Guys, something that occured to me just now as I am looking at some of the parts I have lying around here is this:
The 350Z flywheel is thicker (by approx. 15mm) than the 300ZX because it is dual-mass.
I have a Jim Wolf 350Z flywheel siting here, and if the Mazworx plate is 15mm thick (heard that somewhere), then this would work great for a 300ZX transmission bolted to a Mazworx adapter without machining the bellhousing.
Install a longer pilot bushing, or a pilot spacer and you're ready to rock.
Anyone interested in the flywheel I have can take it for $300, it has dual bolt patterns, 350Z and 300ZXTT. I also have a spec stage 3 pressure plate to go with it.
Both are brand new, $500 takes both and I will include a clutch disc that I took apart to try and change the hub offset (probably useless now)
Or make me an offer.
