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Author Topic: two cylinder transplant  (Read 814 times)

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Offline Dakotarider

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two cylinder transplant
« on: January 10, 2017, 01:23:30 PM »
How difficult would it be to transplant a 72 350 two cylinder into a 73 350 four cylinder bike?
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Offline Duanob

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Re: two cylinder transplant
« Reply #1 on: January 10, 2017, 02:09:25 PM »
With enough money and time you can do anything you want but the question is why?
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Offline jonda500

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Re: two cylinder transplant
« Reply #2 on: January 10, 2017, 02:29:33 PM »
According to a thread in here some time ago, the very first 500 engine was fitted to a 450 twin frame.. so maybe not ridiculously hard?
John
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A starter clutch thread:
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Offline Dakotarider

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Re: two cylinder transplant
« Reply #3 on: January 11, 2017, 08:20:15 AM »
Rather than rebuild my lower end bearing issue, maybe get a cheap donor two cylinder and install.
But looking at ebay last night, transmission parts look cheap.
I like my smooth four cylinder better anyway, so nevermind the swap.
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Offline BomberMann650

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Re: two cylinder transplant
« Reply #4 on: January 11, 2017, 12:08:35 PM »
You are likely better off rebuilding what you have vs rollin the dice on a donor motor.

Both of my "cheap donor motors" were rebuild candidates in one way or another.  I've found (slightly) bent valves and a broken piston ring, in addition to wore out rocker shaft bores.  Would they have run before teardown?  Maybe.  At least until something seized.
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