HP ratings for 2.8 , 3.0 , 3.1 , 3.3 , 3.4 , 3.8's?

[Markgase2000]

I just wanna know the horse power ratings of these engines (12 valve v6's only) and torque ratings if you know them too. ty

[achievasc92]

not exactly sure on all of them but I should be very close

2.8=135-140 HP
3.0= not a clue probably 140 or so
3.1 MPFI= 140'ish
3100 SFI= 155,160,175
3.3=160 hp, 185 torque
3.4=180-185
3.8 series one= 175
3.8 series one S/C= 195 rings a bell
3.8 Series two= 200-205
3.8 Series 3 (Supercharged)= I think they started at 240 and are now 260

[Markgase2000]

my 3400 had 170 hp stock , did the dual over head cam 3400 have 200 hp stock?

[urweak]

http://www.gmperformancetuning.com/forums/index.php

sign up and the different forums have all the specs for these engines listed in each section

[achievasc92]

The 3.4 DOHC had 215 hp with the 5-speed and 205 with the auto

[Markgase2000]

ty.