Technical are these ford or chevy rockers?

got heads back form machine shop - and they put a bunch of rockers in a box.. this is a late 70s 454 block 4 bolt main...

the gap between the rocker and retainer seem WAY too close - ironically i put on 1.5 rockers from a 350 and they seemed to fit perfectly -

So - any chance these are 454 rockers?

 

They don't look like small or big block chevy rockers to me.

 

They look like cast rockers, not stamped steel.

 

Those are 429-460 Ford rockers, it might be just a simple mix up by the shop. Another guy might be scratching his head looking at BBC rockers for his Ford heads.

 

They look like Ford rockers to me.

 

thats what i thought, very similar to my 351 rockers i had b4! well the 454 rckers are 1.7 so i HOPE he has them lol! will call 2moro - thanks guys always so straight up and helpful here!! fyi successfully re-sleeved my first attempt this week - stressful haha, use my cam bearing install tool and a weight to pull the sleeve down and turned out good! Used Loc***e on the lower half - should be good to go -