I would assume it allows the crank to spin some what quicker (aluminum) but for what you have (sig) not worth the money just get yours cut. just my .02
well just an update....took the car in today...didnt get the car in the shop until about 5th hour because we had to finish a break job on this p.o.s truck that was on the bay i needed to put my car in...so in about 45-60 mins we got everything off and then i dropped off the flywheel to get it turned at the local parts store...hopefully it will be done tomorow...does anyone have any installation tips or is it pretty straight forward?
well little problem...cant seem to get the input shaft all the way back in...it's all lined up...but stops about 1/4 inch from going all the way in...any suggestions?
well just an update...finally got the trans back in after about an hour of wiggling it and then put the rest of the car back together in about 20 minutes...anyways...the ford racing king cobra clutch is unbelieveable....it grabs so fast i almost stall just taking off...gonna have to get used to this....is there a break in period or can i still race this wknd?