I put a W50 with a dellow conversion was a peice of piss just had to adapt a holden clutch fork and have a thrust bush made to suit.

The clutch was the simple part i just called direct clutch said i needed a 190mm clutch gave them the spec's of for a 200hp brass button setup and they made custom clutch and pressure plate

But have also made a custom 225mm to suit as well as most toyota celica ones that ran with a W50 are 225mm just had to get a custom flywheel made to suit which was a pain to be able to hold into the 280hp range but direct clutch were also happy to help there as well throw out was machined to suit