differences between LG4 and L69
Thread Starter
Junior Member
Joined: Apr 2002
Posts: 9
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From: Central FL
differences between LG4 and L69
i was wondering what the difference between the LG4 and the L69 was, as in, what did they do to gain the extra 40 hp out of the HO carbed version vs. the LG4.
Supreme Member
Joined: Jan 2001
Posts: 4,415
Likes: 2
From: Surrey, BC
This belongs on the Tech/General Engine board but here's the lowdown:
-Different metering rods in the carb
-Corvette camshaft
That's what was changed to the engine. Really its the camshaft that makes the big power. A few other things that were changed that could make power increases:
-Larger monolith brick Corvette cat converter
-Dual Snorkel intake
-Different metering rods in the carb
-Corvette camshaft
That's what was changed to the engine. Really its the camshaft that makes the big power. A few other things that were changed that could make power increases:
-Larger monolith brick Corvette cat converter
-Dual Snorkel intake
Joined: Mar 2000
Posts: 43,187
Likes: 42
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
https://www.thirdgen.org/techbb2/sho...hreadid=100809
Of course, there're a few responses with wrong info, but in summary:
Cam
Exhaust
Compression (in '83 & '84 only)
Tuning (timing, secondary calibration)
Air cleaner
Of course, there're a few responses with wrong info, but in summary:
Cam
Exhaust
Compression (in '83 & '84 only)
Tuning (timing, secondary calibration)
Air cleaner
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