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Old 21st September 2010, 07:47   #1
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Default Where can i buy an alloy cylinder for the Bullet 500?

Where can I buy an alloy cylinder for a 500 Bullet? I just cannot seem to find one

Also Samarat products

Near Agra would be nice
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Old 21st September 2010, 08:48   #2
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I'm looking for the same, preferably in Mumbai. Thanks.
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Old 21st September 2010, 08:52   #3
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CI or the AVL cylinder?
Try Karol Bagh, if you are in Delhi.
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Old 21st September 2010, 09:32   #4
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for the cast iron engine.
Also want a set of 19" front and rear stainless spokes

Got a phone or better yet an email for Karol Bagh?
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Old 21st September 2010, 09:57   #5
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You mean alloy cylinder for the CI?
Samrat makes them but afaik they don't sell them here.

But why is it that you need to go for alloy cylinder?
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Old 21st September 2010, 10:41   #6
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Yes an alloy cylinder for the cast iron, old style 500 engine.

They offer far better cooling over the CI version, and therefore preferred in high compression applications (inherently higher heat). Even at stock compression, you will find that the alloy cylinder cools far better.

The quality of the Samarat part is dodgy at best. I intend to bore the new cylinder using torque plates and properly fit my piston thereby curing any out of round condition. It is also necessary to square the bore with both ends of the cylinder and face the spigot to insure proper sealing at the head. This is not back alley work, and all these procedures require high precision machining.
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Old 21st September 2010, 11:16   #7
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Okay i agree that it provides more cooling. But even a higher compression application doesn't warrant alloy block unless you're going all out on the engine.

If i were you i'd keep the alloy block low near the bottom of the list of things to do. It is nice but it is not cheap (from Hitchcocks atleast).

I understand the inner spigot sealing, but why an alloy block for that?
I did that in my CI350 block&head myself in my room using lots of valve grinding paste, stamina and patience. After i got the head and block cut by 2mm (iirc) to increase compression I lapped the inner spigot and the outer surface of the block with the head. Enigne ran perfectly without any gasket but to arrest the oil leak around the pushrod tubes, while the engine got hot, i used a paper thin copper gasket. There's an old thread here about the mods done on my Bullet. If you have access to high precision machinery it would be all the more better.

All the best with your mods, but rethink about alloy cylinder.
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Old 21st September 2010, 11:39   #8
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I suggest that anything that one can do to mitigate overheating is a good thing. There is no question that increased compression will increase heat, and the ability of the CI cylinder to shed heat in high ambient temperatures with the stock 6.5 compression is strained to say the least. As you are no doubt aware, heat related piston problems are not uncommon in a RE.

It is no small coincidence that alloy cylinders are featured in virtually every modern motorcycle whether air or oil cooled. There is a better product available and I intend to use it.

In my case static compression is 9.5 and dynamic compression is 7 with a cranking pressure of 133 psi. Given ambient temperatures in the high 30's using the cast cylinder is asking for a piston problem.

The precision machine work on the cylinder is to rectify what I and others perceive as manufacturing inaccuracies in production. The spigot issue is simply one of the problematic areas.

Now back to my question - where to buy these bits
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Old 23rd September 2010, 09:11   #9
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I really doubt about the availability of CI 500 alloy cylinders in India.
Actually there is something people do to reduce the sound of the AVL engine: mount the CI head and cylinder.
You could do the other way around: mount the AVL 500 head and Cylinder on the CI casing. And this should be readily available.
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Old 23rd September 2010, 10:47   #10
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These alloy CI cylinders are made in India and in fact offered on Ebay USA from an Indian supplier. Unfortunately it is not listed now.

Surely there are available somewhere in India and it would be nice to hear from someone that knows.
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Old 23rd September 2010, 10:54   #11
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The Ebay USA seller of the CI alloy cylinder is tradesparesauto and my buddy managed to buy one and have it shipped to the USA.
He managed to quote me a price via registered post, however the sale never goes any further. Any experience with this guy?
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Old 24th September 2010, 09:57   #12
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I got this from another forum. There is a Mr Yajat Kumar in Delhi who sells these alloy barrels. His no is: +919312433859. I called him and he's quoting Rs 3500.

If you do go ahead with this fellow, could you please let me know about the quality of his product? Thanks and all the best
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Old 26th September 2010, 15:44   #13
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Soni Motors in Delhi just quoted me 4200
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Old 4th November 2010, 14:39   #14
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Came across this, so thought i'd update if anyone is looking.

eBay India: ROYAL ENFIELD 500CC ALLOY BARREL (item 370449904075 end time 25-Nov-2010 11:23:31 IST)

eBay India: ROYAL ENFIELD 350CC ALLOY CYLINDER KIT &H.C. PISTON KIT (item 370453078453 end time 14-Nov-2010 11:55:51 IST)

Seller: Tradesparesauto
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Old 19th November 2010, 09:39   #15
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this is the guy that never replies to my emails no matter how hard I try to buy his product
Makes me wonder
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