Roller lifter WTF???

[BAD LS1]

Upon totally dissaembling 12 of the 16 lifters from the infamous KB vette i run accross this special lifter... This is very much a crack in the bearing surface of the lifter! Needed to clean out all the shit oil/ metal particles from the disingrated rings.

When looking at it in a magnifying glass you can see it was like ripped apart

HOW THE FUCK does one crack a hydraulic roller on the bearing surface?? Im sure the misadjusted valves and 8K rpms hada little something to do with it! 200 miles on these.

[juicedimpss]

does the crack follow through to the axle?


i would suspect loose lifter bores,allowing the lifter to side load.that is what id be checking out first.

[BAD LS1]

does the crack follow through to the axle?


i would suspect loose lifter bores,allowing the lifter to side load.that is what id be checking out first.

Sharp eye i didnt even see that, but a closer look at the lifter and its got a small hairliner along the bottom lip where you circled in pink too!! WTF?!??

It does not go into the axle though, just along the rim.

Did i mention the rev limter was set to 8k with hyraulic lifters?

[94greenbandit]

Just put a little solder in there and it should be fine

[BAD LS1]

being its someone elses abortion, im not suprised to see that done somewhere else. yet...

[Breecher_7]

I just called Josh...

[Reverend Cooper]

holy ******* shit,2 minutes to meltdown,everyone say what a broken lifter does to a cam ask sam.that motor might as well just be replaced,I would be scared to use anything from it after see all this

[Breecher_7]

holy ******* shit,2 minutes to meltdown,everyone say what a broken lifter does to a cam ask sam.that motor might as well just be replaced,I would be scared to use anything from it after see all this

crank and rods are being reused. Pistons are being replaced. Obviously that lifter will need to be replaced.

Still waiting on word from the machine shop of weather the block is fucked.

[Reverend Cooper]

like i said,throw it out,start over fresh.

[Breecher_7]

like i said,throw it out,start over fresh.

Easy to say when its not your dollar. There is no reason to toss stuff that is fine. Machine shop is going to go over everything before it gets re-assembled. Like i said above though, most of the big dollar stuff seems to be ok so far. Crank, rods, cam, hardware, still waiting on test results for the block and heads. Valvetrain is all ok other then that lifter, especially now that tom took the time to dissasemble all of them.

If the block ends up being crap its getting a iron 6.0 block...

[88Nightmare]

I do not know much about valvetrains, but if you intend to be able to spin to 8000rpms, what kind of valvetrain would be best? solid lifters?

[juicedimpss]

I do not know much about valvetrains, but if you intend to be able to spin to 8000rpms, what kind of valvetrain would be best? solid lifters?

yep,hydros will pump up at that rpm,and they are too heavy to be stabil also.

[Breecher_7]

And to update this, The block is back from the machine shop and is also junk, bores are out of spec....

So Far...

Block JUNK
Lifters JUNK
Pistons UNACCEPTABLE
Oil Pump JUNK
Rod Bolts WRONG
Cam Bearings JUNK
Main Bearings JUNK
Crank WAS SAVED, YOU SHOULD SEE THE PIN JOB NUMB NUTS DID ON THIS!!!
Injectors WRONG
MAF CUSTOM ONE ORDERED, NOT BEING USED
Clutch JUNK WITH 300 MILES ON IT!


What will tomarrow bring? Who knows....

Anyone got a 6.0L Iron block laying around?

[Reverend Cooper]

Like I said better off starting with new stuff,now there is no choice,no offense but really its probably better off this way.

[Breecher_7]

Like I said better off starting with new stuff,now there is no choice,no offense but really its probably better off this way.

Agreed.

It will hopefully be back together come summer, Josh's wife has about had it though, I think she locked down the bank account.

[UnderPSI]

I got my iron block from speed inc. Was a decent price for a new one.

[Waver]

And to update this, The block is back from the machine shop and is also junk, bores are out of spec....

So Far...

Block JUNK
Lifters JUNK
Pistons UNACCEPTABLE
Oil Pump JUNK
Rod Bolts WRONG
Cam Bearings JUNK
Main Bearings JUNK
Crank WAS SAVED, YOU SHOULD SEE THE PIN JOB NUMB NUTS DID ON THIS!!!
Injectors WRONG
MAF CUSTOM ONE ORDERED, NOT BEING USED
Clutch JUNK WITH 300 MILES ON IT!


What will tomarrow bring? Who knows....

Anyone got a 6.0L Iron block laying around?

Damn he really done f'ed up that car didnt he....

[Breecher_7]

Damn he really done f'ed up that car didnt he....

Come see it...... Its literally a paperweight right now. Ive got the entire thing torn apart. Engine out, trans out, rear end out, rear cradle out, interior ripped out...

Its a mess, but its getting fixed.

I dont know everything, but im not affraid to ask for help when I need it... Hell it took me 3 days and alot of talking with people to figure out the fuel system on the damn thing, but that is what wasnt done in the first place.

[wrath]

What kind of block is the bad one? I might be interested in it. haha.

[BAD LS1]

its an LS6 block, it was bored over to 3.905" which is the limit and now its wore about .002" more on the thrust sides. nothing more can be done with the block unless resleeved. Plus the lifter bores are probably fubared due to the lifters starting to fatigue as seen in the start of this thread.

The owner of the car is looking for a lq9 or lq4 6.0l iron block of 03' and older vintage. the blocks were the same between the two. 04'+ all use equal length head bolts which is fine, but it more of a cost savings to not have to buy new head studs. the 03' and older use the long head bolts that go into the main cap webbing.