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351C uses 7/16 bolt, whereas the 5.0 uses a 5/16....
I run the Crane pushrod conversion on my heads with Energizer roller rockers, and have no complaints. Easy to install, just had to grind the pedistals a bit to get them to fit. Other than that the work just fine.
Most "C" roller rockers are 1.7 anyhow, because they are big block Chevy rockers, and that thats the BBC ratio. No difference that I could tell.
I run the Crane pushrod conversion on my heads with Energizer roller rockers, and have no complaints. Easy to install, just had to grind the pedistals a bit to get them to fit. Other than that the work just fine.
Most "C" roller rockers are 1.7 anyhow, because they are big block Chevy rockers, and that thats the BBC ratio. No difference that I could tell.
