HottLS1Z

iTrader: (5)

Just wondering about anybody that has ever blew up an LS1 wondering what happened like what was the failure and cause and what were the miles & mods. Kinda tryin to get the idead or what these motors can really take before they give.

black_knight

iTrader: (1)

~80K miles, shifted into 2nd instead of 4th at the redline. Worked "fine" for a few months and then had lifter/lifter tray failure that ate the cam and lifter. requiring a total rebuild.

That was WITH a pro 5.0 shifter, too.

Been down for 10 months due to idiots, hope to get it back next week.

</been saying that for 8 months>

HottLS1Z

iTrader: (5)

Hmm yeah my buddy did something similar in his 01 WS6 did it a few too many times but the final tome he went from 2nd to first and spun a bearing.....probably didnt help the thing was somehow just over 2 qt low on oil....a week after an oil change, or so he says. Car was stock with the Hurst shifter and a loud mouth like exhaust on it (Custom) and a K&N Filter like 42K on it.

2002_Z28_Six_Speed

iTrader: (19)

Most of the ones I have seen kicked a rod out the side and knocked off the starter.

black_knight

iTrader: (1)

Oh, yeah, one of my rods was bent, too. They said it looked like detonation, but I'll be damned if I know when that happened.

Mods at the time of mis-shift were Boltons and cam.

12Gauge

iTrader: (2)

Mine went up to 194K+ before it spun a bearing.

slow trap

iTrader: (22)

i curently have a spun bearing at 30k with h/c but i believe i was low of oil and starved it.

Nemisis

Rod problem 8000 miles on a 05 GTO, yeah, not happy! I'm gonna replace it with a 402 from tsp. Mods are in sig. It happened at the track shifting from 3rd-4th, actuall I hadn't shifted yet but getting ready to@6200rpm.

freakynipples69

iTrader: (3)

With everything below, minus the forged 347, heads, and a fm14 cam instead of a ms3, I spun a bearing on the number 7 cylinder. Had 35000 miles on the stock block and I guess I just kept over-reving it too much.

monicaz28

iTrader: (5)

160k on mine before it spun a bearing. Oil was low, but it had been burning oil for sometime and just kept dumping more and more, so I think it was just getting worn out anyways. And up until that time, it always had 150 shot on it, so I don't think it's really that bad.

Slo_240sx

iTrader: (17)

I believe I spun a bearing over the weekend. As with Monica, my engine has been burning a qt every month and it was low last week so I just filled it. I ran it hard on Woodward Ave. and started to knock that got louder when I revved it. My engine is also a 98 which is notorious for oiling problems. LS1's can take abuse, but once they are oil starved or overrevved like any other engine, parts start to go bad.
-Alex

67Firebird455

iTrader: (27)

Mine came apart at 5# of boost and partial throttle. Leaned it out and it knocked the top of the #2 piston off... Never did find the piece, and it didn't do much damage to the head... Didn't go through the turbo, but I did find metallic liquid that resembled piston material.

luedecke09

iTrader: (2)

I destroyed (split a piston in half, cracked two others, snaped a rod in half, destroyed the oil pan, luckily the heads only needed minor machine work just 2 bent valves) my 98 LS1 block, mods - long tube headers, !AIR !REAR 02, Aerochamber muffler. --- This Was All While Coming Up To An Intersection, I was doing about 65mph.

Cheatin' Chad

iTrader: (3)

Lq9 in an '04 Silverado SS
Patriot Stage III
NX 250 wet
Custom Cam from TR 231/237 range
AZ Speed Headers
STOCK bottom end
Tune by me

Piston Let go along with Rod on #7 after owner was at or near WOT for 5min on highway. Approximately ten 10#bottles through the engine @250 and 20+ at 200 and 150 prior to signing off.

SS1875

iTrader: (34)

This may not count but do to a so called mechanic, my cam bolts backed out(no thread lock) floated all the valves onto pistons, 1 valve head lodge sideways in the top of a piston then took out a spark plug and damaged head. That *** cost me $7500+ car was down for 1 year and 3 months.

HottLS1Z

iTrader: (5)

Wow I'm really kinda disappointed in these motors now after all those stories well the ones under 150K anyways.

black_knight

iTrader: (1)

Really? Seems like most of these were cases of abuse. I know mine was.

CJDZ24_Z28

iTrader: (75)

1badA3Z

iTrader: (58)

mine went out running it on motor threw 2 rods out going across the finish line,it had 160k on it,they are stout just keep eye on oil pressure and make sure u keep it full to spec

gman

iTrader: (38)

Mine had about 75,000 miles on it. Full bolt-ons, heads and cam. I through rod, cracked a piston, shattered the oil pan, and bent a vavle. All I can say is thank god it happened on the dyno.