LT1-LT4 Modifications 1993-97 Gen II Small Block V8

1.6 RR's

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Sep 14, 2008 | 01:21 PM

#1

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1.6 RR's

I might have a line on a good deal on some 1.6 RR's, just wanted to confirm there are no clearance issues with 1.6's? Has anyone ever tried 1.7's? What kind of gains can you expect from just the 1.6's?

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Sep 14, 2008 | 01:31 PM

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depends what brand they are. some clear no problem. other brands you just have to cut some of the inside valve cover webbing off which is no big deal.

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Sep 14, 2008 | 04:18 PM

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Or you could use a slightly taller valve cover, like the corvette ones.

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Sep 14, 2008 | 11:01 PM

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no issues w/ 1.6 lt4s with stock valve covers here...
1.7s, 7/16 studs,isky plates,chromoly pushrods AND VALVESPRINGS!!!
not lt4 springs either!
you should be golden..............

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Sep 15, 2008 | 05:35 PM

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You won't get major gains from just the roller rockers, I'd guess 5hp.

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