Concept Performance LSR 6-Bolt Aluminum Block, Standard Deck

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Concept Performance prides itself in providing quality products that are 100% cast, machined, and assembled in the United States of America.  The LSR aluminum engine block is cast of a proprietary 356 T6 Aluminum Ingot, featuring Spun Ductile Iron Sleeves. The standard deck 9.240" and the tall deck 9.750", with or without raised cam.

Features

• Cross Braced Lifter Valley with Individual Drain Backs
• 40% larger Main Cap Surface
• Short or Tall decks feature a 0.750" Deck
• Added Stock to the Front and Rear Valley Walls
• Pro-Gram Engineering Main Caps SAE 1045 Billet
• ARP Main Stud Kit
• Maximized Crank saddle Radius
• Added 7th Transmission Bolt Hole to Accept Early Style GM Transmission
• LSR Engine Block weighs 113 lbs with Main Caps
• Standard Deck Height 9.240"Tall Deck Height 9.750"
• Bore Range 4.065" - 4.200"
• Front Oil Feed Line Can Be Restricted for Mechanical Lifter Options
• 6 Bolt Cylinder Head Pattern
• Cam Bore Can Be Machined to Accept 60mm Roller Bearings
• Lifter Bore Diameter Can Be Increased for Different Applications
  
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