Newb First Valvespring/Camshaft Install
12-06-2009, 01:10 AM
#1
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Newb First Valvespring/Camshaft Install Installing an ls1 hotcam kit /w the ls6 valvesprings in a 2005 lq4 6.0l truck motor. The ls6 springs came with some valve seats that are different from the lq4 ones I have. The ones in my engine contain the seal while the ls6 ones have a separate seat and seal (seal not included). From taking some quick measurements, I think that the installed height of the spring will be the same with either seat (around 1.805 and the install height spring recommendation is 1.801). Does that mean I can just use the stock seats I have, swap the ls6 springs in without any shims and call it good? Anyone know where to find stock valvespring installed heights for the 05 lq4 to back up the measurements i took?
I really appreciate the help!
I really appreciate the help!
12-10-2009, 09:38 AM
#2
You can run either style seat/seal with those springs. If yours are in good shape and not leaking, you can rock them. If they are questionable, go ahead and replace them 
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12-25-2009, 02:40 PM
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The new seats for the springs look like they need a separate oil seal which I would have to order. The engine has 60k on it but the original oil seats look fine to me.
01-06-2010, 12:24 AM
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01-06-2010, 12:39 AM
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i had it up with air but when i was putting the seal on the valve it went down its all the way in there sorry dont mean to hijack the thread im just really worried
01-06-2010, 12:45 AM
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unless you have a real small telescoping magnet i'd say your gonna have to pull the head then go back with air. is the intake off already?
01-06-2010, 01:12 AM
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No it's not that bad, just make sure you torque and degree in sequence... Why didn't you just make sure the piston was at tdc before you pulled the valve spring???
01-06-2010, 01:37 AM
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they told me it was easier to just put air in but i guess i didnt have enough pressure and also i have a 98 how do i turn the crank, if i turn it do you think the valve will come up again?
01-06-2010, 02:00 AM
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No do not try to push it up if it has fallen in the cylinder... You will most likely bend the valve, you will need a new head gasket also... In the future it is much easier to do the tdc method. This is the torque wrench i use (the third one) http://www.sears.com/shc/s/search_10...+wrench&vName=
When doing the heads you will also need to degree the bolts, draw a horizontal line across the head of the bolt with a sharpie and use that mark to judge what degree you are at...
When doing the heads you will also need to degree the bolts, draw a horizontal line across the head of the bolt with a sharpie and use that mark to judge what degree you are at...
