« previous next »
Pages: [1]   Go Down

Author Topic: swapping parts from a 1978 t a 1971 K1 750, will pipes work?  (Read 1180 times)

0 Members and 1 Guest are viewing this topic.

Texwing

  • Guest
swapping parts from a 1978 t a 1971 K1 750, will pipes work?
« on: January 28, 2009, 07:25:14 AM »
Hello to all, I have not been around the forum for a while (working on another project).  I have a 1971 cb750 that I am slowly getting back to original.  I have spotted a really nice 1978 cb750 with good pipes, will they fit, and look original? I know the stampings will not be correct. How about the front fender?  I am considering swapping parts, and reselling the 1978, although yes I hate to mess with a good  78, but I am looking for a better way to get original pipes without paying $1200 bucks on ebay... thanks in advance.
Logged

Offline bryanj

  • Really Old Timer ...
  • *******
  • Posts: 14,529
  • CB500 Number 1000036
Re: swapping parts from a 1978 t a 1971 K1 750, will pipes work?
« Reply #1 on: January 28, 2009, 07:42:47 AM »
Not straight on as the head fitting is different, but can be altered, and the mountings at the rear are different
Logged
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

Remember "Its always in the last place you look" COURSE IT IS YOU STOP LOOKIN THEN!

Offline Duke McDukiedook

  • Space Force 6 Star General
  • Really Old Timer ...
  • *******
  • Posts: 12,688
  • Wish? Did somebody say wish?
Re: swapping parts from a 1978 t a 1971 K1 750, will pipes work?
« Reply #2 on: January 28, 2009, 08:56:38 AM »
Yeah, I think earlier K's (maybe to K6) had the spigot-type flange and the later models had the straight flange?
Logged
"Well, Mr. Carpetbagger. We got somethin' in this territory called the Missouri boat ride."   Josey Wales

"It's Baltimore, gentlemen. The gods will not save you." Ervin Burrell

CB750 K3 crat | (2) 1986 VFR750F

Offline dusterdude

  • Really Old Timer ...
  • *******
  • Posts: 8,527
Re: swapping parts from a 1978 t a 1971 K1 750, will pipes work?
« Reply #3 on: January 28, 2009, 09:37:04 AM »
remove the spigots,install studs,put in new gaskets and you`re good to go.
Logged
mark
1972 k1 750
1949 fl panhead
1 1/2 gl1100 goldwings
1998 cbr600 f3

Offline Industrial Cafe

  • Like a well oiled
  • Really Old Timer ...
  • *******
  • Posts: 6,372
  • [Brian] I've got something to say about that!
    • Undead Asphalt
Re: swapping parts from a 1978 t a 1971 K1 750, will pipes work?
« Reply #4 on: February 26, 2009, 07:54:09 PM »
I hope that works, I have a yoshimura 4-1 for my k1 bike and a K8 motor coming from a member on the forum.
I love the way it sounds and I'd hate to have to but another header.
Logged
everything I say is pure speculation and
I have no idea what I'm talking about  ._.

                                    Marla              .:71CB750:.CAFE

Offline GammaFlat

  • Master
  • *****
  • Posts: 1,565
  • humanitas, qualitas, quantitas and velocitas
Re: swapping parts from a 1978 t a 1971 K1 750, will pipes work?
« Reply #5 on: February 26, 2009, 08:35:47 PM »
Maybe the pipes are not as expensive as you think.  I think you can get HM341's for less than 900.  If you need a home for those 77/78 HM401s, you can talk to me :) 

Here's where you can get the pipes: http://www.hondaparts-direct.com/fiche_section_detail.asp?section=126093&category=Motorcycles&make=Honda&year=1972&fveh=3000

Granted, that's just the pipes but most of the other parts can be salvaged cheaply elsewhere (like the shields, rubbers, etc.). 

The way they connect to the head is similar enough so that worst case you need to install studs on the older bike in place of the flange/screw arrangement.  The rear connections (in my mind) would be a nightmare... probably mostly because it doesn't look right in my mind's eye... 77 pipes on a pre-77.   yuck!
Logged
K6
85 Goldwing
Pages: [1]   Go Up
« previous next »