Which 360

Bingo!

You'll need a center sump for the car and the 89 engine is a stock roller engine. That's nice. The '89 will also have the or should have the "308" heads on it. Very good, very good head. Ports out better than a letter head from what I'm told.

I'd go for the '89 roller engine myself. It'll have the spider and roller lifters ion there and you'll just swap in the cam of your choice/spec.