Small Block & Big Block Chevy Specific - M-21 clutch ?'s

Clutch went out on my dad's 73 vette w/ a 454. Just wondering what clutch i should get to replace it and what the specs for the M-21 are. As far as input spline and disc diameter.

Thanks

Andrew

centerforce, they have good clamping force and a soft peddle

Not to hijack but I was also interested in this for a friend that has a built small block and a M21 in a '68 Camaro, he's looking for a clutch as well. Blown454ss do you have the part number for the specific centerforce clutch you're referring to?

Go to summit racing, and you'll find them. i just need to know what spline i need and what diameter i need:)

are there any different stages or is it just one clutch kit

http://store.summitracing.com/egnsearch.asp?N=700+4294908216+4294925074+42949081 89+4294925134+4294840133+4294865886+115+400420

You need to find out what input shaft his particular M21 has, as they came with both 10 and 26 splines through the years. I've got a centerforce dual friction clutch in front of my M21, looooove it. Tough as hell and surprisingly light pedal.