LT1-LT4 Modifications 1993-97 Gen II Small Block V8

need help on LT1 build

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Old 11-24-2010, 02:22 PM
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Default need help on LT1 build

I just bought a 94 Z28 camaro. Bone stock for $2200. Has 140k miles. I am trying to get at least 550whp out of this car. Not really wanting much more because I still want to be able to drive it around on the weekends.
I'm not really sure where to start or what mods I can use to achieve this, money is really no problem so whatever is the best for my ride is what I want. Any help at all would be great.
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Old 11-24-2010, 02:41 PM
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Well, first off, are you wanting you use the long block in the car, or just buy an assembled short block?! Also, are you wanting to achieve this N/A or spray it? The first thing I always do is suspension work.
Old 11-24-2010, 02:59 PM
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If you're looking to get to 550RWHP, you will need a serious build.
If you want to achieve this N/A, you'll need the blingest of the bling. Big-ported heads, huge cam, probably a solid roller setup (which is much more maintenance-intensive), etc.

This is easier achieved through nitrous or forced induction. Depending on whether you're more interested in turbo or supercharger, get ahold of RealQuick on LTXTech for your awesome turbo needs, or several sources for supercharger kits. BruteSpeed seems to have the S/C business on here wrapped around their finger.
Old 11-24-2010, 05:03 PM
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I was gonna use the stock block. And yea I would probably end up going with nitrous. I got 2k I'm tryin to spend this weekend. What should I start off with?
Old 11-24-2010, 05:24 PM
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The first question should be who is going the work you or a shop.... if a shop just drop it off and tell them what you want...if you are then keep reading
Old 11-24-2010, 05:33 PM
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Im going to be doing the work, i go to an automotive college and plan on doing it all there.
Old 11-24-2010, 06:13 PM
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Well... I would say pick up a good quality stall, but I really can't say what speed since this thread in very inspecific. Maybe a good 3600 or something. Again, I would say start with suspension and a stall. If you are looking to spray, I guess talk to a local machinist and let him know what your goals are. Build a stout 383 with spray... this could go so many ways.
Old 11-24-2010, 06:32 PM
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How much can I achieve with bolt ons? Not saying it will get me to my goal but I mean its a start.
Old 11-24-2010, 06:41 PM
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My guess is 280ish rwhp from full bolt ons. I would say listen to these other guys and go with stall and suspension first. That will really improve your ETs along with some drag radials.

I hope you don't think $2000 will get you a near 550 rwhp. For 550 you should look into a 9" rear and a well built trans while your at it.
Old 11-24-2010, 06:55 PM
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Lol hell no, I know it won't get me close, I am going to build my suspension first, then go with a stall. Any ideas on what kind of suspension?
Lol I'm 100% sure I could get more than 280 with bolt ons
Old 11-24-2010, 07:07 PM
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Originally Posted by Drak03
Lol hell no, I know it won't get me close, I am going to build my suspension first, then go with a stall. Any ideas on what kind of suspension?
Lol I'm 100% sure I could get more than 280 with bolt ons
I'm sorry, but that's about right for a A4 LT1 with bolt ons. I would say more if it were an M6. Who knows though you may get lucky and see closer to 300 rwhp, but I doubt it.

Get your bottom end built 355, 383, or 396 your choice. Then call up Lloyd Elliott, or Advanced Induction. They should be able to help you get to 400ish rwhp. Then call up Nitrous Outlet and they will get you the rest of the way.
Old 11-24-2010, 07:07 PM
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You won't get much more than that. Most I've seen from bolt-on LT1s is ~300HP. Not to mention dyno numbers are retarded anyway and should only be used as a tuning tool.
Old 11-24-2010, 07:12 PM
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Originally Posted by RamAir95TA
You won't get much more than that. Most I've seen from bolt-on LT1s is ~300HP. Not to mention dyno numbers are retarded anyway and should only be used as a tuning tool.
Agreed 100%. Especially with a stalled auto.
Old 11-24-2010, 07:15 PM
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Oh ok. Yea I'm probably gonna get a spare block somewhere so I can get it machined and still be able to drive the camaro, I'm just gonna focus on the suspension for now. If you know anyone that has a stock LT1 block let me know, even better if its already a 383. Then just gonna buy the rest of my internals over time
Old 11-24-2010, 07:19 PM
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Originally Posted by RamAir95TA
You won't get much more than that. Most I've seen from bolt-on LT1s is ~300HP. Not to mention dyno numbers are retarded anyway and should only be used as a tuning tool.
Before just bolting on bolt ons, consider accessing the condition of the 140k motor as well. That's a lot of miles to me.
Old 11-24-2010, 07:22 PM
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Oh of course, definitely. All things considered though, 300 is about it, +/- 5%.
Old 11-24-2010, 07:28 PM
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Yea 140k is a lot. Which is why I decided to build a seperate engine and drop it in when I got it done. Should be done by spring hopefully, I'm gonna have a build thread up whenever I get my spare block
Old 11-24-2010, 07:35 PM
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Originally Posted by Drak03
Yea 140k is a lot. Which is why I decided to build a seperate engine and drop it in when I got it done. Should be done by spring hopefully, I'm gonna have a build thread up whenever I get my spare block
Sounds good. Maybe just consider saving that initial funds for your engine build. Do it right, one time.
Old 11-24-2010, 07:40 PM
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Look into STS turbo kits, especially if you can do fab work.
and running e85 fuel
and 4l80e trans
Also consider replacing struts and shocks as the stock decarbons are awful
Old 11-24-2010, 08:32 PM
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Ok cool, ill definately look into that. Thanks



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