68-76 4 speed pedals compatibility?

Mtrhead said
Get the HD ones from high performance car like 383 or 340...the HD ones have a braced in area where spring is and larger spring....they sell for about $150 extra......really sturdy pedal....they have bearings instead if bushings...Holy grail abody pedals

Hey
Wondering if you can help ID these if they are Hd or 318. I don’t think there from a slant but just hoping someone can ID these a body peddles and if they are 340. I would be happy with even 318 pedals as using a stocking type clutch and I a friend that says he uses Slant pedals on all his conversions and never had an issue. I just don’t want any last minute headaches or isssues