Reply to "What kind of rockers are these?"

bosswrenchMember

FWIW, on some engines- including high-buck race engines- Boss 302s, 351-Cs, 429/460s and big-block Chevys, the paired guide plates are cut in two, installed and then tack-welded in place. This corrects any geometry changes done on the heads and works as the stress level on these parts is very low.
Also, big-block Chev roller rockers with a 1.70:1 ratio will fit a 351-C, giving slightly less lift but are much cheaper than Cleveland/429/460 rockers, so these may not even be Ford-specific rockers. Even zooming in on the photo, I couldn't read the numbers....Sorry.

2/10/0910:00 AM

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