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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 05-29-2013, 01:00 PM   #1
Nightmare2012
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stroker question?

Up to how many inches can you stroke without needing machine work? If that is even possible I recently found out my passenger side pistons melted and I'm going to have to replace so I want to know what can I do to make my car stronger without machine work and actually get some added HP out of it if possible.
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Old 05-29-2013, 01:14 PM   #2
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Well if your piston is fried I'm guessing machine work is a must. Get a 4" crank and stroke it to a 400+ci. Even better sleeve it and go 427+.
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Old 05-29-2013, 01:15 PM   #3
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I always see 4.000 is the furthest you want to go.
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Old 05-29-2013, 01:21 PM   #4
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I always see 4.000 is the furthest you want to go.
4.00 on a stock block with forced induction. I think there are a couple people out there running 4.100 strokes but naturally aspirated.

On the stock cylinder, the pistons will go too far down in the block and the bottom of the piston gets exposed some if your stroke is longer than 4.00. Aftermarket companies like ERL, RED, and some others will install longer, thicker sleeves and you can run longer strokes/larger bores if you desire.
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Old 05-29-2013, 01:27 PM   #5
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I think I might be getting a 418ci rotating assembly and call it a day but the shop I'm taking it to quoted me 1600 labor + 550 machine work!.
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Old 05-29-2013, 01:28 PM   #6
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If you are looking for reliability, don't go past a 4" stroke.

stroke to either 416ci (4" stroke x 4.07" bore) or 418ci (4" stroke x 4.08" bore)

if you want 427ci+, you'll want to sleeve the block.
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Old 05-29-2013, 01:33 PM   #7
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You blew up your engine but want to avoid any machine work? I suggest a Huffy or Schwinn.
Do it right the first time and clean up the cylinders and let the rings seat properly.
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Old 05-29-2013, 01:36 PM   #8
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You blew up your engine but want to avoid any machine work? I suggest a Huffy or Schwinn.
Do it right the first time and clean up the cylinders and let the rings seat properly.
I was just looking to see if it was possible if it isn't then I might go all in with the 418.
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Old 05-29-2013, 01:51 PM   #9
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Up to how many inches can you stroke without needing machine work? If that is even possible I recently found out my passenger side pistons melted and I'm going to have to replace so I want to know what can I do to make my car stronger without machine work and actually get some added HP out of it if possible.
What caused your pistons to melt?! Are you still naturally aspirated?

To answer your question, usually if the pistons are melted at the very least you will need the block honed, but don't be surprised if the machine shop will want to do an align hone and cut the deck as well.

Now, if you get your new engine together without diagnosing why the pistons melted in the first place, you will find yourself in this position again very soon.
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Old 05-29-2013, 03:28 PM   #10
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^ Agreed! What the heck happened?
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Old 05-29-2013, 04:07 PM   #11
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Zeke says it was a tuning problem but the guy that tuned my car wrote this to me when I confronted him about it "Yes it was fine. The spark plugs are dark.if it was lean they would be white and the other side would be messed up also" he found 3 head bolts loose from the intake side and is blaming it on that, if that's even possible I'm no expert by a long shot so I'm just trying to get my options sorted out before I throw this much cash at a new 418 build. At the end of the day if it does come down to it at least I would have a "bulletproof" rotating assembly from either tsp cal speed erl or whoever can offer the best deal.
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Old 05-29-2013, 04:16 PM   #12
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With what the shop is quoting you in labor and machine work + the cost of the stroker kit you can probably just buy a stroker shortblock.

I wouldn't trust that tuner to build new motor. If I remember correctly you weren't happy with the tune either.

Either way you're looking at serious $,$$$. You could always go with a rebuilt stock shortblock to hold you over and get it back on the road.
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Old 05-29-2013, 04:19 PM   #13
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Up to how many inches can you stroke without needing machine work? If that is even possible I recently found out my passenger side pistons melted and I'm going to have to replace so I want to know what can I do to make my car stronger without machine work and actually get some added HP out of it if possible.
nightmare... you are certainly living up to your name.
what the hell happened now?

man you just need a new engine time for an LSX.
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Old 05-29-2013, 04:24 PM   #14
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nightmare... you are certainly living up to your name.
what the hell happened now?

