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

well thanks guys

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Old Jul 15, 2009 | 12:10 PM
  #21  
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500 REAR WHEEL power and 500 HORSE POWER are two VERY different things.

Please clarify.


Most NA hp I have seen out of an LT1 is N20dave he made 700 ish. But has sb2 heads.

Most on a 23* head? Probably Rick Abare, he is in the 650+ area at the flywheel.


Bring yo checkbook to get anywhere near those 2.


Mine makes probably 585(ish) at the flywheel.
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Old Jul 15, 2009 | 12:11 PM
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Originally Posted by lifeisgood
i dont see stock heads and intake going 500whp,
With some Ai 200cc heads and intake on a 383, solid roller, six speed, 3.42 gear and street tires on the dyno...I could see it. Or get pretty close.
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Old Jul 15, 2009 | 12:15 PM
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Originally Posted by FASTFATBOY
With some Ai 200cc heads and intake on a 383, solid roller, six speed, 3.42 gear and street tires on the dyno...I could see it. Or get pretty close.
Agreed, but definitely not with a LT4 hot cam...
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Old Jul 15, 2009 | 12:20 PM
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Originally Posted by lifeisgood
i dont see stock heads and intake going 500whp,
AI's done it but then again that was a car where no attention to detail was missed nor a penny spared. not exactly the mindset of your average LTx owner.
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Old Jul 15, 2009 | 12:25 PM
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Originally Posted by ss.slp.ls1
Agreed, but definitely not with a LT4 hot cam...
Very true. My Weiner will get me closer to 500hp than that cam will, it's too small of a cam.
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Old Jul 15, 2009 | 12:28 PM
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oh I missed that part, definately a no go with any serious build
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Old Jul 15, 2009 | 12:40 PM
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In befo da lock
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Old Jul 15, 2009 | 12:45 PM
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lolz!
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Old Jul 15, 2009 | 02:45 PM
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Originally Posted by myltwon
AI's done it but then again that was a car where no attention to detail was missed nor a penny spared. not exactly the mindset of your average LTx owner.
exactly, those heads were prolly perfectly ported, increase valve size, and CC's opened up.
and alot of R&D into the build.
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Old Jul 15, 2009 | 03:04 PM
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FYI...

My 383 with stock ported heads (2.02/1.57) and intake with a CC306 made 410 to the wheels through a 6-speed and S60. I know there are some other out there with some bigger numbers than me with similar setups but I don't think 500 to the wheels with your combo is very realistic.
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Old Jul 16, 2009 | 06:14 AM
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PEOPLE PEOPLE PEOPLE!!!!! PLEASE READ EVERYTHING!!!!!!! im not saying i cant afford to buy ANYTHING i know a LT4 cam really is not what i need to break 500hp. BUT WHAT CAM SHOULD I USE? does anyone have any numbers with it? is it possible with stock heads? i really am trying to stay away from droppin almost 2k in a set of heads. but if i have to then i will cause i want the numbers. i told you guys what i had to work with just so you had an understanding and if i could use any of it. if not ill wrap it all up and wait for a swap meet and sell it all then pick up what i need lol. i just need people to tell me what i need or what they think i need to get the desired numbers.
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Old Jul 16, 2009 | 07:04 AM
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500hp and cheap heads dont belong in the same sentence.

Look at Advance induction's website, or any reputable head porter and see what they cost.

You will need a custom grind cam, ported intake and all the other supporting mods to make that power. Plan on AT LEAST $8000 minimum.
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Old Jul 16, 2009 | 07:33 AM
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Originally Posted by FASTFATBOY
500hp and cheap heads dont belong in the same sentence.

Look at Advance induction's website, or any reputable head porter and see what they cost.

You will need a custom grind cam, ported intake and all the other supporting mods to make that power. Plan on AT LEAST $8000 minimum.
Only to add...plan on $8k if you can get everything used and half off..lol.

