Newbie

[efi65]

hello there ladies and gentlemen, im new here, I have a few questions for you guy's/girl's. does the rb20 cylinder head bolt onto the rb26? The story is im doing up an a 1965 xp ford falcon and instead going the v8 route I would like something different, like putting in a turbo rb26. The way the rules and regulations are I can either put a non forced induction engine upto 5 litre or go forced induction upto 3 litres. So any advice an help on what to look out for on the rb series engines would be fantastic thank you

[djr81]

Why do you want to put an RB20 head on an Rb26?

[efi65]

i have a rb 20 head in my shed and a mate has the 26 bottom end ,and apparently he heard some where that the 20 head is a better flowing head???

[djr81]

Well to be honest I don't know if they will fit - probably with a bit of work but its one of those why bother things.

Not sure that many people would have ever tried but RB25/20's & 25/30's exist so you would think you could get a 20 head to fit on a 26 if you really tried.

But:

The Rb26 head is a pretty good thing and given that most RB26's fail in the bottom end I would recommend you go looking for an Rb26 head.

As for the flow thing, no.

The car a 2 or 4 door?

[efi65]

4 door xp sedan, thank you djr81 for your reply. the aim is have something different with reliable horse power, and drivable , few of the ford falcon boys are a bit upset, reckoning im ruining a classic car and ricing it up but ive nothing but good things about the rb series engines that they make good reliable horse power, the power im chasing is around the 350 to 400 mark the car doesn't weigh that much so it would be a fun car to drive around

[Ben C34]

Won't fit. And is silly.

Welcome.

[Ben C34]

I should add won't fit easily, meaning it is still able to be made to fit but is a silly waste of time and money.

Find a nice rb25 neo engine and drop that in.

[efi65]

thank you very much for the info and advice,

[djr81]

4 door xp sedan, thank you djr81 for your reply. the aim is have something different with reliable horse power, and drivable , few of the ford falcon boys are a bit upset, reckoning im ruining a classic car and ricing it up but ive nothing but good things about the rb series engines that they make good reliable horse power, the power im chasing is around the 350 to 400 mark the car doesn't weigh that much so it would be a fun car to drive around

Yeah can understand why. Wouldnt an XR6 motor out of, say, an EB be better?

Honestly having owned too many GTR's and RB26's they really aren't as brilliant as people make them out to be. I don't know that I would recommend one for a conversion. Not least for the reason that (From memory) the exhaust is on the wrong side for a Falcon.