So I was cruisin down the freeway at like 60mph and revved up to 6k and it sounded wierd....so I shifted and then started to get on it and suddenly it sounded like I sucked a sock thru the intake and shot it out the back. Then the check engine light comes on and it loses power and runs rough. I pulled over and shut it off right away, then a few seconds later started it again to move it further over....andit blew TONS of white smoke and it just sounds gawd awful. Its a z06 supercharged with 49k....I was running good gas and Im really at a loss as to what could have gone wrong. Any ideas guys!!???

I wont be able to diagnose it until later this week...but any ideas guys please.

Dustin

 

my guess is head gasket,,,,

 

maybe head gasket

 

good news is it doesn't matter what happened to it Now you have a chance to build the hell out of it ...get you a forged block and make some real power
congratulations

 

sorry but i think it is a broken piston

 

Either a head gasket or a piston and it is time for go forged and turn up the booooooost

 

White smoke = coolant. What water temps?

 

Haha, wonderfull just what I needed =). Well when I pull it apart I will know for sure, I think maybe I had some detonation caused by the oil vapor...??! Where is a good place to get the forged blocks and parts I would need?

And the funny thing is that I was watching the temps and the coolant maybe got to 200 if that, the oil was prob 217 or so and everything was in order, I didnt even hear pinging.....this sucks.

Dustin

 

I got my forged block from A&A Corvettes and after 8k of lots of boost you can say I am a happy customer. Also have heard nothing but good things out of ECS customers and LME ones

 

347 LS6 forged pistons & rods (stock crank) $2,699 no core $0 Texas Speed (TX) Special $2,699
347 LS6 forged pistons & rods (stock crank) $2,789 no core $0 SDPC (TX) Post $2,789
347 LS6 forged pistons (stock rods & crank) $2,095 plus core $800 Lingenfelter (IN) $2,895
_____$3,000+_____
370 Iron forged pistons & rods (stock crank) $3,299 no core $0 MTI (TX) $3,299
347 LS6 Stg1 forged pistons (stock rods & crank) $2,395 plus core $1,000 Rapid Motorsports (PA) $3,395
347 LS6 forged pistons & rods (stock crank) $2,595 plus core $1,000 FLP (IL) $3,595
402 Iron forged pistons, rods, crank $3,599 no core $0 Rapid Motorsports (PA) $3,599
347 LS6 forged pistons & rods (stock crank) $2,600 plus core $1,000 (est core) HPE (TX) $3,600
347 LS6 forged pistons & rods (stock crank) $2,700 plus core $950 Cartek (NJ) $3,650
347 LS6 forged pistons & rods (stock crank) $2,799 plus core $1,000 (est core) Speed Inc (IL) $3,799
402 LS2 forged pistons, rods, crank $3,800 no core $0 Texas Speed(TX) Special $3,800
402 LS2 forged pistons, rods, crank $3,900 no core $0 Tbyrne Motorsports (MA) $3,900
347 LS6 Stg1 forged pistons & rods (stock crank) $2,995 plus core $1,000 A&A Corvette (CA) $3,995
347 LS6 forged pistons & rods (stock crank) $2,995 plus core $1,000 MTI (TX) $3,995
347 LS6 forged pistons (stock rods and crank) $3,000 plus core $1,000 (est core) ARE (CAN) $3,995
347 LS6 Stg2 forged pistons (stock rods & crank) $2,999 plus core $1,000 Rapid Motorsports (PA) $3,999
402 LS2 forged pistons, rods, crank $3,999 no core $0 Rapid Motorsports (PA) $3,999
_____$4,000+_____
347 LS6 forged pistons & rods (stock crank) $3,095 plus core $1,000 Thunder Racing (LA) $4,095
402 LS2 forged pistons, rods, crank $4,095 no core $0 SDPC (TX) Special $4,095
347 LS6 S2 forged pistons & rods (stock crank) $3,595 plus core $1,000 A&A Corvette (CA) $4,595
403 LS2 forged pistons, rods, crank $4,595 no core $0 Lingenfelter (IN) $4,595
383 LS6 forged pistons, rods, crank $3,995 plus core $650 Thunder Racing (LA) $4,645
382 LS6 forged pistons, rods, crank $4,395 plus core $600 FLP (IL) $4,995
370 Iron forged pistons, rods, crank $4,900 no core $0 ARE (CAN) $4,900
_____$5,000+_____
408 Iron forged pistons, rods, crank $5,000 no core $0 Cartek (NJ) $5,000
382 LS6 forged pistons, rods, crank $4,500 plus core $600 Cartek (NJ) $5,100
402 LS2 forged pistons, rods, crank $5,395 no core $0 Rapid Motorsports (PA) $5,395
408 Iron forged pistons, rods, crank $4,600 plus core $1,000 (est core) Speed Inc (IL) $5,600
408 Iron forged pistons, rods, crank $5,995 no core $0 Rapid Motorsports (PA) $5,995
402 LS6 forged pistons, rods, crank $5,995 no core $0 Rapid Motorsports (PA) $5,995
_____$6,000+_____
408 Iron forged pistons & rods (stock crank) $6,295 no core $0 MTI (TX) $6,295
408 Iron forged pistons, rods, crank $6,296 no core $0 FLP (IL) $6,296
383 LS6 forged pistons, rods, crank $5,395 plus core $1,000 (est core) Rapid Motorsports (PA) $6,395
383 LS6 forged pistons, rods, crank $5,795 plus core $800 Lingenfelter (IN) $6,595
388 LS6 forged pistons, rods, crank $5,700 plus core $1,000 (est core) ARE (CAN) $6,700
383 LS6 forged pistons, rods, crank $5,795 plus core $1,000 A&A Corvette (CA) $6,795
412 LS2 forged pistons, rods, crank $6,995 no core $0 Rapid Motorsports (PA) $6,995
_____$7,000+_____
396 LS6 forged pistons, rods, crank $6,000 plus core $1,000 (est core) ARE (CAN) $7,000
408 LS6 forged pistons, rods, crank $6,995 plus core $1,000 A&A Corvette (CA) $7,995
427 LS6 forged pistons, rods, crank $7,995 no core $0 Rapid Motorsports (PA) $7,995
_____$8,000+_____
427 LS6 forged pistons, rods, crank $7,500 plus core $600 Cartek (NJ) $8,100
409 Iron forged pistons, rods, crank $7,900 plus core $400 (est core) ARE (CAN) $8,300
427 Iron forged pistons, rods, crank $8,350 no core $0 ARE (CAN) $8,350
385 LS6 forged pistons, rods, crank $7,550 plus core $1,000 (est core) ARE (CAN) $8,550
396 LS6 forged pistons, rods, crank $7,850 plus core $1,000 (est core) ARE (CAN) $8,850
427 LS6 forged pistons, rods, crank $7,500 plus core $1,000 (est core) Speed Inc (IL) $8,500
_____$9.000+_____
427 LS6 forged pistons, rods, crank $9,000 plus core $1,000 (est core) ARE (CAN) $10,000
441 LS6 forged pistons, rods, crank $9,300 plus core $1,000 (est core) ARE (CAN) $10,300
427 C5R forged pistons, rods, crank $11,995 no core $0 FLP (IL) $11,995
427 LS6 forged pistons, rods, crank $12,639 no core $0 Lingenfelter (IN) $12,639

