383ci LT1 Boosted Competition Short Block Engine

383ci LT1 Boosted Competition Short Block Engine

Base Price $4,999

The 383 Boosted Competition Short Block is a good foundation for performance engines builds up to 750hp running up to 15 psi of boost.



  • GM LT1 Cast Iron Block
  • Deck to Match Pistons
  • Bored 4.030”
  • Honed with Torque Plates and Pressure Washed
  • New Durabond Cam Bearings Installed
  • Billet 4-Bolt Main Caps Installed, Line Hone
  • ARP Main Studs


  • Mahle Forged Boosted Pistons


  • Clevite H-Series Main and Rod Bearings


  • Scat 4340 Forged Steel
  • 3.750” stroke


  • Scat 4340 Forged H-Beam
  • 5.700” length
  • ARP Rod Bolts


  • Mahle plasma moly Main and Rod Bearings

Here at Golen Engine we build each LT1 Street engine with the same meticulous process used in our line of racing engines to ensure top quality performance and reliability throughout its lifetime.

When you purchase one of our LT1 High Performance 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.   

We are able to custom build your engine to match just about any specs you desire and offer a long list of proven upgrades, so if you do not see it just ask us!

Feel free to contact us anytime for help choosing the perfect performance engine combination!!

Thank you,

Golen Engine