416ci LS3 Boosted Competition Short Block


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

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Grand total


  • 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


  • Wiseco Custom Forged Boost Pistons


  • 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


Boost enthusiasts, gather around! We’re shining the spotlight on the Golen Engine 416ci LS3 Boosted Competition Short Block, a powerhouse built for the serious boost lover. At its core is a robust, precision-engineered block ready to take on serious pressure. We’ve outfitted it with ARP main studs and high-quality cam bearings, setting the stage for extreme performance.

At the heart of this beast is the Callies Comp Star 4340 forged steel crankshaft, designed to handle the rigors of boosted applications. Matched with the Callies Comp Star H-Beam rods and ARP 2000 rod bolts, this setup is as sturdy as they come. We’ve chosen Wiseco 2618 forged pistons and their GFX ring set, specifically designed for boosted environments, ensuring reliability under pressure.

This engine isn’t just assembled; it’s crafted with precision. Fully balanced, blueprinted, and equipped with King bearings, it’s fine-tuned for peak performance. Whether you’re running a supercharger or a turbo, this engine is ready to handle boosts up to 20 psi with ease.

For those looking to complete their build, we offer all the necessary components, including Cometic MLS head gaskets and ARP Head studs. Our Golen Engine Aftermarket LS3 CNC Ported heads are the perfect match, featuring thick decks that effectively seal in the boost for maximum power.

And don’t worry if you’re doing this solo – we provide full tech support, along with a suite of helpful tech links and videos for assistance outside of business hours. The Golen Engine 416ci LS3 Boosted Competition Short Block is your gateway to dominating the boosted world. Time to turbocharge your build and hit the road with power!

Additional information

Weight 350 lbs
Dimensions 38 × 26 × 27 in