ATK LS3 415CI 620HP Base LS02 Engine

Creating massive horsepower of 620+, the ATK LS02 LS3 415CI 620HP Base Engine can generate huge mid to upper end power with a noticeable idle. This engine is built with aluminum cylinder heads and forged internal components and sealed oil galley plugs for enhanced performance and durability.

Engine Specifications:

• Horsepower: 620+
  
• Torque: 550+
  
• Block: New GM LS3
  
• Bore/Stroke: 4.065 x 4.000
  
• Year Range: 2008-2017
  
• Displacement: 415CI
  
• Crankshaft: Manley 4340 Forged Internally Balanced 58 Tooth
  
• Connecting Rods: Manley 6.125" Forged H Beams with ARP 8740 Bolts
  
• Pistons: Manley 2618 Forged
  
• Piston Rings: Moly Rings
  
• Compression Ratio: 10.3:1 Compression
  
• Camshaft: Hydraulic Roller
  
• Camshaft Specifications: 240/256 @50 .625/.625 113LSA
  
• Camshaft Bearings: Installed & Clocked to OEM Position
  
• Cylinder Heads: New LS3 Aluminum 68cc/260cc 2.16/1.59
  
• Rocker Arms: OE Rocker Arms with trunion upgrade
  
• Oil Galley Plugs: Installed & Sealed
  
• Weight: 412
  

ATK specializes in muscle. With the highest quality internal parts and Dyno Proven combinations of every engine built, ATK is able to add the most bang for your buck and back it up with an industry leading warranty.

Don't forget the engine paint!