difference between small block and big block rockers?
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Joined: Oct 2001
Posts: 1,462
From: smog zone adjacent to a great lake
Well, seeing no one else responded....
Does small blocks have a longer body than the big block ones? No! In addition to a 1.7 rocker ratio, the BB rocker has a pivot to valve stem contact point distance .15" greater than the SB rocker.
Years ago, this was a performance mod done to SBC heads. Modify heads to utilize BB roker arms, that is.
Does small blocks have a longer body than the big block ones? No! In addition to a 1.7 rocker ratio, the BB rocker has a pivot to valve stem contact point distance .15" greater than the SB rocker.
Years ago, this was a performance mod done to SBC heads. Modify heads to utilize BB roker arms, that is.
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