starting small with the 4s:
Iron duke i4 (2.5 OHV)
1979 – 1993
Family I i4 (1.4 SOHC/DOHC)
1982 – present
Family II i4 (2.4 SOHC/DOHC)
1980 – 2014
Quad 4 I4 (2.3 DOHC)
1987 – 2001
Saturn i4 (1.9 -2.4)
1990 – 2002
ecotec (2.0 / 2.2 / 2.4 / 2.5 DOhc
1996 – present
modernized ecotec (same as ecotec)
2012 – present
l3b i4 (2.7 turbo)
2018 – present
the 6s:
Atlas/vortec i6 (4.2)
2002 – 2012
buick 3800 (3.8)
1962 – 2009
chevy 60 deg. (2.8 / 3.1 / 3.4 / 3.5)
1979 – 2010
vortec 4300 (4.3)
1985 – present
high value (3.5 / 3.9)
2003 – 2011
high feature (2.8 / 3.0 / 3.6)
2004 – present
the 8s:
small block gen I (5.0 / 5.7 tbi/tpi)
1955 – 2003
small block gen ii (4.3 / 5.7)
1992 – 1997
small block gen iii/iv ( 5.0 – 7.0)
1997 – present
small block gen v (5.3 – 6.6)
2013 – present
lt series (6.2)
2014 – present
northstar (4.6)
1993 – 2011
diesels:
oldsmobile diesel v6/v8 (4.3 / 5.7)
1978 – 1985
detroit diesel v8 (6.2 / 6.5)
1982 – 2000
duramax diesel v8 (6.6)
2001 – present
duramax diesel v6 (3.0)
2019 – present
