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Reload this Page 1.6 rr's vs 1.7 rr's
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Old 02-24-2006, 10:29 PM   #1
Unit 5302
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Join Date: May 1999
Posts: 5,246
Default Re: 1.6 rr's vs 1.7 rr's
I really doubt 1.7s are going to do anything for you. Those E7s may flow worse at max lift with the 1.7s than they would with 1.6s. The heads are just not designed with high valve lift in mind. Also, if you haven't changed the valvesprings, the 1.7s will exceed the maximum .500 lift your springs were designed to accomodate.
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