing wear is dramatically reduced and the fatigue strength is greatly improved.
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