Sinister_Z28

Ok so i have a bone stock 98 Z28 M6 and when i was driving home last night on the freeway i heard a loud knock and i lost oil preasure. Next i saw smoke and heard metal fly off under the car as it died. After i got it home today i looked under it and i have two 1" holes in the block and i found a piston ring stuck under the car. How in the hell does this happen? I think it threw a rod but i dont understand how. All the fluids were good and it was driving fine shortly before. Ill post pictures tommorrow. Im looking for input so i can prevent this from happening in the future. Oh and the car has a 173,000 miles on it and im the third owner. Guess its time to build a 383.

SlowBurn

iTrader: (7)

Since your block is hosed anyways, why not build a 402 or 408?

1988montecarloss

iTrader: (6)

x2 or put an lq4 in it!

Sinister_Z28

Ok im pretty new to the whole stroking thing and im trying to do this on a tight budget.

35th SS

iTrader: (2)

remember those rod bolts I mentioned to you on the pm.some upgrade to the katech ones some to the arp.

RezinTexas

Then in your case I would find a stock LQ4 to swap in. You should be able to find one for around $1k with decent miles.

Stroking an engine and "tight budget" are on opposite ends of the universe.

Good luck and keep us updated with whatever you choose.

lemons12

iTrader: (71)

Check out Thompson Motorsports.. He has some amazing budget friendly choices.

ejbta2

Check out Thompson Motorsports, Kyle will help you out. He has great customer service and quality. He hooked me up.

Blackpanther99

iTrader: (8)

I would just go with a bigger cubic inch motor 383ci make great HP but why not just go with a 408? Benefit more from it

Noobinit

iTrader: (1)

408 ftw!

Old Geezer

iTrader: (3)

May it have been an "assisted suicide"??? 3 owners, beating the crap out of the car, for nearly 200K miles????

senicalj4579

iTrader: (41)

My thoughts exactly.
OP might as well make it count if you can afford it.

blknSS

Sucks now but your lucky...a 170k mile performance motor... I think that thing did its job and then some.

poltergeist 02

iTrader: (65)

same thing happened to a friend of mine. he has a Buick GS 455 that had a fresh motor. we just got on the highway, he ran it up to about 4K it knocked for a split second and boom. he thew a rod just like you. till this day we aren't sure why it happened, maybe a bad build/clearances, i don't know. just be greatful that yours had the milage that it did before it let loose. gl with your new build.

gMAG

iTrader: (1)

All things wear out, including your body.
I would stick to the light-weight block.

SSickLS1SS

it could be as simple as not having the right amount of oil in it

Sinister_Z28

As far as assisted suicide its probably true. Im the third owner and i maintain it very well but hey god only knows what its been put through. Ok so since i need a new motor and i want to stroke it because i am a fan of more cubes can someone explain to me what is a good size to go to without destroying the bank completely. This will be a street strip car.

Dirty Dog

iTrader: (2)

That wasn't suicide. That was old age. In human terms, your engine lived to be about 95 and then died from natural causes.

lemons12

iTrader: (71)

Tms has a 370 that is incredibly cheap..

meine96ws6

iTrader: (4)

170k isnt "a ton".... i mean if it was beat on then yes...

We just wrapped up a Procharger, ECS blower cam, ls6 intake manifold, lingenfelter p oil pump, new timing gears and chain, and other supporting mods such as seals and gaskets on my friends 190k mile, 99, c5...

Of course we did a new fuel pump and injectors...but its making 563 rear wheel on 9 psi.

We have a healthy tune on it, and have since added meth injection to help stay conservative.

Alsi, you don't need a stroker to make power.