byrontaylor

Last night I sprayed 125 dry into my 2000 ls-1. Basically stock, it started "ticking" shortly afterwards. I figured a bent pushrod. Pulled the valve covers, pushrods ok, valve springs ok, rocker arms ok, good compression, pulled the plug and something had hit it knockin the gap out and breaking the plug (it was split). I'm assuming the piston has come apart but it does fine driving after replacing the plug. still ticking but runs good. Anyone else had this happen? What was it? What else could it be? Could it be the lifters? I think it's a little too loud to be the lifters. I don't think it's the rods or crank. Any help wouild be greatly appreciated.

May need to buy some pistons...pm me if you have a set. May also need lifters. pm me on that too. May be selling NX kit, pm for more info....lmao

DrkPhx

iTrader: (15)

ruh-roh. You need to pull the heads. I wouldn't drive it anymore until you verify the problem.

crizain

You are going to have to pull the heads and check the pistons for yourself. If you want to see for yourself beforehand, drain the oil, you should find some metal in there.

byrontaylor

Will drain the plugs tonight, will have to work tomorrow so probably won't get around to pulling the heads til this weekend. I'll let you know what I find out and keep you updated. Hopefully it won't be too bad. What all do you have to do to take the heads off? It will be the passenger side, #7 hole did it. Remove the power steering pump, intake/exhaust manifolds, valve cover and is that it? Also I need new head bolts as well right? These are not reusable if I am correct. Is this a job I can handle w/o specialty tools? What do you think.

B18B1LS1

iTrader: (12)

My guess is that the pistons are coming apart. Mine did this awhile back too, sounds exactly the same as what happened to me. Good luck with it.

VSGLS1

iTrader: (8)

Sounds like the rear pistons saw a lean condition and detonation....Good luck. You will need new bolts unles you have ARPs and new head gaskets at the minimum.

ss rally red

iTrader: (8)

A part of the piston above the ring is my guess, #7 or #5.

CamTom12

iTrader: (1)

Happened to a friend of mine, #7. He was building a forged motor in the garage anyway so he just squeezed it till it blew, haha

2xLS1

iTrader: (25)

I'm pretty sure these are being sold by a member here that goes by the name Wolfee. (rods and pistons)
http://cgi.ebay.com/ebaymotors/ws/eB...sPageName=WDVW

tim99ws6

iTrader: (31)

I got a set of stock rods/pistons, and a set of ARP Pro-series i was gonna install on them....

B18B1LS1

iTrader: (12)

Mine was #8

Lvmyz28

iTrader: (1)

Sounds like you had some detonation problems. Proly took out the ring land and got it stuck between the piston and valve. Take some pics and show us what happened!

GuitsBoy

iTrader: (4)

Heres a link to the head swap procedure. Read it, know it, use it, love it.

http://www.ls1howto.com/index.php?article=3

byrontaylor

I'm assuming that you guys are right, put it on the scanner and it says #7 has had multiple missfires. I will keep you all up to date. the oil didn't have much of anything in it though. I'll take pics and post em as soon as I get the heads off. Prolly tonight or tomorrow. Thanks for the help guys.

v8maro

iTrader: (4)

Good luck with it man. You might have been lucky since nothing came out of the oil. Post pics once u know.
-Steve

BrentB@TEA

I lost number 7 the same way. Lifted the ring land. It would show good on a compression check but failed leakdown

byrontaylor

I haven't had time to check it all out yet but if it is a piston, would changing to forged knock this problem out still spraying? Also, would this be the time to try and find a 6.0 and put my heads on em assuming they are still good? What would the horse power be roughly stock 6.0 and my heads? The only thing that I would have to change would be the oil pan right? Would computer and all still be ok or would I have to have it programmed w ls1edit or hptuners? Do I need the pcm from the vehicle it came out of or use my own from the ls1?