Ls3 vs lq92/15/2023 ![]() The bulkheads accommodate six-bolt, cross-bolted main-bearing caps that limit crank flex and stiffen the engine’s structure. Its deep-skirt design helps maximize strength and minimize vibration. Cylinder Block and Rotating Assembly: the engine block was developed with math-based tools and data acquired via GM’s racing programs, and provides a light, rigid foundation for an impressively smooth engine.The engine’s efficiency provides an optimum reduction in emissions. Intake flow was improved over previous engines by straightening out and optimizing the flow path from the intake manifold into the cylinder heads, while the exhaust ports are also designed for greater flow. As with other members of the Small Block engine family, one of the enablers of the LS3’s balance of performance and efficiency is great airflow throughout. The 6.2L LS3 is a direct descendant of the original Small Block, sharing key characteristics with that legendary engine. ![]()
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