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Quick ??? on the LG4...

Old Nov 12, 2002 | 06:04 PM
  #1  
Cruz'N Bruz'R's Avatar
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From: Cincinnati, OH
Car: 87 Iroc Z
Engine: 383ci.
Transmission: WC-T5
Quick ??? on the LG4...

What size of combustion did the LG4's get. were they 64cc are larger like the 882's got 76cc heads, but those were early chev.

Any answers?
The engine in question is in an 84 Z.
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Old Nov 12, 2002 | 06:11 PM
  #2  
Mark A Shields's Avatar
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Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
I thought they were 58cc heads??? could be wrong though.
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Old Nov 12, 2002 | 06:52 PM
  #3  
darbleinad's Avatar
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From: Ailsa Craig, Ontario, Canada
Car: 84 Trans Am
Engine: 350
Transmission: 700r4
58cc is correct...still compression was 8.5:1...thanks to crappy dished pistons
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Old Nov 12, 2002 | 06:54 PM
  #4  
Mark A Shields's Avatar
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From: Someone owes me 10,000 posts
Car: 99 Formula
Engine: LS1
Transmission: T56
Axle/Gears: 342
Originally posted by darbleinad
58cc is correct...still compression was 8.5:1...thanks to crappy dished pistons
I hate those dished pistons.
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Old Nov 12, 2002 | 06:59 PM
  #5  
darbleinad's Avatar
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From: Ailsa Craig, Ontario, Canada
Car: 84 Trans Am
Engine: 350
Transmission: 700r4
yeap...when combined with a very weak cam and the worst exhaust in the world they make for a pretty wimpy engine in terms of power output
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Old Nov 12, 2002 | 07:30 PM
  #6  
ME Leigh's Avatar
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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
Yep they have a nominal chamber size of 58cc, but usually they are around 60cc.
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