|
Whats the Difference?
As some of you know my baby been down for like the last 6months tranny slipping overheating etc etc..
I recently been blessed to have an opportunity to swap out my 6th gen (00) 3800 series II n/a for a 3800 series III n/a out of an (05) pontiac grand prix jus hitting 66k! No charge to me at all! My question is what is the difference between the 3800 series II and series III? Anything I need to make my mechanic aware of before we start the swap? Also any other suggestions on what to add, change, besides spark plugs, wires etc as I complete the swap would be helpful. |
The two things that come to my head from the L32 (SC series 3 3800) are returnless fuel system and the electronic throttle body. I'm not sure if the L26 (NA series 3 3800) has the same two problems, but I would imagine they do. Either way is no biggie to fix.
|
Originally Posted by bumpin96monte
(Post 202508)
The two things that come to my head from the L32 (SC series 3 3800) are returnless fuel system and the electronic throttle body. I'm not sure if the L26 (NA series 3 3800) has the same two problems, but I would imagine they do. Either way is no biggie to fix.
|
From wikipedia
The Series III motors include many changes. The upper intake manifold is now aluminum on the naturally aspirated models. Intake ports are mildy improved, 1.83" intake valves (instead of 1.80" as on Series II) and 1.52" exhaust valves were introduced in 2003 engines, just before switching to Series III. Electronic throttle control is added to all versions, as is returnless fuel injection. Stronger powdered metal sinter forged connecting rods are used in 2004+ supercharged, and 2005+ naturally aspirated engines, instead of the cast iron style from Series II engines. Emissions are also reduced. In 2005, it was the first gasoline engine in the industry to attain SULEV (Super Ultra Low Emissions Vehicle). L26 Naturally Aspirated The L26 is the Series III version of the 3800. It is still a 3.8 L (231 cu in) design. Compression remains at 9.4:1 as with previous L36's, but the aluminum upper intake (2004+) and stronger connecting rods (2005+) are the primary physical changes. The powdered metal connecting rods were meant to be introduced in 2004 along with the L32's, but the GM plant in Bay City, Michigan that supplies the Flint, Michigan plant could not achieve the desired production dates in time for that engine year. This engine was used in the following vehicles: 2004-2008 Pontiac Grand Prix 2005-2009 Buick LaCrosse 2006-2008 Buick Lucerne |
| All times are GMT -5. The time now is 02:31 AM. |
© 2026 MH Sub I, LLC dba Internet Brands