frankenstein pathy

[Steel]

yeah hey guys. I posted this on the engineering section, but i figured perhaps it would be better suited here.

I want to put a new engine in my pathy (93 stick 4x4) and i was thinking a large chevy V6 along with its tranny and rear end to take the power. it was somewhere around 4.7 litres or so. Anyway i have been told not to mix an match like that and to go for an Xterra SC engine, but that only brings me to 210 hp and 230 torques, But i want something that'll bring be to over 300 in both categories, and was wondering what other options i might have. thanks for the input. in any