Clutch bolts? "Flywheel bolts", maybe? If that's the case, the clutch disc was probably installed backwards in the first place. Yes, they should be replaced, and no, they aren't a standard stock item. Most flywheel attaching bolts have a head thickness about half that of a normal bolt, and they're Grade 8, much stronger than normal bolts. I'd suggest either acquiring some original-equipment bolts, even used ones, or having a machinist thin down the heads of some correct-length Grade 8 bolts. If you choose to use lockwashers, use the star-shaped ones with the lock serrations on the outside diameter. Stovebolt flywheel bolts are exposed to crankcase oil, and split lock washers will cause a seep leak into the bellhousing.
Jerry
