Waste of money or advantage?
04-21-2006, 08:16 PM
#1
Waste of money or advantage? I'm getting ready to install my goodies: 90/NW90, March pulley, Cometic .40 gaskets. My question is, are the gaskets that important or not? I'm currently running LS6 stage II heads milled to .030 w/ stock head gaskets at 10:8:1cr. Will I benefit by switching them out? I need pros and cons.
04-22-2006, 01:45 PM
#3
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Pro - It will tighten the quench area and raise compression resulting in more power.
Con - The .040 gasket combined with the .030 milled heads may cause piston to valve clearance issues.
Con - The .040 gasket combined with the .030 milled heads may cause piston to valve clearance issues.
04-22-2006, 01:47 PM
#4
TECH Senior Member
Installing thinner gaskets will reduce piston to valve clearance.
Could be that your G5X2 will kissy kissy the pistons with that gasket, with a .030 mill the PTV is already tight.
Could be that your G5X2 will kissy kissy the pistons with that gasket, with a .030 mill the PTV is already tight.
04-22-2006, 05:20 PM
#6
Originally Posted by JZ'sTA
Also you have more then 10.85:1
I would say your closer to 11.25:1 compression if you have LS6 casting heads milled .030.
I would say your closer to 11.25:1 compression if you have LS6 casting heads milled .030.
04-22-2006, 10:18 PM
#7
Oh I didn't know there was flycuting done.
I know those at LG are good but the math dosent lie.
Unless your piston is crazy and in the hole like 10 thousands.
Most LS1's are out of the hole 6-8 thousands.
So when you do the math you have to do a -.007 on avarage.
Some use a -.008 but the difference is almost nothing.
I know those at LG are good but the math dosent lie.
Unless your piston is crazy and in the hole like 10 thousands.
Most LS1's are out of the hole 6-8 thousands.
So when you do the math you have to do a -.007 on avarage.
Some use a -.008 but the difference is almost nothing.
