LT1/LT4 Tech 1993-1997

hp

Old Nov 20, 2008 | 06:56 PM
  #1  
duke15's Avatar
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how much hp would a totally stock 97 lt1 bored .60 over make?
 
Old Nov 20, 2008 | 07:59 PM
  #2  
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Default RE: hp

A dyno could tell you easier than we could. It depends on how much youre putting out right now.
 
Old Nov 20, 2008 | 08:16 PM
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just boring out a motor won't do much for you...the heads and cam will still restrict you. and 60 over is quite a bit for an lt1. you might want to do a little more research before you consider doing things like that
 
Old Nov 21, 2008 | 02:24 AM
  #4  
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Default RE: hp

Like Whammer said, your heads don't flow enough and your cam isn't big enough to get much of a benefit from just boring it. Do you already have an intake and full header back exhaust? You'll need the supporting mods before you'll get any good numbers from any internal modification.
 
Old Nov 21, 2008 | 03:06 PM
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Default RE: hp

Boring a 350 .060 over is going to give you approx. 360 c.i.
I believe in stock form, your LT-1 is rated at 285 h.p.?
By simple math, that's .814 h.p. per cubic inch (that measure is close, since the LT-1 is actually a slice less than a full 350).
Multiply your .814 x your new 360 c.i. dimension, and you have approx. 293.14 h.p.
That's a close "estimate" of what you should end up with.
 
Old Nov 21, 2008 | 03:21 PM
  #6  
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Default RE: hp

ORIGINAL: Camaro 69

Boring a 350 .060 over is going to give you approx. 360 c.i.
I believe in stock form, your LT-1 is rated at 285 h.p.?
By simple math, that's .814 h.p. per cubic inch (that measure is close, since the LT-1 is actually a slice less than a full 350).
Multiply your .814 x your new 360 c.i. dimension, and you have approx. 293.14 h.p.
That's a close "estimate" of what you should end up with.
He is right on. However there are a few other factors to consider. A good piston may allow for less resistance and higher efficiency. If your staying NA bumping up your compression can also increase your engines efficiency.
 
Old Nov 21, 2008 | 05:04 PM
  #7  
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Default RE: hp

A 0.060 overbore isn't goint ot give you much in the way of extra power, but may result in a cracked cylinder bore. The maximum recommended overbore for an LT1 engine is 0.030. This block uses thin wall casting.
 


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