Nimitz87

iTrader: (17)

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

claytonisbob

iTrader: (1)

I wanted to ask this exact question too. I know someone here made a tool where you could use your heads and it wasn't supposed to mess up the seats or guides.

Texas_WS6

iTrader: (9)

My consern with doing it this way is how will you not throw the rotating assembly out of balance?

Nimitz87

iTrader: (17)

it won't. read the thread your taking so little material out, but that's here nor there...for this discussion looking at the method to do it with using your heads instead of a "junk" head.

my heads are milled .030" and different valve sizes, so I can't use a junk head.

Chad

Nimitz87

iTrader: (17)

yeah the only thing I have found is this http://www.lindytools.com/adjpiston.html

I know big block guys have to do this all the time?

Chad

NHRAFORMULA00

iTrader: (2)

lindy tools has been in business about 30 years,good guy to do business with.

The Reapar

iTrader: (1)

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.

VERTC6

iTrader: (1)

Yes with the Lindy tool you can use your heads just be carefull not to pull back on it while you are cutting and damage the valve seat.

Nimitz87

iTrader: (17)

ordered the lindy tool today...surprised this thread didn't get any better info.

Chad

Fritos11

iTrader: (1)

im interested in this... let me know how it goes.

tiresmokinV8

iTrader: (6)

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.

jasonsnova

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

tiresmokinV8

iTrader: (6)

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.

Nimitz87

iTrader: (17)

[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

DamianN.

iTrader: (11)

^^ why not metal head gasket?

Nimitz87

iTrader: (17)

I'm not sure I understand? cometics are MLS. (multi layer steel)

Chad

Beaflag VonRathburg

iTrader: (176)

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.