LSx 454ci Crate Engine


Base Price $17,799

This LSx 454 block is an upgraded, modern edition of the legendary 454 Big Block. Packed with a whopping 700 horsepower, this 21st century 454 is based on the LSx Bowtie Block, so it requires no extra room under the hood than a production LS. Other key features of this LSx 454 supercharged engine include a boost-ready design, forged rotating assembly, six-bolt cylinder heads and a hydraulic roller cam for reduced wear and friction. We also carry a 440ci LS7 edition that delivers the same jaw dropping 700 horsepower.

Peak Horsepower: 725bhp @ 6700 rpm
Peak Torque: 580lb/ft @ 5200 rpm
Compression Ratio: 11.5:1
Operating Range: 2500 – 6700rpm
Required Fuel: 91+ Octane Pump Gasoline 



  • Dart SHP Pro Cast Iron Block (Aluminum Dart or Concept Performance LSr Blocks Available as Upgrade)
  • Resurfaced to Match Pistons
  • Bored 4.185”
  • Performance Honed with Torque Plates
  • New Durabond Cam Bearings Installed
  • Line Honed, Build Oil Clearances In
  • ARP Main Studs


  • Mahle Forged pistons with Anti-Friction Coating


  • King H-Series Main and Rod Bearings


  • Johnson OE Hydraulic Roller


  • Oil Pan (Camaro, Corvette, GTO,Truck or LS Swap)
  • GM Timing Cover
  • GM Rear Cover
  • GM Lifter Valley Cover
  • GM Valve Covers (Custom Valve Covers Available)


  • Powerbond SFI
  • ARP Damper Bolt


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


  • Callies Comp Star Forged Steel H-Beam
  • 6.125” Length


  • Mahle Plasma Moly


  • Comp Cams Hydraulic Roller

Timing Sets:

  • Cloyes Billet Roller with Hex Adjust

Oil Delivery:

  • Melling Select Performance High Volume
  • GM Pick Up Tube
  • GM Windage Tray


  • GM MLS Head Gaskets
  • GM Cover Gaskets



  • Golen Aftermarket LS Aluminum CNC Ported
  • Three angle performance valve job

Intake Valves:

  • Rev Stainless Steel 2.16”

Exhaust Valves:

  • Rev Stainless Steel 1.6”

Head Bolts:

  • ARP Performance

Intake System:

  • Fast LSxR 102mm  Intake
  • 102mm Billet Throttle Body (DBW Options Available)
  • Bosch 52lb Uscar EV6 Fuel Injectors
  • GM Factory Fuel Rails or Black Billet Fuel Rails

Combustion Chamber:

  • 70cc


  • 380CFM @ .600” Lift

Spring Kit:

  • BTR Double Valve Spring
  • Light Weight Titanium Retainers and Hardened Locks

Rocker Arms:

  • GM Factory 1.7 Ratio with BTR Trunion Upgrade Kit Installed


  • BTR 5/16 .083” Wall Hardened

Ignition System:

  • NGK Spark Plugs

Dyno Test Service:

  • Run Engine for Full Break In and Power Test
  • 2 Oil Changes using Joe Gibbs Break In Oil
  • Graphs Listing HP, Torque and Youtube Dyno Video

Our in-house machining shop allows us to engineer your LSx 454 motor to meet your desired specs, so if you don’t 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 turnkey LSx 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 for your new LSx 454 motor. It is mandatory for you to contact Golen Engine Tech Support before starting your LSx 454 crate 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 Chevy LSx 454 engine combination!