Engine Block Description:

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 aluminium alloy casting (most production 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 iron LSX cylinder block supports more than 2000 forced-induction 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 make the power you need with a durable foundation. 4.125" Bore, 9.240" Deck, 2.56" Mains, 6 Bolt Main, Aluminium Block

LS7 7.0L Corvette Bare Block

• Direct replacement for 2006-2009 7.0L LS7 engine
• Production 319-T5 aluminium block with pressed-in iron sleeves
• Production oiling system
• 6-bolt dowel located steel main bearing caps
• 9.240" deck height
• For use with any LS or LSX series head
• 4.125" finished bore (104.78mm), deck plate honed
• Siamese cylinder bores for large bore size
• No provision for Active Fuel Management
• Based on C5R block development
• Tested to over 500 horsepower!

Product Reviews for GM19213580 - GM