Selling a complete carb to pan 1965 Buick 401 Riviera Wildcat Nailhead Engine and matching Switch Pitch 400 Transmission. Motor spins free, but will probably need a rebuild. Comes complete with accessory drive and original carb. Motor is pretty clean under the valve covers, not sludgy. Trans is the matching original Switch Pitch SP400 and is complete, as well. I would recommend a rebuild for it, but it is untested and may be fine. I also have a 64 ST400 trans if you need the motor for your 1964 Riviera Wildcat LeSabre or Electra(NOTE: motor is a drop in replacement for all 64-66 401's and 425's) $1500 for it complete and your choice of one trans. (Proper) Rebuild services available if you prefer to have it freshened. I can pallet and ship anywhere in the US for appx. $400-550. Call me/text me/email me. 954 two 70-9 two 99