i heard it was possible to change the injectors on a 3.4 dohc to injectors with a 4.3 l and i was wondering if this is posible and if anyone has done it and if so would i have to change the fuel pump out to since they send more preasure i heard the 3.4 dohc originaly had 4.3 ingectors in it but had to much power so they put 3.1 injectors in it|||If it%26#039;s a TBI 4.3L V6 it will not work and if SFI it will not work they both use a different type of fuel injection.|||Uh, no.
Short of running a blower on that engine, you aren%26#039;t doing enough to outflow the stock injectors.
You aren%26#039;t running a 3.4L from an F-body...now THAT was an engine that was choked off!