In reality when you build the complete car you will spend upwards of $20k to make it right and reliable. Plan on $12k for the entire engine done correctly with all machine work, etc. with no other supporting mods.

Also whatever you think it will cost...double it and add 20% mroe and you might be close. Fast and cheap never go together unless you build a lightweight timebomb.

Whoever you decide to get your heads from make sure you get a matching cam. If it were me I would go to Lloyd Elliot or AI.

You should really pick a number that you are willing to spend and then price things out to see what is acheivable within your budget. Most people are dreamers and think they can run consistent 10's for $3k with an LT1. Just remember it's not all about the hp of the engine it is the entire car combination from suspension, rear, trans, converter/clutch, tuning, supporting mods. Build the entire car not the engine to reach you goals.
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Old Jul 16, 2009 | 08:06 AM
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If you want to spend upwards of $8k you might aswell get a LQ4 Ironblock and stroke it. That'll put close to 500 at the wheels easily.
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Old Jul 16, 2009 | 09:32 AM
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Originally Posted by FASTFATBOY
500hp and cheap heads dont belong in the same sentence.

Look at Advance induction's website, or any reputable head porter and see what they cost.

You will need a custom grind cam, ported intake and all the other supporting mods to make that power. Plan on AT LEAST $8000 minimum.
perfectly put! AI is the only one i'd have build my motor. i'd love to have that one guy's 355 with the stock ported heads and mild solid roller making 500 wheel and twisting out to 7500
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Old Jul 16, 2009 | 11:17 AM
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Originally Posted by StangeatinZ28
perfectly put! AI is the only one i'd have build my motor. i'd love to have that one guy's 355 with the stock ported heads and mild solid roller making 500 wheel and twisting out to 7500

Is this an LT1? or just a SBC?


Now i know im going to get flamed for this really really bad. but im building it myself with my own hands. i dont want anyone else building it. i understand the advantages to having someone else build it. trust me i really do. but being able to say i built the entire motor myself or the car. just gives me a sense of achievement. but thankyou guys. these are the type of anwsers ive been looking for all along. price range. companies. specs. **** like that. so thatnkyou
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Old Jul 16, 2009 | 11:19 AM
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and a really really dumb question. what is a LQ4? im sorry but what is it? how can i identify it? what makes it a LQ4? and what other "series" are there?
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Old Jul 16, 2009 | 11:23 AM
  #38  
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Originally Posted by 1slo_camaro
Is this an LT1? or just a SBC?


Now i know im going to get flamed for this really really bad. but im building it myself with my own hands. i dont want anyone else building it. i understand the advantages to having someone else build it. trust me i really do. but being able to say i built the entire motor myself or the car. just gives me a sense of achievement. but thankyou guys. these are the type of anwsers ive been looking for all along. price range. companies. specs. **** like that. so thatnkyou
There is a big difference between an engine builder and an engine assembler...
From this thread I get that you are an engine assembler. Nothing wrong with that either. 90+% of the people on here are the same.
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Old Jul 16, 2009 | 11:56 AM
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If he's talking flywheel its not too hard, but RWHP is gonna be tough but again not impossible with stock ported heads and a nasty SR cam.
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Old Jul 16, 2009 | 12:06 PM
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Originally Posted by 1slo_camaro
and a really really dumb question. what is a LQ4? im sorry but what is it? how can i identify it? what makes it a LQ4? and what other "series" are there?
An LQ4 is a 6.0l Ironblock from the newer 2500HD Trucks..that is the most common place you will see them. It's a 6000 Vortec Engine Block, LS series Gen III.
You take that, Bore & Stroke it, Heads & Cam, then wire it in and tune it, and it will produce some nasty power very easily.

I know you guys are talking about LT1's but I just threw that out there cause of the statement about how much you would spend. If you were wanting to spend $8K+ I would go with the LS Engine.. it will produce a considerable difference in power for what you would invest in it.

Just my .02..
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