Our 1000 Series  5.3 long block is rated to handle 1000 HP reliably.  Whether you want to pump some boost in this unit and see what that tranny can hold, or if you want to see just how much nitrous a 5.3 can eat, this is the right place to start!

Build Specs:

• GM Iron 5.3 Block
• GM Stock 5.3 Crank
• ARP Main Studs
• Forged H-Beam Rods with ARP bolts
• 2618 Forged Pistons - Your choice of Flat Top or Dish
  
• Total Seal AP Steel, Gas Ported, Ring Set
  
• Cloyes timing chain dampener, also added to all gen3 builds
• Clevite Main & Rod Bearings
• Durabond Cam Bearings
• New block plug kit and barbell