5681042147 Dyno Tested LS 6.0L 450HP with front accessory drive system and TKX transmission.

Ohio Speed Shops engine packages are built as ordered so we can provide you personalized options and service.

Ohio Speed Shops Dyno Tested LS 6.0L 450HP Engine Package Includes:

• FREE 48 State Truck Freight Shipping
• Initial engine break-in on dyno prior to test and tuning.
• Engine Dyno Tested and Tuned.
• Self Learning Holley Terminator X engine harness, ecu and 3.5" touchscreen display.
• Polished cast aluminum 4150 flange LS3 intake manifold.
• Universal 4-Barrel Design, 4150 carb style linkage, 1000cfm, throttle body.
• Polished scoop with internal air filter.
• Black billet fuel rails, plumbed for driver’s side rear inlet. Setup for no return EFI fuel pump.
• 522-428X Holley EV6 42lbs Injectors.
• 554-102 Holley Fuel Press Sensor.
• Installed Polished CVF HD 8-Rib Serpentine Drive System A/C, GM Type II P/S pump & 140amp Alt.
• Remote power steering reservoir, hose and fitting package.
• PW30700 Painless Performance High Amp Alternator Wiring Kit.
• Polished finned cast aluminum coil covers.
• Your choice of engine block color: natural, black, Chevy orange or bright red.
• New PMGR Starter with bolts
• Your choice of oil pan: Holley 302-1, Holley 302-2, Holley 302-3, GM F/body, GM C6, Chevy Performance Musclecar Pan.

Engine Specifications:

• Power: 450 HP @ 5600 RPM, 441 ft. lbs. of torque @ 4800 RPM.
• Brand New GM LQ9 long block
• Engine size: 364 CID 6.0L
• Bore / Stroke: 4.000” x 3.622”
• Engine block: Cast Iron
• Camshaft: Hydraulic Roller, Duration 204I / 218E, Lift .550I / .550E, LSA 117.5
• Compression Ratio: 10.3:1
• Recommended Fuel: 91 Octane
• Maximum Recommended RPM: 6800

Tremec TKX Transmission Base Package (Contact us for complete YMM specific TKX swap packages)

• Tremec TCET17805 5 speed manual transmission, 2.87 1.89 1.28 1.00 .68 Ratios.
• BHG-LAK00105A Aluminum GM LS/LT bellhousing with hardware.
• HD roller pilot bearing.
• Steel flywheel 6-bolt, 168T.
• 75257 McLeod Super Street Pro Clutch 12” diaphragm style, Organic/Ceramic.
• Flywheel and pressure plate bolt & hardware kit.
• HGTKXLSSK hydraulic throw-out bearing package with spacers.
• Transmission mount and hardware package.
• 3QT TKX Break-in transmission fluid.
• 3QT TKX 75W80 GL-4 transmission fluid.

Tremec TKX Transmission Details:

• 600 lb.-ft. of torque capacity; capable of engines speeds of 8,000 RPMs with shifts at 7,500 RPMs.
• Designed for multiple applications with three shifter locations.
• Compact, end-loaded design provides clearance in most transmission tunnels without floor modifications.
• Increased case strength with three-piece aluminum housing provides outstanding structural stiffness.
• Gaskets at all flanges simplifies installation and eliminates fluid leaks.
• Superior shift-ability through use of multi-cone synchronizers and hybrid synchronizer rings made of sintered bronze and carbon.
• All gears and shafts made from special grade steel (ASTM 4615), providing increased torque carrying capacity.
• Equipped with a high-performance short-throw billet aluminum shifter that isolates road noise, while providing clean, crisp shifts.
• Robust design with internal three-rail shift system and a combination of aluminum and steel shift forks.
• Wide gear width increases gear life and torque capacity.

Engines are built as ordered so changes can be made such as: engine trim, serpentine drive configuration, engine paint, oil pan, etc.

CVF Racing front accessory drives are available with or without A/C, with or without P/S, Saginaw, GM Type II or Hydro Boost power steering pumps available. Black, Polished and other finishes available.