I found a good GM rebuild manual for this series of engines on Ebay. You should also check out www.inliners.org. The 292 and 250 seem to be favorites there. This is a good book if you're thinking about souping it up. It's devoted entirely to the 292 L6.
http://www.amazon.com/Chevrolet-Inl...088&sr=8-1&keywords=leo+santucci


'64 swb stepside (gone)
'57 1 ton
'53 phone truck
'59 swb
'46 1 1/2 ton
'68 swb gmc