ok some of you know me and that i have a pretty clean ef si with a sohc zc and an si cable trans.i ran a 16.4 with a bolt missing on my front motor mount(stupid i know but the motor flexes if you hit it in 5th).its a high 15 sec car with a good driver but thats still way to slow.so i pickedup a z6 head along with a brand new 3 layer cometic head gasket with plans of going turbo.i sent the head out to get rebuilt and the owner of the shop said the head was fucked so i told him keep it for scrap metal lol.

my question is should i get another z6 head rebuild it and spend around $500 to get it in the car and running or just get a b18b1, and a b16 tranny with an ls 5th and spend around $1200-1400 ish?i go to school and work 30+ hours a week and im only gonna be able to put aside $200 a month for the swap.i have $400 right now i get paid $200 tomm and when i get my tax return i plan on starting whatever motor i decide to go with.

i know its alot of info and talking but i just wanted to get good opinions on what i should do.