# Valve Clearance

**URL:** https://forums.speedlife.net/t/valve-clearance/194014
**Category:** PittSpeed Automotive
**Created:** [December 4, 2007, 10:26am UTC](https://forums.speedlife.net/t/valve-clearance/194014 "2007-12-04T10:26:21Z")
**Posts on this page:** 6
**Page:** 1

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### Author: ![AeroKing](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/aeroking/32/6011_2.png) [@AeroKing](https://forums.speedlife.net/u/AeroKing)
#### Post date: [December 4, 2007, 10:26am UTC](https://forums.speedlife.net/t/valve-clearance/194014/1 "2007-12-04T10:26:21Z")

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What is an acceptable valve clearance??

the heads I’m having done have a max clearance of about .590~.595

i’m running 1.6RR roller rockers, and a custom grind cam. the cam ends up at 560ish lift factoring in the RR.

so i would have about .030 valve clearance.

too little??

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### Author: ![Jeff95TA](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/jeff95ta/32/5935_2.png) [@Jeff95TA](https://forums.speedlife.net/u/Jeff95TA)
#### Post date: [December 4, 2007, 12:41pm UTC](https://forums.speedlife.net/t/valve-clearance/194014/2 "2007-12-04T12:41:37Z")

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I thought people usually shoot for around 0.08" intake & 0.10" exhaust. (?)

I would actually check with clay and a checker spring to make sure once the cam is installed.

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### Author: ![Quik83Z](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/quik83z/32/6042_2.png) [@Quik83Z](https://forums.speedlife.net/u/Quik83Z)
#### Post date: [December 4, 2007, 12:59pm UTC](https://forums.speedlife.net/t/valve-clearance/194014/3 "2007-12-04T12:59:03Z")

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.030 is too close. ^^^ He’s right, .08 and .10 are more like what you want.

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### Author: ![Sinner6.0L](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/sinner6.0l/32/6016_2.png) [@Sinner6.0L](https://forums.speedlife.net/u/Sinner6.0L)
#### Post date: [December 7, 2007, 1:01pm UTC](https://forums.speedlife.net/t/valve-clearance/194014/4 "2007-12-07T13:01:47Z")

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yeah definitely too little

fly cut the pistons on the motor!!! 😃

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### Author: ![AeroKing](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/aeroking/32/6011_2.png) [@AeroKing](https://forums.speedlife.net/u/AeroKing)
#### Post date: [December 7, 2007, 1:05pm UTC](https://forums.speedlife.net/t/valve-clearance/194014/5 "2007-12-07T13:05:44Z")

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nah, i’ll have the valve seats adjusted, or get those +.050 valve locks.

the heads are being worked on as we speak, and he said he’ll take care of it.

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### Author: ![Orr89rocz](https://avatars.discourse-cdn.com/v4/letter/o/ac91a4/32.png) [@Orr89rocz](https://forums.speedlife.net/u/Orr89rocz)
#### Post date: [December 7, 2007, 1:24pm UTC](https://forums.speedlife.net/t/valve-clearance/194014/6 "2007-12-07T13:24:35Z")

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you talkin about having .590 max lift on the head, and your running .560? i think that will be fine as long as you have good springs and components. i’ve heard its best to keep clearance around .060" tho