305 LG4 HP?? - Team Camaro Tech
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post #1 of 4 (permalink) Old Feb 2nd, 01, 03:52 PM Thread Starter
 
Join Date: Oct 1999
Location: Duncan OK USA
Posts: 5
Question

I have a 1987 Z28 with the 305 LG4 engine (5 speed trans & 4 barrel carb. How much horsepower for stock engine?

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1987 Z28/305 4bl 5-speed Black & Silver. . .
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post #2 of 4 (permalink) Old Feb 2nd, 01, 07:39 PM
 
Join Date: Jan 2001
Location: Sav. Ga. USA
Posts: 2
Cool

Radar,

If you have an alum. intake (standard), according to GM it is producing 245hp at 2800 rpm. I had the same motor in my 87'. Hope that helps. Also check out Thirdgen.org for more info on your car.


Keep it between the lines

87' Z28 355/375hp
700r4 373 posi

[This message has been edited by h20cop (edited 02-02-2001).]
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post #3 of 4 (permalink) Old Feb 2nd, 01, 09:58 PM
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Join Date: Jan 2001
Location: skiatook, ok
Posts: 3,692
Wink

Sorry, but no way is that 305 making 245hp at 2800 rpm...I think you mean 245 lbs-ft of torque. I belive 87 LG4's were about 165hp or so.

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375hp 78 Chevy truck
77 Chevy Nova
95 Chevy Lumina 3.4L
and building a 78 Nova
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post #4 of 4 (permalink) Old Feb 3rd, 01, 07:09 PM
 
Join Date: Jan 2001
Location: Sav. Ga. USA
Posts: 2
Red face

I stand corrected, travis is right, the 87' LG4 produced [email protected] rpm and [email protected] rpm. It also had a CR of 9.3:1.

Hey, i can admit when i'm wrong.


Later
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