Needing help 6,0 flat top pistons ls3 heads
11-22-2014, 02:00 AM
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Needing help 6,0 flat top pistons ls3 heads I'm told I can run stock ls3 heads on a 6.0 with flat top pistons. I'm wanting to throw a lsa super charger on top on that combo but can I run brain tooleys stage 3 Cam specs are 231/248 .617"/.595" 120+5 with those flat top pistols will I have valve and piston slap ?
11-23-2014, 01:47 PM
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It'll be damn close. What gaskets? You'll need to clay it up to find out for sure. I did valve jobbed ls3 heads on a ls2 with .040 gaskets and it was at the limit of what I was comfortable with. If the seats haven't been cut it'll be even closer.
I'm guessing you'll have to flycut, but you need to measure. No one on the internet will be able to give you a clear cut answer.
Jack
I'm guessing you'll have to flycut, but you need to measure. No one on the internet will be able to give you a clear cut answer.
Jack
11-24-2014, 06:58 AM
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Just measure piston to valve clearance with the cam you have now. Don't make any decisions based on what the internet tells you. Measure and know for sure.
Jack
Jack
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11-24-2014, 03:52 PM
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I'll tell you this. The last time I did uncut LS3 heads on an ls2, with .040" gaskets I ended up with .075" PTV. They were valve jobbed so attribute .005" at most of that to cutting the seats. This was with an EPS lobed 228/234. Anything ~230 or bigger on the intake side with an untouched ls3 head on a stock size gasket and you're close enough to need to measure for sure.
Jack
Jack