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

400 horse power LT1 built..

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Old 09-09-2011, 08:40 AM
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Default 400 horse power LT1 built..

My ideal set up
3:73 gears
3000 stall
Stock crank
Forged pistons (still deciding)
Cam (still deciding)
Ported heads
Ported intake manifold
Ported TB
SLP air intake
Long tube headers into a y pipe with magnaflow exaust.

Am I forgetting any of the basics? Im going for 400HP TO THE TIRES.. I will be spraying as well.. 125-150 shot
Old 09-09-2011, 08:41 AM
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Tires and suspension is a must as well..
Old 09-09-2011, 08:50 AM
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you will be lucky to hit 400 wheel off the juice
Old 09-09-2011, 08:52 AM
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With a good h/c combo from LE or AI 400 to the wheels can happen pretty easy
Old 09-09-2011, 08:57 AM
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well he is going to need one hell of a cam to hit 400whp just saying in my build im shooting for high 300s off the juice and i have a pretty beasty setup
Old 09-09-2011, 08:58 AM
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i would say with a LE2 package or equivalent from AI, 400rwhp should be with in grasp.
Old 09-09-2011, 09:02 AM
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Originally Posted by nvrending97ws6
well he is going to need one hell of a cam to hit 400whp just saying in my build im shooting for high 300s off the juice and i have a pretty beasty setup
Sounds like someone bought the wrong parts Do some research and you will see that you don't need a massive cam to get 400
Old 09-09-2011, 09:40 AM
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With a le2 head and a matched cam and a great Tune 400 easy but all of that power is usless without suspention.
Old 09-09-2011, 09:50 AM
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Yea 400 is a real possibility with heads and cam and all the boltons. Plenty of guys doing it on stock bottom ends.
Old 09-09-2011, 10:52 AM
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Go to ai and i don't see any reason not to hit 400rwhp with a head cam package from them. Of course u need all the bolt ons also and I wouldn't skimp too much on valve train either
Old 09-09-2011, 10:56 AM
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Originally Posted by nvrending97ws6
well he is going to need one hell of a cam to hit 400whp just saying in my build im shooting for high 300s off the juice and i have a pretty beasty setup
No, you don't.
Old 09-09-2011, 11:18 AM
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Originally Posted by rich5368
Yea 400 is a real possibility with heads and cam and all the boltons. Plenty of guys doing it on stock bottom ends.
Even with the "847" people go over 400 rwhp.
Old 09-09-2011, 11:19 AM
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CC306 has gone over 400 as well............
Old 09-09-2011, 11:39 AM
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Hahahaha 300??? Maybe building a LT isnt your thing bro..
Old 09-09-2011, 11:41 AM
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@ lawhead
I've heard good things bout that cam.. Even on the threads on here.. Any other cam options.. Because once I have the specs from the cam I can go and get everything else matched up..
Old 09-09-2011, 11:41 AM
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Originally Posted by nvrending97ws6
well he is going to need one hell of a cam to hit 400whp ....
Nope. Get the rest of the package right, and it's a given.
228 deg here on intake duration; 425 SAE to the wheels.
Old 09-09-2011, 11:42 AM
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m6 cars hit 400whp fairly easy but not stalled a4's. A nice ai h/c package should get you close, if not there.
Old 09-09-2011, 11:46 AM
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And I was including the 125-150 shot into my build.. So as a total of 400rwhp on the bottle.. Off the bottle Ill take about 350 to the motor.. I still drive the car so I don't want it outrageously raced out
Old 09-09-2011, 11:52 AM
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It can never be raced out or your to old. Im making 423 with le2 and 306 in my wires car. People who have no idea what there talking about should troll somewhere else.
Old 09-09-2011, 11:52 AM
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Originally Posted by MAROBOY_TRAV
And I was including the 125-150 shot into my build.. So as a total of 400rwhp on the bottle.. Off the bottle Ill take about 350 to the motor.. I still drive the car so I don't want it outrageously raced out
A 125-150 shot will give you 400 to the tires on a well-tuned stock engine. I was doing 425 STD on the 150 shot with my stock engine. I'm talking locked converter on all of the hp numbers.
350 on motor can be done with a cam only. With good ported heads, 350 on motor can be done with an extremely mild cam. Look at AI's website and you'll get an idea of cam sizes you should consider. They're very realistic with their estimated hp numbers.


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