 

Sounds like you chunked out some pistons, cracked the block in four places and the heads are now shot and need a major overhaul, Your Intake will need to be replaced as well as your clutch, supercharger system and you will need to add alky. Your fuel system is not up to par so that will need to be completely replaced.

Let me know how far off I am on this guess.

 

I hope your joking

 

I think your blew out your muffler bearing. But luckly, they are only $50. http://kalecoauto.com/index.php?main...products_id=10

Pull your plugs and see if any are wet, and then do a compression check. Check to see if you have water in youru oil too. Sorry to hear about your motor. Hope you get it back running soon.

 

No he's pretty serious...it kind of happened that way for me back in 2002 when I had a S/C running on a stock LS6 with a chitty tune. Walbro pumps really weren't out yet and I was dependant on the stock pump and an inline pump....I think that would have even worked but the numb nut who tuned it..tuned it to 13.1 afr...unfortunately I was among the first of many too follow.

The white smoke can be deceiving to...if oil sprayed out (like from a popped up dipstick)...it can burn on the header and make lots of white/blue smoke too. It's only really blue/grey when its getting mixed with fuel and sent out through the exhaust valves and cats.

The good news is that maybe it didn't scar up the walls of your cylinders too bad and all you will need is some forged pistons (3.905") over bore and new rods to rebuild.

I have put over 800 rwhp and torque using the stock crank...so don't waste your money on a crank unless you want to go to a 4-4.125" stroke.

 

I am not joking... (I am on the supercharger, clutch and fuel system) but not on the rest of my prediction.
I know this is all possible because... all that happened to me years ago.

I did go overboard on the supercharger rebuild... and only did so because I upgraded my supercharger system when I had my new engine built.

 

Well the thing is, the smoke was only coming from the tail pipe first off....so Im thinking I was burning coolant? Does coolant burn white? And the noise I heard wasnt like a metal on metal, it was more like a *PUUFF* and then I shut the car down with in 20 seconds.....and it wasnt making bad noises, it just wasnt idling and it didnt have a whole lot of power.....Ill see what the check engine light code is tomorrow....that might tell me more wont it?

Dustin

 

What brand of forged pistons would you guys recommend. I would probably just replace the pistons....I dont know about the rods....would it be necessary?

Dustin

 

Steve has very easy miles on his motor

 

I have a 383 And I really like it

 

You can probably use the same blosk, I did..I went to a 383 and had it done locally blu printed and balance ! ! !