Finding The Correct Clutch for a 1968 GMC Pickup

[canadaboy25]

Hey guys, I have a 1986 GMC 910 that needs a clutch. The truck has a V8 327 engine coupled to a SM-465 transmission. The clutch disc is 11" and it is a 10 spline shaft. This site --> http://www.canadapartsonline.com/sea...9&No=10&Npp=10 has a clutch that meets my specs (the RH04072) but says that the clutch only fits a 1968: Base; 6 Cyl 3.8L; or a 1968: Base; 6 Cyl 4.1L. Is there any reason why this clutch wouldn't fit my 327, or are the mounting holes the same?

Thanks for any input.