64,You might try the classified section,& parts wanted in the blue sidebar at the left of screen. Also there are several new & a used one on ebay Motors: parts & acessories- try chevy 292 exhaust manifold Search. Also some exhaust manifolds have different exit placement and size openings & # of bolts at exhaust exit flange. Some new replacement manifolds dont have the built in heat riser. Be sure to check for a match on these things. Good Luck.
