by spencerforhire » Sun Feb 28, 2016 8:09 am
I had no idea the 3.8 and 4.3 Chevy V-6's had different style crankshafts. According to Wikipedia, the 3.8 was "semi-even fire" with an 18 degree split between the pairs of crank pins, and the 4.3 was fully even fire with them split 30 degrees.
I guess you're never too old to learn something new every day. lol
I will admit that the 3.8 Malibu wagon I drove as a winter beater for a few years did sound strange; especially with dual exhaust. And it wasn't as smooth as the 3.8/T-50 powered 79 Sunfire wagon that came before it.
P.S.- My apologies for hijacking this thread; I forgot that it started out comparing the two generations of 2.5's.
The "fleet"-
72 Vega HB Drag Car -383/'Glide/9"(9.35@146.19)(5.94@117.28 1/8th)
77 Vega Estate wagon- project(someday)will have TPI305/T-5, S-10 spindles/axles
76 Vega GT- 400/4spd/9" retired from active duty(rusty)
06 Silverado 2WD ex.cab daily
03 Silverado 2WD ex.cab (retired)
06 Haulin' 20ft enclosed car transporter
06 GMC Canyon Shop truck
07 Colorado project( 5.3 4L60e swap)
99 Saturn SL1- wife's car
01 Saturn SC2- son's project
07 Saturn Ion Redline project
and 4 more Saturn "parts cars"
Note- the very act of listing all of these has made me realize I have some kind of problem.....
Visit http://www.spencerforhire.ca