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Author Topic: CB 750 SOHC to DOHC swap  (Read 378 times)

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Offline olasek18_18@o2.pl

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CB 750 SOHC to DOHC swap
« on: October 11, 2018, 05:20:44 am »
Hello, did someone try to put DOHC motor from CB 750K 1979-1982 to CB750SOHC 1969-1978 Frame? is it possible?

Offline beemerbum

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Re: CB 750 SOHC to DOHC swap
« Reply #1 on: October 11, 2018, 09:42:34 am »
Why would you?

Offline lrutt

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Re: CB 750 SOHC to DOHC swap
« Reply #2 on: October 11, 2018, 10:34:02 am »
Why would you?

Kinda what I was thinkin
06 Harley Sporster 1200C, 06 Triumph Scrambler, 01 Ducati Chromo 900, 01 Honda XR650L, 94 Harley Heritage, 88 Honda Hawk GT, 84 Yamaha Virago 1000, 78 Honda 750K w/sidecar, 77 Moto Guzzi Lemans 850, 76 Honda CB750K, 73 Norton 850, 73 Honda Z50, 70 & 65 Honda Trail 90, 70 & 71 Triumph 650s, 65 Honda 305 Dream, 81 Honda 70 Passport, 70 Suzuki T250II, 71 Yamaha 360 RT1B, 77 BMW R75/7, 75 Honda CB550K, 70 Honda CT70

Offline Don R

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Re: CB 750 SOHC to DOHC swap
« Reply #3 on: October 11, 2018, 10:52:50 am »
 The 750 motor mounts are the same, at least for a few years. I'm unsure about the height. We usually prefer to go the other way, putting a sohc into a newer frame. The reason we're here is we think the single cam engine is better.
If the things you own end up owning you, it's better to be owned by some cool things.

Offline beemerbum

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Re: CB 750 SOHC to DOHC swap
« Reply #4 on: October 11, 2018, 01:20:33 pm »
Its the appearance of the SOHC motor that is so appealing. The DOHC looks just like any other UJM

Offline Stev-o

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Re: CB 750 SOHC to DOHC swap
« Reply #5 on: October 11, 2018, 03:38:54 pm »
'74 "Big Bang" Honda 750K [836].....'71 Honda 750K project.....'76 Honda 550F.....K3 Park Racer.....K5 Fiddy Dolla Special!......CB500 Fiddy Dolla Special too!!............plus plus plus.........

Offline olasek18_18@o2.pl

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Re: CB 750 SOHC to DOHC swap
« Reply #6 on: October 12, 2018, 02:16:16 am »
Thank you, convinced me! :)

Offline Henning

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Re: CB 750 SOHC to DOHC swap
« Reply #7 on: October 12, 2018, 07:08:31 am »
Its the appearance of the SOHC motor that is so appealing. The DOHC looks just like any other UJM
Ha ha, I always thought it was because the SOHC engine is rock solid and the DOHC is rubbish, but I suppose that's right. I need to look on the bright side next time I need to set the tappets or change the plugs.
71 or thereabouts 750 K1 - this one should have been put down

 

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