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Engine Builds for 305(LG4)

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Old Mar 23, 2002 | 08:00 PM
  #1  
chevyo3's Avatar
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Joined: Dec 2001
Posts: 69
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From: Brackney ,PA
Car: 87 Camaro Sportscoupe
Engine: LG4
Engine Builds for 305(LG4)

Anyone want to share there build method for obtaining more power from the LG4? Nothinhg radicle. Just some simple how to's
on gaining some HP for the 305ci. Lets here it fello Third Gen fans.
:hail:
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Old Mar 23, 2002 | 09:00 PM
  #2  
Sitting Bull's Avatar
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Joined: Jun 2001
Posts: 3,238
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From: Calgary, Alberta, Republic of Western Canada
Car: 1986 Sport Coupé
Engine: 305-4v
Transmission: 700R4 and TransGo2
Just do a search on the subject. Try LG4, you'll find a ton of stuff

They respond extremely well.
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Old Mar 23, 2002 | 09:36 PM
  #3  
ME Leigh's Avatar
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Joined: Jan 2002
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From: Valley of the Sun
Car: 82 Z28
Engine: Al LT1 headed LG4 305
Transmission: TH350
Axle/Gears: 3.73 posi with spacer
It's easy if it doesn't have to be emmissions complient!
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Old Mar 23, 2002 | 11:48 PM
  #4  
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Read my sig.

Emissions legal to boot. About $2400 invested (not including SFC or shift kit, which aren't installed yet anyway).
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Old Mar 24, 2002 | 04:00 AM
  #5  
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
I put an Edelbrock 1406 carb, Edelbrock 7101 Dual Plane Hi-Rise intake, vacuum advanced distributor, MSD Coil, Flowmaster muffler, stock manifolds and stock exhaust to the flowmaster.
I ran a best of 14.94 @ 91.67mph.


I've got a TPI on it now.
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Old Mar 24, 2002 | 08:09 PM
  #6  
five7kid's Avatar
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From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
I'll prioritize them for you: Air cleaner, exhaust (heads to bumper), ignition (module & coil), cam, heads, intake, compression (assuming '84-older LG4 - '85-newer okay unless Canadian).

Did I mention carb? No, for a very good reason - Just tune what you've got.
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Old Mar 24, 2002 | 11:46 PM
  #7  
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From: Chander, Arizona USA
Car: 2006 Silverado 1500
Engine: 5.3L
Transmission: 4L60E
there is too much to list. you should start by saying how much you'd like to spend and what your willing to do. btw zepher, 14.94 isn't exactly fast especially for a non-emissions legal car.
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Old Mar 24, 2002 | 11:59 PM
  #8  
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From: Norfolk, VA. USA
Car: 86 Trans Am, 88 Formula
Engine: 95LT4, 305TPI
Transmission: T56, T5
Originally posted by zippy
there is too much to list. you should start by saying how much you'd like to spend and what your willing to do. btw zepher, 14.94 isn't exactly fast especially for a non-emissions legal car.
I think it is damn good for a car that was originally a 16-17 second car. At least I was told it was a good time. Stock hp was only 165hp at the crank I believe. I only spent around $450 for the new carb, intake, coil, distributor, and air cleaner.
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