86-95 Trucks & 4Runners 2nd/3rd gen pickups, and 1st/2nd gen 4Runners with IFS

Running 3.0 valves over spec.

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Aug 26, 2019 | 06:05 AM

#1

charles.isbell85

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Running 3.0 valves over spec.

I have new LCE dual springs on my 3.0. I’m wondering about running the valves 0.01 over spec to get more lift out of the valves. Anyone ever do this?

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Aug 26, 2019 | 06:20 AM

#2

millball

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From: Southern Arizona

Don't run them tight. No performance difference in that gnats A difference.

For long, trouble-free service, set them to the wide side of the spec. Especially exhaust valves.

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Aug 30, 2019 | 06:08 AM

#3

charles.isbell85

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Ya i opted to run them stock clearance. most of them are on the high side. but hopefully the dual springs will help the heads last forever.

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