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AMC V8 - Brootal?

 
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Gez
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Posted: Wed Jul 07, 2020 11:48 pm    Post subject: AMC V8 - Brootal?

I am new to these pages and the 'sport'?

I have had a look through a few of the past comments made and have identified Brootal as an AMC fiend. So thought that he particularly may be able to help me with this question:

I have recently aquired a 28 Plymouth that I intend to rod. The past owner has offered me a 290 AMC V8 out of a 67 Rambler. He has kept it all these years as apparently 'it went hard'. I did a little investigation and it appears to me that the 290 will be too hard to get parts for and as a result I was going to leave it behind. Is this the case? If not where can I get the bits?

Any help/advice will be appreciated.

Gez.
Melbourne.
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Brootal
1000RPM



Joined: 11 Jun 2021
Posts: 1287
Location: Sydney, Australia

Posted: Thu Jul 08, 2020 1:37 pm    Post subject:

Maaaate... my new best friend!

Yeah, that motor will be junk. Best you send it to me.

Seriously, the parts aren't hard to find, it's finding the money to pay for them!!!

The 290 is a strong little motor and is basically the same as the larger AMC V8s. The 290 and 343 are very similar and parts are interchangeable. AMC then changed to a 304 and 360, the 360 is the most commonly found engine here as it was in the larger Rebels as well as a bunch of Jeep Cherokees. There is a fair bit of stuff around for the 360. There was also a 390 and 401, but they're a bit hard to come by in Oz. They also had a different deck height.

I have run the 290 in my car for a long time, but it has been off the road for a little while now as I decided to "fix a few oil leaks". You know what that means. New pistons, rings, intake... etc...

My 290 is not your normal 290. It is fitted with 307 Chev pistons, which requires a 0.125" overbore. It is also fitted with 343 heads which bolt straight on. The later 360 heads flow a lot better, but they use a 1/2" head bolt as opposed to 7/16", so step dowels are required to fit them. (I really should've gone that route, but didn't).

Hardest parts to get, i.e. Mucho $$$, are the water pump and timing cover. These are remanufactured an run around $400 EACH! If the engine has a good timing cover, look after it. They're AMC GOLD!

In general though, they're a great little motor and can run very hard. My car has run a high 14 sec quarter with a factory 4 barrel and a bit of a cam. That was at 93 MPH, so it WILL go quicker.

Front mounted distributor and rear mounted sump probably make it a good choice for a rod. Only thing you have be careful of is where the oil filter mounts. It is located down the bottom on the driver's side and will most likely foul your steering if you use a conventional box. Using a Rack & Pinion will probably be OK.

Most Aussie cars run a godawful oil filter/alternator mount, but that was WAY too ugly for me to run, so I just use a remote setup.

Sounds like another chance for a gratuitous engine shot (or two!).





...and yeah, it does good skids.



...but I really need to sort out that rear end.



Oops... got carried away and forgot to answer the question.

You can get most parts from Mascot Motors. They've got a website www.mascotmotors.com.au. There's also a guy over in Perth, Ben Ludlow (08)9279 1483 who races speedway and uses AMC engines. If you want to make some serious mumbo, he can get you 500 HP out of a 360 no worries, but I digress, you're only thinking about this motor because it's FREE!
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JIMBOB
400RPM



Joined: 11 May 2021
Posts: 469
Location: Canberra

Posted: Thu Jul 08, 2020 3:17 pm    Post subject: AMC V8

Brotal, why fix that rear, Looks like your carrying about 400 horses

Cheers and beers
Jimbob
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SRVLIVES
Cruisin



Joined: 30 May 2021
Posts: 373
Location: Toongabbie, Sydney

Posted: Thu Jul 08, 2020 5:55 pm    Post subject: Re: AMC V8

JIMBOB wrote:
Brotal, why fix that rear, Looks like your carrying about 400 horses

Cheers and beers
Jimbob


Bags of Horse manure maybe?

)
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buickroadster
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Joined: 26 May 2021
Posts: 60
Location: sydney australia

Posted: Thu Jul 08, 2020 6:14 pm    Post subject:

i'm building a '39 ford coupe ute and am using a 360 AMC V8.have mated it to a muncie 4-speed($100 worth of machining)will be building it up to around 400hp on lp gas.parts can be got from mascot motors in nowra(nsw)or various sites on the net(just wack in AMC to the search engine)saw a late rambler reble at the wreakers the other day-rusty body but good running gear(4bbl 360 , torque-flite auto with dana rear all for $1000 drive away!)a great alternative to the (boring)chev/holden, ford V8 clones.
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Gez
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Posted: Thu Jul 08, 2020 6:25 pm    Post subject: AMC 290

Thanks for the info Brootal. I'm heading up to Sydney with the car trailer this weekend and I will grab it.

Now that I have got this far, it's got no trans. What's good to bolt onto it? What did they come out with?

Gez.
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Brootal
1000RPM



Joined: 11 Jun 2021
Posts: 1287
Location: Sydney, Australia

Posted: Fri Jul 09, 2020 8:59 am    Post subject: Re: AMC 290

Gez wrote:
Thanks for the info Brootal. I'm heading up to Sydney with the car trailer this weekend and I will grab it.

Now that I have got this far, it's got no trans. What's good to bolt onto it? What did they come out with?

Gez.


Excellent.

One problem with the 290s was that they only ran a crapola Borg Warner "Flash-O-Matic" auto. Put any sort of horsepower through it and it'll be history.

There is an AMC specific 904 Torqueflite which would be my choice if I had one. I've got a TH400 (also AMC specific), but it's really too big, but it came along at the right time. It did require a bit of stuffing around to get it to fit.

I don't think it's too hard to setup, just need a bush machined up as the hole in the back of the crank is different to the torque converter shaft. But hey, it's a Hot Rod, so that shouldn't be a problem.
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buickroadster
Rookie


Joined: 26 May 2021
Posts: 60
Location: sydney australia

Posted: Sat Jul 10, 2020 4:26 pm    Post subject:

i've just adapted a muncie 4-speed behind the 360(about $100 worth of machining)so any gm box is no problem, but you must have the AMC bellhousing and flywheel.if your coming up to sydney, give me a ring on 0413802973 and i'll show you the 360 AMC in situ in the '39 ford's engine bay.
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Gez
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Posted: Tue Jul 13, 2020 7:10 pm    Post subject: AMC 290

Thanks for the info Gents. I'll see how I go with it all now It turns out I didn't have the room for the motor this trip, but it's still there for me. It also turns out that there is two of them. Brootal, after reading your resonse above, I had a look for the alloy front cover. What do you know, neither had them. Oh well, between the two of them, I'm sure I have a good runner.

Buickroadster. Unfortunately I didn't see your response until I've now returned to Melbourne, so maybe I'll take up your visit offer next time.

Thanks again guys.

Gez.
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