L-69 vs LG4 carb questions
11-01-2001, 05:57 PM
#1
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Car: 4 Mopars total
Engine: Pentastar power
Transmission: T/F and New Process
Axle/Gears: Three 8 3/4's & one 9 1/4
L-69 vs LG4 carb questions
Well, my q-jet died. Dumping so much gas, it isnt even funny. Now rather that rebuild the stock LG4 carb, I have access to an L-69 carb. Would this help me out any in the land of performance? I heard they have different secondary metering rods and hangers. BTW, my car is an 83 T/A, all stock w/ 3.73 gears, punched cat, bumped timing, and a 74,000 LG4. Please help, as i need to drive my car everyday. Thanks guys (and gals) 
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1983 T-top Trans Am. All stock (for now) LG4/auto/3.73 posi. 70,000 original miles. SLOWLY going through a Knight Rider conversion. (it will be done one of these years)
Bset of 15.79@86mph 2.16 60ft
1963 Dodge Dart drag car. 360/904/4.88
Best of 10.94@120.44mph
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1983 T-top Trans Am. All stock (for now) LG4/auto/3.73 posi. 70,000 original miles. SLOWLY going through a Knight Rider conversion. (it will be done one of these years)
Bset of 15.79@86mph 2.16 60ft
1963 Dodge Dart drag car. 360/904/4.88
Best of 10.94@120.44mph
11-01-2001, 09:31 PM
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Car: '10 Subaru Forester
Engine: 2.5 Boxer
Transmission: 4EAT
Axle/Gears: 4.44
There will probably be a little more power, but you won't notice it. The carb isn't the weak spot of the LG4 it's really mostly the cam's fault.
BTW Nice time w/ the T/A I won't see 15's for a while myself.
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1984 Firebird - Daily driver, 305 LG4, 3.23 rear, T5 - Hurst short shifter, Edelbrock 600 CFM 1406 carb, Performer intake - Edelbrock Pro-Flow air filter, gutted cat, IROC 16x8 5 Spoke Wheels, AIWA bargain basement (from Sears of course) CD player, Eight-ball shift ****
Check out my ride here
"IT'S SNOWING! TO THE HIGH SCHOOL PARKING LOT!" - The Mustang and Firebird face off in the dead of winter.
BTW Nice time w/ the T/A I won't see 15's for a while myself.
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1984 Firebird - Daily driver, 305 LG4, 3.23 rear, T5 - Hurst short shifter, Edelbrock 600 CFM 1406 carb, Performer intake - Edelbrock Pro-Flow air filter, gutted cat, IROC 16x8 5 Spoke Wheels, AIWA bargain basement (from Sears of course) CD player, Eight-ball shift ****
Check out my ride here
"IT'S SNOWING! TO THE HIGH SCHOOL PARKING LOT!" - The Mustang and Firebird face off in the dead of winter.
11-02-2001, 12:26 PM
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Car: 1986 Z28
Engine: 355
Transmission: th400
If the L69 carb is in good shape it should work fine.
The only differences are on the secondary side as far as i've known, the air vavle may open farther, and the metering rods and hangers are certainly better.
Put that on it will probalby have a bit better power.
Buy a rebuild kit and redo the lg4 one keep a spare
The only differences are on the secondary side as far as i've known, the air vavle may open farther, and the metering rods and hangers are certainly better.
Put that on it will probalby have a bit better power.
Buy a rebuild kit and redo the lg4 one
keep a spare 
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