97 mazda engine swap

if you have a z5 under the hood right now, your options are the bp and the b6. you could probably also fit the b5.
 
alot of what? money? it will depend on the cost of the engine and how much of the work you can do by yourself to save on labor costs.
 
how rare is a bpd motor? i need to know more about the 323 gtx/gtr, they are such great sleepers, but hardly any parts for it at all, how much power at the crank does the usdm 323gtx push?
 
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