12673476 - Production LSA / 6.2L Gen IV Block

The LS Series cylinder block is the foundation for the serious performance achievements that are driving a new generation of street and racing enthusiasts. Features include a deep-skirt casting (the block side extends below the crankshaft centerline); 6-bolt cross-bolted main caps, strong and lightweight aluminum alloy casting (most productioin blocks) and provisions for the latest in engine control management. The cam-in-block configuration brings inherent torque to every LS engine, with production-based blocks capable of supporting combinations of 500 horsepower or more. The corvette ZR1'sunique 6.2L block, for example, supports the engine's 638-horsepower rating. GM Performance Parts' high-performance inon LSX cylinder block supports more than 2000 forced-inductioni horses!

Whether you're building a mild street engine or an Outlaw racing engine, starting with a strong LS cylinder block brings the assurance that you'll amke the power you need with a durable foundation.4.125" Bore, 9.240" Deck, 2.56" Mains, 6 Bolt Main, Aluminum Block

LSA 6.2L CTS-V Bare Block

• Direct replacement for 2009-2010 6.2L LSA supercharged engine
• Production cast-aluminum block with iron sleeves
• Production oiling system
• 6-bolt iron main bearing caps
• 9.240" deck height
• Not for use with LS7 or LSX-LS7 series heads
• 4.065" finished bore (103.25mm)
• No provision for Active Fuel Management
• Piston oil coolers
• Tested to over 550 horsepower!