....looking at a few different options at this point. Will keep you all posted ...
Ka Boom! Engine Bye Bye
Team Owner
Joined: Feb 2001
Posts: 27,234
Likes: 119
From: Short Hills, NJ
Yes that thing appears to be almost indestructible but the weight penalty (over 100 pounds 
more than an LS2 block) is a big downside. 
And you still have to outfit it with the strong internals as well.
An OEM aluminum block should be fine, just have to build it and tune it right.
more than an LS2 block) is a big downside. And you still have to outfit it with the strong internals as well. An OEM aluminum block should be fine, just have to build it and tune it right.
Platinum Supporting Vendor
Joined: Sep 2001
Posts: 5,730
Likes: 268
From: VENTURA Ca
Wow. Tough day. Blown engine. 
Modded with Vortech which means I eat it. I either rebuild or look for option B. All in all, I was happy with the vortech but I'd like to see more low end torque.
I'd like to maintain a stealth approach .. especially with a vert.
Any suggestions before I begin rebuild ....
Modded with Vortech which means I eat it. I either rebuild or look for option B. All in all, I was happy with the vortech but I'd like to see more low end torque. I'd like to maintain a stealth approach .. especially with a vert.
Any suggestions before I begin rebuild ....
I'm willing to come up there with my enclosed trailer at N/C and give you a killer deal on any engine combo you'd like.
I have 402 and 416 engines in stock.
I also have a fuel system that will support any power level you desire.
Let me know.
Andy
Instructor
Joined: Oct 2006
Posts: 118
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From: Florida
Race Director
Joined: Oct 2004
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Likes: 13
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Race Director
Joined: Jan 2000
Posts: 12,375
Likes: 406
From: Florida
No dosrespect, but this is the worst advice I have heard. These engines are failing left and right due to either defective valvesprings or (much worse) oiling problems leading to failed bearings. Neither problem is resolved. Plus, you can't boost them. That is the very LAST engine I would get.
My vote is 402 with forged internals so you can boost later and a nice top end for now. It will make better power than the 427 anyway.
My vote is 402 with forged internals so you can boost later and a nice top end for now. It will make better power than the 427 anyway.
Team Owner
Joined: Feb 2001
Posts: 27,234
Likes: 119
From: Short Hills, NJ
True.
I wouldn't use a stock LS7 for a boosted application either...though starting with the bare LS7 block alone and building it right might be ok. 
No dosrespect, but this is the worst advice I have heard. These engines are failing left and right due to either defective valvesprings or (much worse) oiling problems leading to failed bearings. Neither problem is resolved. Plus, you can't boost them. That is the very LAST engine I would get.
I wouldn't use a stock LS7 for a boosted application either...though starting with the bare LS7 block alone and building it right might be ok.
Race Director
Joined: Dec 2005
Posts: 11,234
Likes: 926
From: Carlsbad Ca
Too many children on this site try to blame anyone and everything for their choices.
Now,as far as a new engine, how about an LSX block? They'll be available @ the end of March? You can get some big inches with that block.
Drifting
Joined: Feb 2005
Posts: 1,321
Likes: 0
From: Catonsville MD
Detonation FTL.
Half the time people don't realize that tip in detonation is just as bad as WOT detonation. Make sure when you get your new motor and get it tuned that they don't just tune it for WOT, they drive it and listen for tip in detonation and check the AF throughout the RPM range. There is more load on the motor in 6th gear at 1500 rpm than people think.
Half the time people don't realize that tip in detonation is just as bad as WOT detonation. Make sure when you get your new motor and get it tuned that they don't just tune it for WOT, they drive it and listen for tip in detonation and check the AF throughout the RPM range. There is more load on the motor in 6th gear at 1500 rpm than people think.
Thread Starter
Racer
Joined: Apr 2005
Posts: 380
Likes: 0
From: SF Bay Area California
Here's the plan. Car's headed down south to A&A and we'll drop in a 402 along side the vortech and a few other enhancements.
Thanks a number of folks on in this forum that have helped along the way ... Rick @ Synergy, Andy @ A&A and your ideas.
More to come ...
Thanks a number of folks on in this forum that have helped along the way ... Rick @ Synergy, Andy @ A&A and your ideas.
More to come ...
Pro
Joined: Aug 2006
Posts: 520
Likes: 0
From: Houston Tx
Steven Fereday
HPE
281-448-1300
Last edited by DaWorm111; Feb 5, 2007 at 06:06 PM.
Le Mans Master
Joined: Aug 2004
Posts: 5,259
Likes: 16
From: Monroe Township New Jersey
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
St. Jude donor in memory of jpee '14
Most people want crazy amounts of power and do not realize that you have to build it right from the getgo. A conserative tune will save you many dollars in broken parts. This is the key to keeping the motor together
Last edited by Tommy D; Feb 6, 2007 at 11:30 PM.
Instructor
Joined: Aug 2005
Posts: 186
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From: Houston Texas
If your running boost i would just get a iron 402 shortblock with nice internals, get some reworked L92 heads and intake and your be all set. Sounds like a fried a piston or berings. Just make sure your compression is right for your boost. Boosting a resleved block is another thing that can go wrong.
Le Mans Master
Joined: Sep 2005
Posts: 9,864
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From: Central Florida. Black Sheep Squadron Member. 465 rwhp & 477 rwtq
Cruise-In VIII Veteran
St. Jude Donor '07
Sorry to hear about your engine. Makes you wonder that even with a small boost level you're still not too far away from blowing it.
Race Director
Joined: Jan 2000
Posts: 12,375
Likes: 406
From: Florida
I thought Foosh was coming in here to deny everything as usual, so I had to ruffle up a bit 
.
Seriously, 12 documented failures in the Z06 section, 4 at my dealer out of 13 or so cars sold (that was back in May 06), and two more I personally know of, including the very Z06 I was to drive at Spring Mtn. earlier that same day.
Sorry, but that is just not the kind of operating record I want in a crate engine or, for that matter, any engine. I just wish GM would do right by this because it impacts the whole corvette hobby and car values. Maybe they could follow BMW's lead and offer 7/100 warranties to Z06 owners. Seems only fair.
. Seriously, 12 documented failures in the Z06 section, 4 at my dealer out of 13 or so cars sold (that was back in May 06), and two more I personally know of, including the very Z06 I was to drive at Spring Mtn. earlier that same day.
Sorry, but that is just not the kind of operating record I want in a crate engine or, for that matter, any engine. I just wish GM would do right by this because it impacts the whole corvette hobby and car values. Maybe they could follow BMW's lead and offer 7/100 warranties to Z06 owners. Seems only fair.