I thought the Short star was a 3.5L dohc v6 based on the Northstar and the 3.4 was related to the GM 60 degree v6 family that includes the LQ1 dohc 3.4, the RWD 2.8 (found in S10s), and the 2.8/3.1/3100/3400 found in smaller FWD cars and finally the 3.4 S-10 replacement engine?