ZZP series 1 ROLLER ROCKERS 1.8 ratio?!
#24
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So, would the problem with using the ZZP rockers on earlier heads be that the mounting studs are the wrong size? Can this be worked around?
#25
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Originally Posted by J Wikoff
They have 5/16, which they think is 93-95, but I can't remember which it is.
88-92 used the larger bolts
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#29
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Keep in mind, the L27 and L67 starting in 93 had roller fulcrum. This was maybe only a 5hp gain over the 92 L67 and L27. The gain is from the ratio itself. Even the roller tip won't gain any amount of horsepower you could characterize or claim.
#30
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Even the roller tip won't gain any amount of horsepower you could characterize or claim.
I gained 2whp for going to roller tips on 130lb springs. NO other changes! And another 11whp moving to 1.7 rr'*.