1979 Vette
Melting Slicks
Joined: Oct 2005
Posts: 2,056
Likes: 8
From: Redruth Cornwall
If the engine is original to the car, the VIN will tell you as will the valve covers.
In the VIN, if the 5th digit is a 8 then its an L 48, if its an 4 then you have the L 82.
IIRC, the L82 has finned style aluminium valve covers wheras the L48 are plain stamped steel.
Hope this helps!
In the VIN, if the 5th digit is a 8 then its an L 48, if its an 4 then you have the L 82.
IIRC, the L82 has finned style aluminium valve covers wheras the L48 are plain stamped steel.
Hope this helps!
Last edited by jotto; Jun 20, 2010 at 04:58 AM.
Thread Starter
8th Gear
Joined: Jun 2010
Posts: 8
Likes: 1
If the engine is original to the car, the VIN will tell you as will the valve covers.
In the VIN, if the 5th digit is a 8 then its an L 48, if its an 4 then you have the L 82.
IIRC, the L82 has finned style aluminium valve covers wheras the L48 are plain stamped steel.
Hope this helps!
In the VIN, if the 5th digit is a 8 then its an L 48, if its an 4 then you have the L 82.
IIRC, the L82 has finned style aluminium valve covers wheras the L48 are plain stamped steel.
Hope this helps!
Le Mans Master
Joined: Oct 2007
Posts: 7,453
Likes: 976
From: RI, Now Franklin/Nashville TN
In addition, on the tach of the L-82's it will say near the bottom of the tach "L-82" and the redline will be 6,000 RPM's versus 5,000-5,500 on the L-48 (can't remember the exact RPM's but it is less than 6,000 of the L-82. This identification is the easiest to do if you do not have access to the engine bay, as an FYI). Also, on my 78 L-82, only the L-82 had an AIR pump, not the L-48 but not sure for the 79's and the L-48's had a 2 1/4 inch exhaust versus 2.5 inch for the L-82. All the other mentioned identifications are correct.
