I have an rx-7 1989 and it has an cesed motor ... well what i was wondering was if i could swap the block out with an 1985 rx7 block 12a .. im working on getting my car on the road soon so i can build a new motor to slam up in it when it gets done... so to another question i have ..... is there a masazine i can order parts to parts to order and costomly build the motor?