The GM 3800 Series II engine, introduced in 1995, is quite a different engine from its predecessor, the Series I engine. While the stroke for the 3.8L engine remained at 3.4” (86 mm), and the bore remained at 3.8” (97 mm), the engine architecture changed dramatically.How much horsepower does a Turbo add to a 3800?
This results in better drivability at high horsepower levels and, overall, better performance. Our base turbo kit will take a naturally aspirated 3800 from 200 to 300 HP+ non-intercooled and to 400HP+ intercooled. Adding our kit to a supercharged 3800 will net 400-700HP depending on your configuration.Is the SII 3800 a good engine?
I do somewhat agree however that the SII 3800 isn't exactly a performance engine. I mean yes, with some mods, it has great potential, I'm not going to argue that. However, GM didn't design it for performance.When did the Ford 3800 get a new motor?
The 3800 was completely updated in ’95 when it became the Series II motor that was lower, lighter, smoother and more powerful than any of its earlier variations. Amazingly, it’s been installed in more than 6 million vehicles since 1995.