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I guess its not pre 1975 but I just had to say it, Subaru Justy! My favorite engine swap of all time: http://www.youtube.com/watch?v=H6ulHvShMCo

Working with what you have makes sense. I dont really have anything other than a napkin sketch of the design. I said I was "starting", but I probably should have said I was "I just drew a napkin sketch and did a search on the internet and realized it would be a fun project to do." Maybe in the next couple days I can come up with something in Solidworks that would work and run it through my company's SLM machine someday down the road to see how it all lines up. I was thinking of using Willwood UL or ULHP series... the 10.75" x .81" you mentioned looks ideal. Calipers I would go for a 4 piston since my car is less so for the track...not sure which model, but something light and on the cheaper side. I will probably use my stock 260z hubs I'd need to design a custom hat for the rotor to fit the hub. Cost is more of a driving factor than outright performance for my design. I would, ideally need to widdle the cost of everything down to below the prices of comparable brake kits from Arizona Z, etc. Especially since my stock brakes work fine. This would be more of a design excersize, something cool to put on my car that I designed myself. Anyway, thanks for the idea. I'll see what I can come up with

Hi, your design looks like it would work very well, and your model is very thorough... I was actually just starting on designing a similar setup for my Z car as well. Wilwood seems pretty good about including technical drawings on their website for modeling (looks like you use solidworks?). Did you have to basically reverse engineer the model for the hubs and spindles? Also, I am still trying to decide which size rotors and calipers to get, Wilwood has a LOT of choices. I do not think 6 piston and 12" rotors are necessary for my application but I am curious how you arrived at the decision to use 12" rotors. Hmm, what else.. oh, the hats you are using with the rotors, are they standard Wilwood hats or will they need to be custom machined? Lastly, are you planning a similar setup for rear brakes? Thanks for posting this thread, definitely got my mind thinking more clearly about my setup!