[jeffschevelle]

Question for learning's sake --

I see two different head marking sizes on this set. The larger font F and P are exactly what I am accustomed to seeing on all original 65-67 big block aluminum intake bolts. The smaller font F and P looks like what the Vette vendors sell as repro's.

So are the smaller ones from a year (or years) later than the 67 model year?

Thanks -