I can't believe how hard it is to find locally a 3/16" x 1 3/4" woodruff key for the crankshaft on my 351M (P.O. partially disassembled it and lost the key). Tried several auto parts stores & hardware stores. Idiot at NAPA told me he never heard of a key for the harmonic balancer, because his Honda didn't have one.
Anyway, I ended up disassembling a 460 I have in my garage to steal the key, so I can get the 351M back together.
for what is worth my man, i have a brand new one in escrow,ie in stock. so to speak, its yours if you have no luck elsewhere. i am around, let me know. NO STRINGS, its for YOU and our cause as i see it. as always, later me
paul k berwyn md.