5742142148 Dyno Tested LS 427 4150 T/Body 605HP with front accessory drive system and T56 6-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 427 605HP 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 L3 intake manifold.
• Universal 4-Barrel Design, 4150 carb style linkage, 1000cfm, throttle body.
• Chrome 14” 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.
• Red Chevrolet script, 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, TSP 81074, Chevy Performance Musclecar Pan. (This engine has a 4.125” stroke and will NOT work with Holley 302-2, 302-3, GM F/body or GM C-6 LS oil pans)

Engine Specifications:

• Power: 605 HP @ 6100 RPM, 565 ft. lbs. of torque @ 5300 RPM.
• Brand New BPE 427 long block
• Engine size: 427 CID 7.0L
• Bore / Stroke: 4.068” x 4.125”
• Engine block: New BPE Cast Iron
• Camshaft: Hydraulic Roller, Duration 239I / 255E, Lift .624I / .624E, LSA 114
• Compression Ratio: 11:1
• Recommended Fuel: 91 Octane
• Maximum Recommended RPM: 6800

Tremec T56 Transmission Base Package (Contact us for complete YMM specific T56 swap packages)

• GM Tremec Magnum 6-Speed, TUET11009 2.66 1.78 1.30 1.00 .80 .63 ratios
• Aluminum GM LS/LT bellhousing with hardware.
• HD roller pilot bearing.
• Steel flywheel 6-bolt, 168T.
• 6911-07 McLeod RST Twin Disc Clutch package.
• Flywheel and pressure plate bolt & hardware kit.
• HGMAGLSSK hydraulic slave/throw-out bearing package.
• Transmission mount and hardware package.
• 4QT T56 Break-in transmission fluid.
• 4QT Redline MTL 75W80 GL-4 transmission fluid.

Tremec T56 Transmission Details:

• 700 ft-lbs of torque capacity.
• Multiple shifter locations & dual speedo pickups for unmatched versatility.
• Incredibly short, extremely low-effort shift throws, with crisp, precise engagement.
• 26-spline input shaft, 4616 chromoly gears and shafts, one-piece counter shaft, triple cone synchros.
• Modern OE supercar technology.
• Reasonably light at 135 lbs. dry.

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.