Engine kit fits all years and variations HONDA 4 cylinder CB550 / CB500 1971-1978
socket allen bolts are used in place of pan heads for ease of use. these are hand polished, knurls removed.
Not just a bag of bolts, specifically designed to fit cb550/500-4  - comes with instructions, and sorted.

cb550/500 kit includes: a:left front cover 5 pieces b:kicker pinch 1 piece c:shifter pinch 1 piece d:intake 16 pieces e:starter cover 4 pieces f:sprocket/chain cover 4 pieces g:exhaust 16 pieces h:right cover 13 pieces i:valve cover 26 pieces 85 pieces total

here's a pic of another kit we do (Cb750) which is kinda similar.. - so you can see the quality/finish