Anyone recognize what brand these rockers arms are and what they fit? I got them with some other big block engine parts. Someone had a tag on them that said 1964 413 but from the little research I did 413 didn’t come with this style rocker arm. I’m assuming these fit all big blocks except a hemi but what brand are they? They only stamping I see on them are 871 and 872.
View attachment 1715910586
View attachment 1715910587
View attachment 1715910588