at4 4 speed gearbox

There were a few Chargers with what was known as the Magnum 6 of 300cu. The NSW Police had some. No idea on advertised hp, but they did go like a dog shot in the arse.

Speaking of police cars we have 2 new highway patrol cars in town, and only one ss Holden , and they’re BMWs I’m not sure of the specs yet
Maybe someone can elaborate further....

Rattail 1927 wrote: This one is for you John, would it be worthwhile trying one of the carter economy carbs in my 610A instead of the 2300 Holley ?
If I had the money I’d definitely insert a Perkins in it , they were an option on the 630A for sure and I think to 610A as well

I know Im not John but gunna throw my thoughts in the rind anyway

In a word no
I have had a interest in these Inter V8's for some time, dont know why guessing I must have been dropped on my head as baby

Answer to your question is it wont make bugger all if any difference

IH V8's were built to last and thsts about it
They are very low compression and if you ever have a head off they end even lower compression

The reason they were built with such a low compression is they were built for US farmers in mind that had cheap crappy farm fuel that would make the motor ping if compression was higher
They were huge and heavy lumps that a massive internal weight spinning around gave a good lugging little motor that lasted for ever

Thats pretty much it for the good points

After market throttle body fuel injection
A new inlet manifold
Deck the block
And some headwork
And machine the crank down to reduce the weight and you will get a lot lor better engine
Still wont rev like a race car but will give good fuel economy with a original motor
Or put a Perkins in
I dont know why they never used rhe Neuss motor as they are a good motor as well if not better than.a 6354 Perkins

Just some thoughts

Paul

Thanks Paul. I like the way it runs and I’ve no interest in driving it like a car , or revving it like a car etc etc I was just wondering if there was a way in maybe getting a little more fuel economy.....

Wee Allis: there is a bloke here in Ipswich who used an AT4 114 until recently for towing. He told me it had one if these "bigger" hemi sixes in it. Looked the same, but had to get parts from Canada, IIRC.
I have never been able to find much about it besides tangential references to being a stillborn truck engine.
Jarrod.

Mrsmackpaul wrote: I dont know why they never used rhe Neuss motor as they are a good motor as well if not better than.a 6354 Perkins

Paul

Paul, They Did fit the 358 Nuess Motor to A & B series Acco's.
Not too sure on the c series!! But i don't think So... But happy to be corrected..

Compression of the 345 is around 7/1,so not real low......I would think the cheapest way to improve milage is to increase compression......however,the inlet manifold would have to be milled off too ,if you mill the heads.....so not a small job like a 6.....Anyway ,as I mentioned,you cant judge mileage with a seized diff...The Dodge super economy setup includes the ELB,...anyhoo ,I dont like the Carter carb used ,its all adjusted by bending wire links....not very do able without proper gauges and tools.

For a short time I drove a 510A Acco arouns Sydney towing a mobile hydraulic press that went to 150 tons pressure. The petrol V8 in it never once missed a beat andalways started easily but the downsoide was fuel consumption, boy could it drink fuel.
The only way I can think that will increase the fuel consumption on yours is to turn the key to the 'off' position. They are a very hungry engine.

The Rochedale Brickworks in the next road to me had a fleet of butterbox 8 wheelers with 392 s and Allisons.....When Highland from Sydney took them over ,they sent up some S lines and trailers ....unfortunately the despatch office was on a very steep pinch up onto Gardiner Rd,and none of the drivers could drive a Roadrangers at all....They had to get in subbies ,and most of the V8 drivers quit cause they couldnt pick up the manual trucks.....The S lines were all DT 466 motors,notably gutless taking off ,due to the California smoke rating.,but very economical.

Rattail 1927 wrote: Thanks Paul. I like the way it runs and I’ve no interest in driving it like a car , or revving it like a car etc etc I was just wondering if there was a way in maybe getting a little more fuel economy.....

One more thing to consider for economy would of course be a over drive box

Some time ago I scanned and copied a article out of I think a magazine called Restored Cars
A Australian magazine and a fella gave a very detailed recollection of how he converted a Holden grey motor to ULP
He was if my memory is correct getting 24 - 25 MPG regularly
Some body on here claimed grey motors get better than that standard
I wouldn't have thought so but not been a Holden man I wasnt going to question that

Maybe worth have a search aroumd the forum for that article as it may give you some ideas

I maybe foolishly believe good fuel economy could be achieved with a 345 or 392 but I guess that all depends on what you call good ad well

Paul