cc Virgil I've never really heard them state which exact models we have either, according to the info on the link I posted earlier and copied and pasted below, the L doesn't seem to have much more power than the J, with all the added weight on the L, I don't think the small addition of a few extra HP equate out to the weight gain.
"The P-38J also had redesigned Prestone coolant scoops on the tail booms. All P-38Js retained the V-1719-89/91 engines of the P-38Hs, but their more efficient cooling installations enabled military rating at 27,000 feet to be increased from 1240 to 1425 hp, while at that altitude war emergency rating was 1600 hp. "
The P-38L was the final production version of the Lightning and was numerically the most important of all the Lightning versions. Lockheed built 3810 P-38Ls and Consolidated-Vultee at Nashville built 113 more. The P-38L was powered by 1475 hp Allison V-1710-111/113 engines with a war emergency rating of 1600 hp at 28,700 feet and a military rating of 1475 hp at 30,000 feet. Except for the more powerful engines, the P-38L was generally quite similar to the previous P-38J