I have recently acquired a 1987 nissan pulsar with a bad engine. I have also acquired a 1999 nissan sentra, that has frame damage, with the ga16de engine. Will the ga16de fit in the pulsar?

The motor can fit like anything else, re-mount/welding engine mounts, etc. But if u gonna go thru all the trouble of swapping the ga16.. You be better off doing the sr20 swap . ofcourse you can always ca18det swap, which I was planning to do while back ,but the sr20 is super reliable and reaponds to bolt-ons big time. I have owned ga16 cars with full bolt-ons(cams, ecu,etc), but I'd still recommend the sr20. If u need further assistance, message or email me and I will help if I can.