How to flycut pistons in an LS1 for free! (almost)
05-05-2010, 04:12 PM
#61
I even contemplated wrapping a small rope around the valve stem and spinning it while someone pressed down gently on the valve stem haha. That would take a long *** time though.
05-05-2010, 09:38 PM
#62
If you had something to set your "chuck" depth so you don't go too deep, and you can fit it in there, sure, it would work.
I even contemplated wrapping a small rope around the valve stem and spinning it while someone pressed down gently on the valve stem haha. That would take a long *** time though.
I even contemplated wrapping a small rope around the valve stem and spinning it while someone pressed down gently on the valve stem haha. That would take a long *** time though.
03-29-2011, 04:06 PM
#68
This is just like the method I used. It works surprisingly well. Yes you definitely want to go ~.020 bigger than your valve size.
https://ls1tech.com/forums/generatio...g-results.html
https://ls1tech.com/forums/generatio...g-results.html
05-12-2011, 10:02 PM
#73
Just finished this today. Worked out really well! I took out .100 on the intake and .80 on the exhaust. Took about three hours total. I didnt use a wrench like the op. I checked each one of my cuts until I got to the desired cut depth. The only down side is sometimes the sand paper slips off the valve but it doesnt hurt anything but time.
I used
2.05 intake and 1.60 intake valves
36 grit sandpaper , seemed to work better than the 40 for me anyway.
I recommend this to anyone. I think I spent 30 total. 10 bucks a valve asnd 10 bucks in sandpaper. I already had tape.
I used
2.05 intake and 1.60 intake valves
36 grit sandpaper , seemed to work better than the 40 for me anyway.
I recommend this to anyone. I think I spent 30 total. 10 bucks a valve asnd 10 bucks in sandpaper. I already had tape.
05-12-2011, 10:34 PM
#76
05-16-2011, 11:22 PM
#77
10-24-2018, 12:49 AM
#79
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How deep can you safely cut? I know this is an old thread but im running into PTV issues here's what i'm running:
Ls1 stock bottom end [2000 corvette]
PRC 5.3 heads milled .015 stage 2.5 port job
TSP cam 227/234 Lobe lift .353/.353 Valve lift .600/.600 LSA 111 ICL 109
cometic .045 gasket
Comp cams 1.72 gold rockers
Ls7 delphi lifters
7.35 comp pushrods
i have no valve clearance on my intake valves they are just scuffing the pistons while rotating by hand is it safe to cut the necessary clearances into the stock pistons or am i looking at changing my build?
Ls1 stock bottom end [2000 corvette]
PRC 5.3 heads milled .015 stage 2.5 port job
TSP cam 227/234 Lobe lift .353/.353 Valve lift .600/.600 LSA 111 ICL 109
cometic .045 gasket
Comp cams 1.72 gold rockers
Ls7 delphi lifters
7.35 comp pushrods
i have no valve clearance on my intake valves they are just scuffing the pistons while rotating by hand is it safe to cut the necessary clearances into the stock pistons or am i looking at changing my build?
10-24-2018, 06:36 AM
#80
ModSquad
iTrader: (6)
I know this is an old thread but im running into PTV issues here's what i'm running:
Ls1 stock bottom end [2000 corvette]
PRC 5.3 heads milled .015 stage 2.5 port job
TSP cam 227/234 Lobe lift .353/.353 Valve lift .600/.600 LSA 111 ICL 109
cometic .045 gasket
Comp cams 1.72 gold rockers
Ls7 delphi lifters
7.35 comp pushrods
i have no valve clearance on my intake valves they are just scuffing the pistons while rotating by hand is it safe to cut the necessary clearances into the stock pistons or am i looking at changing my build?
Ls1 stock bottom end [2000 corvette]
PRC 5.3 heads milled .015 stage 2.5 port job
TSP cam 227/234 Lobe lift .353/.353 Valve lift .600/.600 LSA 111 ICL 109
cometic .045 gasket
Comp cams 1.72 gold rockers
Ls7 delphi lifters
7.35 comp pushrods
i have no valve clearance on my intake valves they are just scuffing the pistons while rotating by hand is it safe to cut the necessary clearances into the stock pistons or am i looking at changing my build?
