Engine type guide

How to differentiate between different model engines - BA early BF, late BF, FG, FGX, Territory, petrol, gas, turbo, NA etc. 

BA BF BFII FG FGX WTF?

Which is which ??

BA
Front sump

18mm VCT solenoids



BF - Early & Late
Divided into early and late models with differences

Early <05/2005 | Late >05/2005

Early had 18mm VCT | Late has 20mm

Late heads are interchangeable with FG heads

FG

20mm VCT solenoids