416ci LS3 Short Block


Base Price $7,899

The LS3 416ci competition short block uses a new GM LS3 block with 4.070" bore to produce the 416CI.

The larger cubic inch in this LS 416" short block allows for more low-end torque and is a great foundation for higher horsepower applications. If you are looking for smaller bores, our 6.2L LS3 small block starts at 4.065" to produce 376ci.



  • New GM LS3 Block Performance Honed with Torque Plate
  • Bore Size 4.070″
  • Resurfaced to Match Pistons
  • Line Honed with ARP Main Studs
  • Blueprinted Oil Clearances
  • All New GM Block Plugs Installed
  • New Durabond Cam Bearings Installed


  • Mahle Forged Pistons with Anti-Friction Coating


  • King H-Series Main and Rod Bearings


  • Callies Comp Star 4340 Forged Steel
  • Stroke 4.000”
  • Your Choice of 24x or 58x Reluctor Wheel (Billet 24X Reluctor Wheel is an Extra $150″)
  • Internally Balanced Front and Rear


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



Technical Links: (Coming Soon)


  • Installing Windage Tray, Oil Pump Pick Up and Covers
  • Installing LS Harmonic Balancer
  • Torque Specs for Entire Engine
  • How to Set Pushrod Preload on LS Engine
  • How to Properly Prime the LS Oil Pump
  • Recommendations; Oil, filter, spark plugs


Hey there, engine buffs! Let’s talk about the Golen Engine 416ci LS3 Competition Short Block, a true masterpiece for those serious about power and performance. This powerhouse starts with a brand new GM Aluminum LS3 Block, ensuring top quality right from the get-go. It’s beefed up with a Callies Comp Star forged steel crank and H-Beam Connecting Rods, making it tough as nails.

Precision is key, and this block delivers with CNC machining, along with ARP Main Studs and Durabond cam bearings for unmatched reliability and performance. But that’s just the beginning. It’s balanced and blueprinted using King Performance bearings and Mahle forged pistons, ensuring your engine runs smooth and powerful.

Looking to complete your build? We’ve got everything you need, from a hydraulic roller camshaft to hit your horsepower goals, to our high-end Golen LS3 CNC ported aftermarket heads for that extra edge in performance. And don’t worry about the assembly – our full tech support is here to help you every step of the way.

With the Golen Engine 416ci LS3 Competition Short Block, you’re not just building an engine, you’re crafting a powerhouse that’s ready to dominate. So, let’s get to work and make that dream engine a reality

Whether you’re a racer or just want to get the most performance out of your car, our 416” LS short block engines can give you the power you need. These 416” LS short blocks are stroked to 6.8 liters and have the specs enthusiasts are looking for to meet their requirements. Our capabilities also include a full-service machining shop and full dyno tuning, so you can rest assured your forged LS3 short block engines will be fully tested, approved and ready to go. If you’re looking for even more power, you should check out our boosted LS3 short block for increased output and greater performance.

We are able to build your LS3 stroker short block engine to match just about any specs you desire, so if you do not see it just ask us! When you purchase one of our LS HP or Hot Rod Series Street 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.  Feel free to contact us anytime for help choosing the perfect performance engine combination!!