1.3 rockers

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mike75925

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what are the measurements on these. i see some companies selling 1.12:1, 1.2:1, and 1.3:1. i measured mine with a cheap caliper (micrometer) and gx340's seem to be 1:1~, stock clone or gx160 are 1.12:1. someone was talking about flattening the dimple in their rockers and redimpling the rod side further out. if that is true shouldn't it give less throw on the valve side. if you moved the dimple toward the pivot it would give you more throw on the valve side or so it seems to me. any takers on this?
 

nerfo

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I can't be 100 percent on this, but on pushrod V-8 engines, they move the dimple the pushrod sits in CLOSER to the pivot. I would think this would also be true of the OHV small engines like honda GX (and clones) as well as domestic manufactures. Understandably, the rocker pivot and valve stem really can't be move in relation to one another, so the pushrod is probably closer to the rocker pivot. I have seen some really fancy roller rockers going for about 200 bux for a set of two... but I'm not sure of rato.
 
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