4621048147 Dyno Tested LS 6.0L 450HP with front accessory drive system and TKX 5-speed M/T 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.
• Silver fabricated aluminum intake manifold.
• 102mm cable drive throttle body with throttle cable bracket.
• Air cleaner.
• 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.
• Orange, finned, cast aluminum coil/valve covers.
• Your choice of engine block color: natural, black, Chevy orange or bright red.
• New HD 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.