82 Buick Electra 402 swap

[82electra]

Hey guys I’ve currently got an 82 Buick Electra with a 307 I have a Buick 402 I’m looking to swap into it.Im really just looking to know the best way to hook up the wiring harness are they interchangeable or will I need to get a new universal harness?

 

[ulycyc]

Buick didn't make a “402” engine. Chevy made early crate small and big block 402 engines. Olds made a “403” engine that was used in Buicks. Also Buick made a very early 401 nail head engine but I doubt you have that. Clarify what you have before any help can be given