The 3.3L V-6 needs rebuilding. My Question is whether the 3.3 is just a short deck small bore version of the 3.8 of the same year. The 3.3 has a 3.7" bore and the 3.8 has a 3.8" bore. will all other parts interchange? Can the 3.8 piston kit be used if the block is bored to 3.8"? Thanks Sonny
parts interchangeability on 1993 Buick Skylark
by Visitor in Corpus Christi, TX on April 18, 2010
ANSWER by mastertech6371 , April 18, 2010
your computer will run the 3.8 with 3.3 info. it will cause drivability issues. stay with the same motor and parts. not like the old days that you could interchange engines with no problems. Roy
ANSWER by matte , April 18, 2010
You just can't be sure that the parts are interchangeable unless you're matching the engine code in the VIN with the part numbers. It's likely that most parts will work, but it is best to be sure.