found an ad today that sells a rebuild big block 427 with 89,000 kms on it. this is from 1979 cadillac. also it says that the owner spent $1000 on the rebuilt. curious enough but haven't called the owner yet. need help in what to ask the owner. also is it possible to have this 427 on the iroc. the caddy still runs well according to the ad and it sells for under $300. thank you for any info.