Hi guys,
I need to replace the tired 250 in an XA sedan I have and I've been scared off from using a later engine by smartlock and scary wiring (I've read the various stickys on here too) - but my question is about EA - early EB engines - my understanding is these pre-date smartlock and (I assume) are easier to wire?

Can I just yank out the loom and ECU, plug it in on the XA and it'll go? Or am I being too simplistic about it?

Any help or suggestions would be very much appreciated!!

wiring's about the same ..... just don't need ta do anything re smartlock etc - will it be manual or auto??




a little simplistic .. all depends on if ya want a stand alone engine system or a combined engine body wiring ie EA/EB wiring engine only or EA/EB running the lot




one thing ya canna bet on here . . . . . . ....

a couple of the people here have gone lata engines using stand alone [DOHC engine only wiring] in say an EA/EB

You do realise that if you install a later engine, ie 1994 into a 1972 car, that you will need to comply with that engines emisions standards (1994).

Hi, yeh I don't have a problem with that, I don't want to modify it, I basically just want a reliable replacement engine that can sit on freeway speeds etc - there seem to be endless EA / EB's out there around the 500 buck mark. To be honest if its too complex I'd be just as happy to go crossflow - as in XC - XF but they seem to be getting a bit thin on the ground....basically I want to pick up a donor car around the 5 - 600 buck mark, use what I need, ditch the rest. Not interested in aftermarket management because it would obviously blow the cheapie budget out the window. I'd rather go manual but I'd consider an auto...

Hi mate I just done a au 4.0 with a gt45 turbo,, 5; xh diff, conversion in a 78xc,, if u got a bit of common sense its straight toward,, I'm running the au4.0 with a ed dizzy, using a xh ecu harness, 6dbd ecu with a smartlock bypass module,,,ed injector harness,, el radiator & thermos.. still using the xc tailshaft,, goes like the clappers,lol. Put some life into the old falcon... Just yell out if u need advice..good to see more retro work getting done..