man you just need a new engine time for an LSX.
Melted pistons man can you believe that? I'm going to go with a 418ci build and get myself HP tuner software and give matt sorian a call down at fsp for a quality tune and let him fine tune it.
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Old 05-29-2013, 04:28 PM   #15
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Zeke says it was a tuning problem but the guy that tuned my car wrote this to me when I confronted him about it "Yes it was fine. The spark plugs are dark.if it was lean they would be white and the other side would be messed up also" he found 3 head bolts loose from the intake side and is blaming it on that, if that's even possible I'm no expert by a long shot so I'm just trying to get my options sorted out before I throw this much cash at a new 418 build. At the end of the day if it does come down to it at least I would have a "bulletproof" rotating assembly from either tsp cal speed erl or whoever can offer the best deal.
Well... that isn't a terrible guess as to what caused it, but I would think that kind of info would show up while tuning it? Wouldn't you see all that unmetered air if you were using a wideband to tune?
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Old 05-29-2013, 04:29 PM   #16
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Melted pistons man can you believe that? I'm going to go with a 418ci build and get myself HP tuner software and give matt sorian a call down at fsp for a quality tune and let him fine tune it.
I feel for you brother..
hope you can get this all sorted out.
the good news if done right you'll be ready for 700+ HP blown or dope no more stock bottom end to worry about.
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Old 05-29-2013, 04:33 PM   #17
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Have you SEEN the damage? Pulled the head or did a leak down test?
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Old 05-29-2013, 04:39 PM   #18
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Well... that isn't a terrible guess as to what caused it, but I would think that kind of info would show up while tuning it? Wouldn't you see all that unmetered air if you were using a wideband to tune?
I hit 3 times below the 400 mark when on the dyno I thought that was alil suspicious but I just thought it was the stingy mustang dyno I was on.
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Old 05-29-2013, 04:40 PM   #19
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Have you SEEN the damage? Pulled the head or did a leak down test?
The guy said he was going to send me a picture as soon as he got home so I'll post it up as soon as I receive it.
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Old 05-29-2013, 04:41 PM   #20
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I feel for you brother..
hope you can get this all sorted out.
the good news if done right you'll be ready for 700+ HP blown or dope no more stock bottom end to worry about.
Hells yea after this its Whipple time and upwards of 12+ psi
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Old 05-29-2013, 05:00 PM   #21
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You're less then 200mi away from one of the best ls tuners in the country, Pat G. Do a google on him and you'll find all the info you need.
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Old 05-29-2013, 05:06 PM   #22
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Ozzy slow down bro, first off GO GET your RIDE far far away from that guy! ASAP!

Then you need to see what will be salvaged, are the heads and valves any good? How's the cam?

Youll also need to see your finances, then you need to figure out if you can handle this job by yourself or will a shop handle it? If you choose to do you have the help but most importantly the tools needed for a task like this?

Either way you'll need to send the block for machining if you keep your block because if you go stroker it will need to be machined for the longer crank stroke.

It's up to you which way you go BUT this time it needs to be done right bro.
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Old 05-29-2013, 05:09 PM   #23
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The guy said he was going to send me a picture as soon as he got home so I'll post it up as soon as I receive it.
Yes, please post pictures. Someone royally screwed up to have melted your pistons with as mild as your setup is. Obviously the tune is the first to suspect, but there are definitely many variables.
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Old 05-29-2013, 05:10 PM   #24
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I might do that as well I'll probably have to rent out a u haul though.
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Old 05-29-2013, 05:17 PM   #25
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Yes, please post pictures. Someone royally screwed up to have melted your pistons with as mild as your setup is. Obviously the tune is the first to suspect, but there are definitely many variables.
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Ozzy slow down bro, first off GO GET your RIDE far far away from that guy! ASAP!

Then you need to see what will be salvaged, are the heads and valves any good? How's the cam?

Youll also need to see your finances, then you need to figure out if you can handle this job by yourself or will a shop handle it? If you choose to do you have the help but most importantly the tools needed for a task like this?

Either way you'll need to send the block for machining if you keep your block because if you go stroker it will need to be machined for the longer crank stroke.

It's up to you which way you go BUT this time it needs to be done right bro.
Hopefully if work schedule permits I'll go pick up my car Thursday or friday I haven't seen it first hand but I'm hoping the problem didn't proceed to the heads or worst yet my cam and valve train. I talked to tsp ERL and cal speed, all great customer service btw, and gave me great quotes on some rotating assemblies but now I may be in the hunt for a full 418ci short block if that much work has to be done any who.
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