1.7 vs 1.8 rockers

Hi engine guru's. My ZZ502 crate engine came with stamped steel rockers (1.7 ratio). Is there enough piston / valve clearance to go to a 1.8 ratio roller rocker? Would I have to change pushrods? Would I gain enough performance to make it worthwhile or stick with the 1.7?

Thanks


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There is enough difference in tolerance stack ups from engine to engine that this is best measured for the specific engine. Generally there isn't a problem, but given the cost of fixing a parts collision I wouldn't hang my hat on that. One of those things where the probability is low but the consequence high on a risk chart.

Bogie

^^^^The change wouldn't be enough to matter keep the 1.7 JMO



Cole

Thanks for the reply guys. I'll stick with what I've got.