They bolt straight in, all you have to do is make sure you get a non-smartlock ECU with a seperate auto computer. They are deffinately a quiet and smoother motor. I saw an EL motor at pick'n'payless in Blacktown for $650. I picked up an EA 3.9L for $500, just depends on k's really.
1992 AXII Telstar TX5 Ghia
121kW 2.5L DOHC V6 in a car that weighs 1100kg's and looks like a 4 banger from the outside......SLEEPER!
1988 EA S Pak 3spd CFI.....Soon to be a 250rwkw HSV eating machine.