There's no official "Northstar 32-valve V8 engine code 302". The Northstar engine family, produced by Cadillac, was a 32-valve *V8*, but it didn't use the "302" code. The 302 cubic inch designation is strongly associated with Ford's small-block V8 engine.
The Cadillac Northstar engines used various internal codes and designations depending on the year and specific application, but none of them were 302. You're likely confusing or combining information from different engine families.
