Installation Notes:

• Ideal for stock LS1/LS6/LS2 or 5.3L-6.0L Vortec truck engine swaps
• Designed for use with 520-12643 engine mounting brackets and 520-12644 transmission crossmember
• Compatible with QuickTime bellhousings, mechanical clutch linkage, stock A/C evaporator case on firewall, straight boot spark plug wires and Holley LS swap oil pans and accessory drive brackets
• Compatible only with stock height subframe/body mounts; installation with 'half height' mounts will require modification to vehicle floor panels. Not compatible with stock GM column shift linkage; must use Lokar or similar aftermarket cable or linkage assembly for column shifted applications
• Long tube headers connect directly to Hooker 3' exhaust system; connection of long tube headers to Hooker 2-1/2' exhaust system, or Hooker mid-length headers to 2-1/2' or 3' exhaust system requires the use of an available mid-pipe kit