flycutting with L92/LS3 heads.
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From: Cooper City, FL
flycutting with L92/LS3 heads. Hi guys I had a few questions on this and how it differs from a normal ls1 setup.
I'm using PRC LS3 heads with 2.165"/1.59" Valves
my understanding is most people use a junk ls1 head and the piston cutting tool, however I don't have that luxury, is there a way to use the same heads you plan on using without messing up the seat?
also who sells/makes the piston cutting tool?
also It'll be lq4 pistons being cut...which already have a dish to them does this make it any more difficult/different?
https://ls1tech.com/forums/generatio...pistons-2.html
on the 2nd page one guy is explaining how he did it...who has done it this way?
Chad
I'm using PRC LS3 heads with 2.165"/1.59" Valves
my understanding is most people use a junk ls1 head and the piston cutting tool, however I don't have that luxury, is there a way to use the same heads you plan on using without messing up the seat?
also who sells/makes the piston cutting tool?
also It'll be lq4 pistons being cut...which already have a dish to them does this make it any more difficult/different?
https://ls1tech.com/forums/generatio...pistons-2.html
on the 2nd page one guy is explaining how he did it...who has done it this way?
Chad
Last edited by Nimitz87; Jan 13, 2010 at 10:04 AM.
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From: Cooper City, FL
my heads are milled .030" and different valve sizes, so I can't use a junk head.
Chad
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From: Cooper City, FL
I know big block guys have to do this all the time?
Chad
We have that tool here we just used on an 08 car. Tool worked well and is of good quality. Follow the directions and be careful and you wont hurt anything in the head.
As far as throwing the balance off, with a .050" cut you are only taking a max of 2 grams out. Not enough to hurt anything.
As far as throwing the balance off, with a .050" cut you are only taking a max of 2 grams out. Not enough to hurt anything.
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We have that tool here we just used on an 08 car. Tool worked well and is of good quality. Follow the directions and be careful and you wont hurt anything in the head.
As far as throwing the balance off, with a .050" cut you are only taking a max of 2 grams out. Not enough to hurt anything.
As far as throwing the balance off, with a .050" cut you are only taking a max of 2 grams out. Not enough to hurt anything.
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Read that how too and while back and I always wondered how do you make sure you have all the debris/metal shavings cleaned out of the cylinder when your done? I havent done this but I assume the tool makes the metal dust pretty fine when cutting. I plan on using it on my 6.0/l92 setup when the time comes.
TECH Apprentice
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ok im a bit confused....i'm planning a 6.0/lq4 w/l92 heads spec'd out same as this article
[URL="http://www.carcraft.com/techarticles/ccrp_0705_chevrolet_ls2_l92_cylinder_heads/index.html"
they stated they didnt have to fly cut the pistons, or is it that some of you are running bigger cams? thanks
[URL="http://www.carcraft.com/techarticles/ccrp_0705_chevrolet_ls2_l92_cylinder_heads/index.html"
they stated they didnt have to fly cut the pistons, or is it that some of you are running bigger cams? thanks
Yes people really only come into problems with the ptv clearance when they run bigger cams with more duration and higher lift run into problems especially with higher compression, since the piston is already closer to the head.
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From: Cooper City, FL
[QUOTE=jasonsnova;12837812] ok im a bit confused....i'm planning a 6.0/lq4 w/l92 heads spec'd out same as this article
[URL="http://www.carcraft.com/techarticles/ccrp_0705_chevrolet_ls2_l92_cylinder_heads/index.html"
they stated they didnt have to fly cut the pistons, or is it that some of you are running bigger cams? thanks [/QUOTE]
my heads are milled .030" from stock as well as running a much thinner head gasket (.040" cometics) versus stock, reason for this is to bump up the DCR for my spec'd out cam. IF I were running stock gaskets it would be close on cut or don't cut the pistons.
I'd still suggest measuring...it doesn't hurt to be to careful.
I got my tool but didn't look at it to much and lindytools called today saying they mixed up my tool with someone else's tool so I'll have to send this one back.
Edit: wtf why is HTML code off.
Chad
[URL="http://www.carcraft.com/techarticles/ccrp_0705_chevrolet_ls2_l92_cylinder_heads/index.html"
they stated they didnt have to fly cut the pistons, or is it that some of you are running bigger cams? thanks [/QUOTE]
my heads are milled .030" from stock as well as running a much thinner head gasket (.040" cometics) versus stock, reason for this is to bump up the DCR for my spec'd out cam. IF I were running stock gaskets it would be close on cut or don't cut the pistons.
I'd still suggest measuring...it doesn't hurt to be to careful.
I got my tool but didn't look at it to much and lindytools called today saying they mixed up my tool with someone else's tool so I'll have to send this one back.
Edit: wtf why is HTML code off.
Chad
Last edited by Nimitz87; Feb 2, 2010 at 08:20 PM.
Threads:
Lindy Tools:
https://ls1tech.com/forums/generatio...ing-tools.html
Sanding Disk on a valve:
https://ls1tech.com/forums/generatio...ee-almost.html
Either will work for you with option 2 being cheaper.
Lindy Tools:
https://ls1tech.com/forums/generatio...ing-tools.html
Sanding Disk on a valve:
https://ls1tech.com/forums/generatio...ee-almost.html
Either will work for you with option 2 being cheaper.
