5.3L "Ruthless Runt" Short Block

Texas Speed

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$5,619.98 - $5,909.93
$5,619.98 - $5,909.93


5.3L 332ci Short Block "Ruthless Runt" 

Note: Heavy freight charge of $469.99 is already added to this block's cost as shown. This includes the crate and egine cradel required for shipping.

Introducing the Texas Speed In-Stock Short-block program. The goal of this project is to provide
customers with quicker product delivery without the extended build times. By offering a variety of
common engine designations and compression choices, the customer will have an option that is ready to
ship out in a few days. The same parts, machining, care and workmanship goes into these builds using
the exact same processes as our custom engine program. The only difference is that the engines are pre-
built before purchase instead of the build process starting after purchase. All engines are balanced,
blueprinted and assembled in house, to exacting TSP tolerances.

Gen IV LS-Series - In-Stock Short-Block Campaign: 

  • These are a limited run of 5.3 engines, get them while they last!
  • In-stock and Ships fast!
  • Call our sales team to convert to long block and it will still ship out very quickly!
  • Same quality as our custom builds. These 5.3's are 1000hp Capable!


Ruthless Runt Build Specifications:

  • GM Gen IV Aluminum 5.3L LC9 Block
  • 332ci / 5.3L 
  • ARP Main Stud Kit
  • GM 3.622” LS Nodular Iron Crankshaft – 58X Reluctor – 6-Bolt
  • TSP/Wiseco -4cc Dished Forged 3.820” Pistons – Boost or N/A - No Valve Reliefs
  • TSP or K1 Technologies, Forged 4340 Steel 6.125” H-Beam Connecting Rods
  • 1000hp Capable 



  • Every short block comes equipped with a 58x crank reluctor wheel. If using in a 24x equipped Gen 3 Vehicle. You will need a Lingenfelter Crank Sensor Conversion Box located in the drop down box above. Part no. # L460065397


Extra Information

Texas Speed