http://www.sdparts.com/catalog/trans...mallBlock.aspx shows what GM currently offers for stick-shift small-blocks. Sounds to me like you need to get one from a pre-'86 vehicle that has the same diameter and presssure-plate bolt pattern as the one you're replacing.
If you're going yard-shopping, beware that flywheels from some (not all) 292's have bigger bolt holes (1/2") than the rest (7/16"). Also, some of the 14"-diameter flywheels were drilled for the smaller 10.4" pressure plates.