I know that Moroso and several others make seal adapters to make this work. I am wondering if this bolts up to a 6 speed pressure plate? I know where there are several 4340 racing cranks at good prices, but all are 2 piece . Anyway has anyone done this and if so, did you have to modify your pressure plate on your 6 speed? And did it move the pressure plate any further into the tranny or away from it. Thanks for your help

 

The 1 piece rear main seal cranks have a register that is .020 larger diameter. There are aftermarket flywheels manufacured for the LT1 clutch setup (Street twin comes to mind as well as single disc clutch flywheel as well. There are flexplates available as well.

 

FYI the Fidanza part # for the single disc LT1 style with the 2 pc crank is 198661