CDaniel525

Ya, I sure hope so as well... Fortunately I think the lifter broke apart only in the 10 seconds I had the car started to get it on the trailer as it was really loud... Before that it was just the tapping sound.
I'll have them count the roller pins to make sure they got them all

JUIC3D

Damn Chris, that looks awful.
I'm really sorry to hear of all your troubles.

Regarding the clutch choice, I think you have 2 excellent choices picked out. I was torn between those 2 clutches and ended up going with the Mantic twin disc. The guys at ECS swear by them, and given their track record, I opted to give it a shot. They even gave me a 100% satisfaction moneyback guarantee so it's tough to argue that.

I'll be placing the order for it on Friday.

Regarding a cam choice-both the spin cam and G6X3 are good choices, but they are 2 different animals.

If you want a wilder cam lope at idle, well then you can adjust some of the timing settings at idle and make it sound wilder than it really is. Ask me how I know

Joe_G

Ugg...is that a crack in the lifter bore above? That's what happened to my friend when he spun a lifter.

breecher_7

Sure looks like it to me. Not good.

Joe_G

Can they weld them and re-machine the lifter bores in the aluminum blocks now, or weld and put a sleeve in? Back in the old days we used to do that, heck, you could buy oversize lifters it was so common to re-machine them.

My buddy ended up getting a smoking deal on a new engine.

Matter of fact I have two friends who had spun lifters that broke the block. I wonder what causes these lifters to spin.

DSOMC6

If the lifter bore is bad they can possibly put in bronze sleeves (jesel's) but it's not cheap by any means.

breecher_7

Id just get a new block at that point personally. That does indeed look cracked though.

CDaniel525

Ugghhh is sure right... I see where your talking about. I emailed the shop to have them take a look and let me know... Im hoping its just some gasket material or something that fell into the motor, it was pretty dirty in there actually... But with the way my lucks been guess things will probably only get worse!

MikeSVT04

I have the same cam going in next month....now im nervous...

ctusser

I know, really makes a strong case for pulling the heads and checking and while your in there valve job, milling, flycutting.... Hard to trust just doing a cam only after reading this.

MikeSVT04

isn't the G6x3 a bigger cam than the OP? That has been used a lot in the LS3 with great success.

correct me if im wrong.

ctusser

You're right, which I'm sure is why the OP, and the involved shop thought it was safe to install without checking. Obviously there was a mistake somewhere in the process. Hopefully for the OP the guilty party will own it.

wazslow

Hopefully the block isnt hurt Chris. If you didn't have bad luck, you would have no luck at all. Hate to see these problems your having!

wazslow

As long as its ground correctly and installed correctly with the correct parts you should be fine. Mine is running awesome. I'm not sure where Chris's issue is coming from actually. Cam ground incorrectly? Install done incorrectly? Wrong springs? Who knows at this point. This is one reason I like doing my own work. Then I can only blame myself if there is a problem.

66biskwik

I wouldn't be, it looks like someone didn't do their homework when they installed it.

I don't know if you can compare an LS7 with an LS3 and I don't know the configuration except for the cube difference but I'm running a GT21 which is a lot bigger than yours. Also my heads are milled for 11.5
compression.
Specs:

Cam Number Duration @.050 Valve Lift Rocker Arm Centerline
LS1-GT21 243/259 .691/.702 1.8 ratio 112

I know someone that runs this cam with no problems in an LS3. The
key is installing it straight up.
Specs:

Cam Number Duration @.050 Valve Lift Rocker Arm Centerline
LS1-GT11 215/231 .631 /.644 1.7 ratio 118

MikeSVT04

231/238 .638”/.615” 113LSA +3 advance

Comp EHI/LXL lobes

I have PRC 650 spring kit going in..

^^^that is what I have going in.

Does comp have issues with not grinding the cam properly?


sorry to hijack your thread OP. You just have me worried now haha.

ctusser

I ran this in a 346 and it is a baby cam with its tiny intake duration and huge LSA. Idles more stock than a stock cam.

JUIC3D

Mike. Just get the cam checked on an independent cam doctor prior to installation. Bigger cams have been put in LS3s with no issue so I feel like either the cam wasn't ground properly or there are other factors involved that haven't surfaced yet.

HOXXOH

Of the 8 times someone else (including warranty by dealers) worked on my car, 5 had screw-ups of various kinds.

I've messed up a couple times, but it's a far far lower percentage and not near as costly.

the1n_Only

Did the shop check the installed height? Being that only one head was effected. Maybe the spring pockets were machined to deep a from a core shift ect.

If the cam was installed a tooth off or the cam was ground incorrectly it would have showed up on all of the pistons on just one bank. There is no way that Cam would have issues on a stock un milled head.