i have a guy i sold a 90 rx7 vert and it had a bad motor my question is what would it take for him to put the s4 block and s5 parts on what all would require changing?? i am giving him a s4 block and s5 parts that were origanally on the car. the egr is blocked off and the flywheel is a s5 flywheel and counter weight is the s4 and s5 flywheel and counterweight different?
if i could get a list of what he has to do im sure he would be very happy.

thx

 

not to sound harsh but searching would have brought up some results as this is covered alot

but anywho

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