BHS555 Features:

• Includes (8) 10 mm x 1.5 x 25 mm mounting bolts
• Designed for use with the OEM V8 engine isolators
• Dual engine fore-aft mounting positions to optimize user-selected powertrain placement;
  • Forward-Bias maintains the stock location of the transfer case and driveshafts with a 6L80/6L90 transmission installed
  • Rear-Bias for existing transmission, transfer case, and driveshaft(s) compatibility
• Allows the use of an electric cooling fan, or with the factory GM Vortec mechanical cooling fan
• Compatible with factory GM Vortec exhaust manifolds for applications wanting Smog-Legal use - appropriate Catalytic Converters required
• Compatible with Hooker Blackheart LS Swap Headers 520-BH13266 for off-road racing and competition use
• Compatible with factory GM Truck LS Oil Pan, and Holley Retrofit Oil Pans 510-302-2, and 510-302-3

Notes:

• The factory transmission crossmember and driveshafts can be retained
• For 4.3L V6 equipped trucks, removal of the factory V6 frame-side engine mounts and brackets are required and to be replaced with V8 engine mounts