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mahle piston ring gaps-file to fit

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Old Dec 11, 2005 | 02:24 PM
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Default mahle piston ring gaps-file to fit

Whats the ring gap for these rings for a ls1 ,ill be using a 100 shot.First time building a ls1 from scratch,ive built tons of gen1 motors,but my first ls1.thanks
Heres the low down,its for my 73 vette and it only gets driven on occasion,so its not getting sprayed as much as it used to,back ing it down from 150 on the tpi motor ,so im thinking maybe set it up in between normal street use and nitrous.What do you guys think.Oh there being used in a 99 block with 04 pistons not mahles.I was thinking of .018 on 1st ring 2nd ring at .015

Last edited by nitrovette; Dec 11, 2005 at 02:43 PM.
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Old Dec 12, 2005 | 12:11 PM
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those gaps are too tight if you use nos. should be 22 or 24 for top ring.
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Old Dec 12, 2005 | 03:50 PM
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Consult Mahle. BTW, it will be less than .022".
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Old Dec 12, 2005 | 06:15 PM
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Hey lonslow my numbers came from my mahle spec sheet that I just end filed for my 402 btw...he said he would use nos.
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Old Dec 12, 2005 | 07:53 PM
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ok thanks guys,i got a ring gap paper from mahle today from a guy and there saying bore x.0045 1st and bore x.0035 for 2nd ring street and bore x .0060 1st and bore x .0045 for nitrous use up to 150hp
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