that's a nice negative attitude to have....

anything will fit if
1) you are willing to relocate thigs like radiator, battery etc
2) you have an accurate tape measure, and are willing to use it a cupla times before you start and
3) have the vision to see it through.

i say you'll need to relocate the radiator forward into the nosecone a fair bit, maybe even use something thinner like a silvia single core radiator and use a big 16in thermo.

it may be a bit too high though - so a scoop might be a mandatory thing, and a lot of the weight will be well over the front wheels which will affect handling. however, if it's just a daily with a bit more poke or a drag bitch then it'll be fine.

i think the biggest issue will be sump position and transmission tunnel height at the firewall - but as i mentioned, a tape measure will remove all questions.

i say go for it.