ATK LS 408 Stroker Engine 620HP LS3 Alum LS02C

Rule the street with this ATK LS02C LS 408 Stroker Engine. Producing 620+ horsepower and 550 lb/ft torque, this assembled engine offers great top end power. Aluminum cylinder heads enhance the performance and the forged crankshaft and pistons assure durability. This long block crate engine includes carburetor, oil pan, valve covers, timing cover, harmonic balancer, spark plugs and spark plug wires.

Engine Specifications:

• Horsepower: 620+
  
• Torque: 550 lb/ft
  
• Block: New GM L92/LS3 Aluminum
  
• Bore/Stroke: 4.065 x 4.000
  
• Displacement: 415 C.I.D.
  
• Crankshaft: Manley 4340 Forged 4.000" Stroke Internally Balanced
  
• Connecting Rods: Manley 4340 Forged H Beam 6.125 ARP 8740 Bolts
  
• Pistons: Forged
  
• Piston Rings: Moly Rings
  
• Compression Ratio: 10.3:1 Compression
  
• Camshaft: Hydraulic Roller
  
• Camshaft Specifications: 240/256 @050 .625in/.625ex 113LSA
  
• Camshaft Bearings: Installed & Clocked to OEM Position
  
• Cylinder Heads: LS3 Aluminum 68.4cc/260cc 2.16/1.59
  
• Freeze Plugs: Brass Installed & Sealed
  
• Rocker Arms: GM Roller 1.7 Ratio
  
• Oil Galley Plugs: Installed & Sealed
  
• Oil Pan: GM Muscle Car Pan 5qt.
  
• Weight: 430
  

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!