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Optimistic HZ owner

Hi. I've just bought my first car, 79 HZ sedan, with a red 202. With that sentence I've also summed up most of what I know about it too. Everyone I speak to seems to know a little bit. One of my mates has a recon blue engine from a vb commodore. Said engine has double barrel holly carby. He wants to fit this engine to my car.

Have heard from another source that these later engines were far more fuel efficient than the 202 **at least when driven sensibly.**

As I said I don't think anyone that I know knows very much.
I know that HQ though to WB motors are interchangeable. So here is the question ...

Is that true of the early commodore motors? I'm guessing it can't be that easy. And if it's not, just how much effort is involved? Is this one of those Turn Back Now, Before It's Too Late! moments? I can envisage changing engine mounts but beyond that ...

Can anyone who has any sort of knowledge post it or drop me a line ?? Stormfalling@hotmail...

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The motors would be a bolt in swap. But the blue motor would mean that your car would have to meet Commodore pollution specs(which it certainly wont with a Holley)to obtain a RWC. All hope isn't lost though. You can( WITH MODIFACATIONS )put the blue head on a red motor, then put a decent induction system on that, have some good power, economy, and have it all legal and roadworthy.
Cheers.

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Campbells Shed
Postcode 3147.

my first car was a 79 Z sedan too. poor old thing found a pole within 3 months of me getting my licence.

i'd say that if you need to ask the question here, that the answer would be a definate NO for making the swap. if you dont know what your doing and you dont quite trust your mates advice/experience (yeah, i had a few mates like that too when i was just starting out), then just dont bother. the red 6 is a good donk, nigh on indestructable and enuff power in stock form to get you sideways around corners and into poles.

if you reckon your up to the task and you know the blue motor is good and your not paying much (or anything) for it, then its worth a crack. each to their own, but i honestly wouldn't bother too much about the pollution gear, the amount of cops that know there are pollutions issues with and will be able to tell the difference between a red 202 and a blue 202 (after fresh paint) would be able to be counted on one had i reckon. i have a black 308 in a HJ using the HJ pollution gear and no-one has said boo, i dont think people are generally that petty.

personally tho, even if the motor was free and you have a handy mate that knows exactly what they're doing, i wouldn't bother unless there was something special about the blue motor or something stuffed about your one. if you dont like the economy, put it on gas, the gummymint pay you to do that these days!

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BwaaaaaaaaaaaaAAAAAAAAAAAP!!!

The issue isn't the coppers knowing. It is the roads authority (and the mechanic that risks his RWC licence signing off on a car that ain't roadworthy), when you try to register a change of engine number. Let's face it, it depends on the person and the officer that is doing the reg stuff. You may have gotten through the brakes. Don't mean others will.
Cheers.

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Campbells Shed
Postcode 3147.

mine went through a picky RWC and the vicroads engine changover inspection without a hint of a drama. mate of mine had a blue motor in his J van, same deal again and no dramas.

like i said, take it any way you want, but i personally doubt you'd be unlucky enough to get sprung by one of the few people left that are in a position to do something, that actually know theres an issue AND that are willing to be that petty about it.

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BwaaaaaaaaaaaaAAAAAAAAAAAP!!!

I agree buddy, I've registered a few cars over the last 3-4 years, nothing newer than the HZ van and as old as the 57 Morris minor. The Morrie was out of NSW reg for over 7 months, all I needed was a roadworthy. The inspectors on all cars were only interested in the vin number and engine number. I was relieved as the Morris has All Datsun 1200 running gear!
So They seem to be very lax in Victoria.
Cheers BOBBY==========

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TELL SOMEONE WHO CARES

Mate i bought a HX (with RTS), it had a dead red 202 and trimatic in it and was just out of rego. I stripped out my WB Van and put my trusty blue 202 and 4 speed in the HX then popped into get rego, not a problem. I also had a 350 holley on it and she run harder and cheaper than the original carby. I was 99% WOT though and used compression lock up for most cornering YEHARRR, i loved that car, It only ever cost a couple of shifters (I break em), two, maybe three cogs on the bottom of dizzy, an engine mount and a front and two rear uni joints. Abused every mile it traveled and it loved it. I'll get a licence again one day, lol.

"[http://gallery.oldho...|Shed, monaro build & garage sale]"

>EMAIL

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"Junk is something you throw out 3 weeks before you need it"

You can put a blue motor in a hz, just hook up pollution gear.

This day and age, the blue motor would be a good idea to fit.

I just sold a VH with a 2.8ltr Blue. The guy bought it for the motor to put in his one tonner.

I just bought a HZ ute with a blue 202 in it. It ran sweet all the was from melb to SA. (The motor and trans (Auto) is up for grabs by the way. Elec dizzy fitted.)

'Later'

>Mail HERE..no bills!
>Ron's shed
>Cruising In SA.....The Shed

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>oldholden e-mail here!!

I HATE it when TV shows destroy the old classics........ The money they waste on destroying them, they could send the bloody things to me. I'd be more than happy to have them!

I'm sure VB Commodore's came with red motor not blue.
My 1978 VB did anyway

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VB Commodores did come out with the red motor, the same one as the HZ.
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cheers Gary.

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cheers Gary.

Conventional wisdom has it that a stock red 202 with the original 1.5 inch stromberg carby will deliver the best fuel economy you're going to get from a stock red, blue or black 202 engine. I'd be surprised if you did better with a stock blue motor, they have this carburettor called a varajet, which nobody has anything particularly complimentary to say about.
On the other hand, a webber 34 adm on a blue motor is a good compromise between power and economy. Some people reckon you can do well out of a Holley too - I've never had one so I can't say.
For the original poster - you might not be aware (and I don't think anyone's pointed it out in this post) that the blue motors you are talking about, are actually the red 202 and 173 with a different colour of paint and some other minor modifications, e.g. balanced crankshaft, improved cylinder head flow and electronic injection.
consequently the engine mounts, bell housing, etc. etc. are all identical. possibly the only thing you'd need to change would be your exhaust manifold.
If you're worried about rego dramas, do as someone suggested above and take the good blue bits and fit them to your red block. The cylinder head will fit, you just need to drill a couple of holes in the block. I did it myself in my carport, (if I can do it anyone can!!) it's not hard.

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If the HZ has a manual gearbox and you are using a blue motor clutch, the pressure plate will foul on the inside of the bellhousing,at the top (push type mechanical linkage). You will need to use a pull type (cable operated) bellhousing. These were used on later HZ's,WB's,UC's and commodores.

Cheers, Jeff.

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