milled heads.... gaskets thickness....
05-02-2009, 12:22 AM
#1
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milled heads.... gaskets thickness.... Ok guys so heres the thing..... I got a set of stock ported T.E.A heads that have been milled 25 thousandths to make the combustion chambers 52cc. Now, the question is if the gaskets I got will work.... they are 4.125 bore, .050 compressed thickness.... and will the valves hit my pistons is a bigger question....
PLEASE....
PLEASE HELP!!!!
PLEASE....
PLEASE HELP!!!!
05-02-2009, 12:34 AM
#3
LT1s do not generally have PTV issues, especially not with a stock deck height.
FWIW, I run a zero deck, .028" gaskets, .610" lift cam and my heads were milled from 58cc
down to 56cc and PTV was not even close to being an issue.
FWIW, I run a zero deck, .028" gaskets, .610" lift cam and my heads were milled from 58cc
down to 56cc and PTV was not even close to being an issue.
05-02-2009, 01:03 AM
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Its funny u say that because today I just ordered the AI 230/238 .575/.575 110lsa cam. So let's hope ha ha..... and will those gaskets I already have work(.050 compressed thickness) or do I need different ones?
05-02-2009, 01:05 AM
#5
.050 will work, but you can certainly go thinner if you want to increase CR a little.
05-02-2009, 01:10 AM
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05-02-2009, 07:53 AM
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If your block has not been decked, your pistons are probably "in the hole" about .010" - .015". Optimal quench height is .039", so the .026", .028", or .039" will be better than the .050". Make sure to use good head bolts.
05-02-2009, 10:30 AM
#13
"Optimal" depends on the application.
How close are you willing to let those pistons come to kissing the heads?
Generally, you want to have at least .030"-.035" between piston and head to
accomodate piston rock and rod stretching in extreme weather.
In a dedicated drag car, people are willing to push that a little tighter.
How close are you willing to let those pistons come to kissing the heads?
Generally, you want to have at least .030"-.035" between piston and head to
accomodate piston rock and rod stretching in extreme weather.
In a dedicated drag car, people are willing to push that a little tighter.
Last edited by James Montigny; 05-02-2009 at 11:13 AM.
