Need exhaust manifold bolt kit

Hey All,

I need an exhaust manifold bolt kit. The manifolds are 71 standard 340 manifolds. They are going on a 273 if that matters.

I found this kit at Mancini, but it specifies that it is for the HP manifolds. I don't think mine are the HP's. Or are all 340 mainfolds considered HP?

Mancini Racing Exhaust Manifold Fastener Kit

Anyone know if this kit will still work?

Also, I am assuming since there are 12 of the conical washers that you use one under ever bolt/nut? There sure weren't 12 of them on the original 273 manifolds.

Anyhow, thanks for any info.

Chris E.