Texas Speed & Performance's off-road engine packages are your ultimate solution for off-road racing! Each package is precision machined with state-of-the-art CNC equipment that allow for the strictest of tolerances, and every TSP engine is hand-assembled by experts that deal ONLY with LSx-based and Gen 5 LT engines! All of our engine machining and assembly, as well as our cylinder head and camshaft production, is in-house and NOT sourced out. All components in our engines are brand new parts, including the block, so you are not buying an engine that uses any remanufactured items! We are the only LS and Gen 5 LT-based company that digitizes and blueprints every engine block on a CNC machine to the factory GM specifications! Our off-road engine packages are designed to provide our customers with a true drop-in engine that is ready to run, and these engines have many upgraded components to withstand the harsh racing environment! These are hand-built engines that receive the care and attention that you should expect when purchasing your engine! Our engines are built for strength, durability, and power, so your new TSP engine is ready for whatever you can throw at it!

The TSP 427 CID "Qualifier" LS3 Off-Road Engine Package will have a lopey idle and will require a minimum of a 3,000 RPM stall speed torque converter.

We build all of our off-road engines with a 24x reluctor wheel and cable-driven throttle body. We can also build it for an electronic throttle body if you prefer for an additional cost. Our standard cost does not include an engine wiring harness or ECM, but these items can be added. Due to the intended use of these engines, we will include a base tune if you do choose to add the harness and ECM to your engine package, but we will require that you have the setup dyno tuned once it is installed and running.

All TSP engines will include 12 quarts of break-in oil for no additional cost. Proper break-in oil and procedures for your engine are just as important as the build process! The break-in oil allows for proper ring sealing against the cylinder walls upon start-up, as well as for the break-in period once the engine is up and running. Most off-the-shelf engine oils do not have the necessary ZDDP additives to allow for proper break-in of a new engine, and we want to take every precaution possible to ensure that your new TSP engine receives a proper break-in! We also offer Driven Racing oil for your new engine once your break-in is complete. We recommend using the HR2 conventional non-synthetic.



Features:

• This package will include:
  • TSP Resleeved GM Aluminum Engine Block With Darton Sleeves
  • Priority Thrust Bearing Oiling to Alleviate Oil Starvation to the Center Thrust Bearing
  • ARP Main Stud Kit
  • Texas Speed & Performance Forged 4340 4.00" Stroke Crankshaft
  • Texas Speed & Performance Forged 6.125" Super I-Beam Connecting Rods
  • CP Pistons 4.125" Forged Piston Set with Steel Top/Napier 2nd Ring Set & HD Wrist Pins
  • 11.5:1 Compression Ratio
  • Precision Race Components 260cc LS3 Aftermarket Casting Cylinder Heads with TSP Dual Valve Spring Kit with PAC .700" 1207X Springs & Titanium Retainers
  • Texas Speed & Performance Custom-Grind Hydraulic-Roller Camshaft: 240/252, .620"/.618", 111 LSA
  • Texas Speed & Performance Chromemoly Hardened Pushrods
  • ARP 12-Point Head Stud Kit
  • Cometic MLS Cylinder Head Gaskets
  • GM LS3 Rocker Arms with TSP Trunion Upgrade Kit
  • Stainless Steel Hardware: Intake Manifold Bolts, Timing Cover Bolts, Valley Cover Bolts, Water Pump Bolts, Thermostat Bolts, & Oil Pump Bolts
  • GMPP LSA Center-Bolt Valve Covers with Ignition Coils
  • Melling High Pressure Oil Pump
  • IWIS C7R HD Timing Chain
  • Johnson Slow Leak Down Short Travel Link Bar Hydraulic Roller Lifters
  • 63 lb./hr. Fuel Injectors (Rated @ 43.5 psi)
  • GM Hot Rod Oil Pan Kit as Standard
  • Improved Racing Oil Pan Baffle
  • Optional Front Drive Systems to Choose From
  • GM LS3 Intake Manifold Assembly: Includes Manifold, Fuel Rail, Fuel Injectors, and Nick Williams 92mm Cable-Drive Throttle Body
  • Setup with GM Sensors for 2002 LS1 Camaro/Firebird with 24x Reluctor Wheel
  • Complete GM Sensors
  • MSD Spark Plug Wire Kit
  • NGK Spark Plugs
  • Optional Engine Harness and ECM Available
  • GM Starter
  • 12 Quarts Break-In Oil (Cannot Be Used During Racing Event)
  • AC Delco Oil Filter

Fitment:

• Cadillac CTS-V 2009-2015
• Cadillac Escalade 2005-2014
• Chevrolet Camaro 1998-2015
• Chevrolet Corvette 1997-2013
• Chevrolet Silverado 1500 1999-2013
• Chevrolet SS 2014-2017
• Chevrolet Suburban 2000-2014
• Chevrolet Tahoe 2000-2014
• Chevrolet Trailblazer 2006-2009
• GMC Sierra 1500 1999-2013
• GMC Yukon 1999-2014
• Pontiac Firebird 1998-2002
• Pontiac G8 2008-2009
• Pontiac GTO 2004-2006
• Universal Retrofit 1997-2016

Note:

• Competition Use Only, Not Legal for Road Use