Chevy 396 402 409 427 454 502 V8 Eight Cylinder Adjustable Big Block Long Water Pump KitAlternator Bracket Adjustable Big Block Long Water Pump Kit Fit For Chevy 396 402 409 427 454 502 V8 Eight Cylinder * This bracket mounts the alternator in front of the passenger side head. * This bracket will work with serpentine and V belt pulleys. * You will need to make sure that your cylinder head has 3 8" threaded holes, same as the water pump. (Some cylinder heads have 11 16" threaded holes.) * Included in the package is 2 brackets, 1