416ci LT1/LT4 Boosted Long Block Engine

416ci LT1/LT4 Boosted Long Block

Base Price: Call for Pricing

The LT1/LT4 416ci competition long block uses a new GM LT1/LT4 block with 4.070" bore to produce the 416CI.  This long block provides a strong foundation for Boosted engines making up to 1000hp and can be customized to meet your needs.



  • New GM LT1/LT4 Aluminum Block Honed with Torque Plates
  • Bore Size 4.070"
  • Zero Decked
  • Line Honed with ARP Main Studs
  • Blueprinted Oil Clearances
  • All New GM Block Plugs Installed
  • New Durabond Cam Bearings Installed


  • Wiseco 2618 Forged Boost Ready Pistons with Armor Glide skirt coating


  • Clevite H-Series Main and Rod Bearings


  • GM LS7 Lifters


  • GM MLS Head Gaskets


  • Callies Magnum Series 4340 Forged Steel
  • Stroke 4.000”
  • Wet or Dry Sump Oiling
  • Internally Balanced Front and Rear


  • Callies Ultra 4340 Forged Steel H-Beam
  • 6.125” Length
  • ARP 2000 Rod Bolts


  • Wiseco GFX Stainless Steel


  • Comp Cams Billet Hyd Roller Camshaft, Custom Grind

Timing Sets:

  • GM Roller Timing Set

Oil Delivery:

  • GM Oil Pump, either wet or dry sump



  • CNC Ported LT1 or LT4 heads with GM Valves and PAC Racing Double Polished valve springs

Head Bolts: 

  • ARP Head Stud Kit

Rocker Arms:

  • GM Rockers with Trunion upgrade kit installed


  • 5/16 Hardened Pushrods, .105” Wall

We are able to build your engine to match just about any specs you desire, so if you do not see it just ask us! Each Golen Engine comes standard with a one year no mileage limit warranty to keep you confident and covered. When you purchase one of our LT1/LT4 Boosted Engines you will receive a full spec sheet listing the exact components your engine was built with. We will also provide you with a complete Set Up Guide as well as full phone tech support to aid you with the installation process. It is mandatory for you to contact Golen Engine Tech Support before starting your engine for the first time and you can reach our Tech Support Line at 1-800-591-9171 ext 2. Each Golen Engine Performance Street Engine comes standard with a “One Year No Mileage Limit Warranty” to keep you confident and covered! Feel free to contact us anytime for help choosing the perfect performance engine combination!!