for 300 guys

[Bitsa (Ralph Wright - RIP)]

Hi you ko lads as I read and learn I get it that the ko,s did not have front and rear chain tunnel bolts am I right?If so look at this if I AM WRONG TAKE NO NOTICE.
www.ebay.de/itm/honda-cb-750-four-motor-zylinderkopf-HM300-K0-/231415711021?pt=DE_Motorradteile&hash=item35e173852d#ht_2503wt_1362
This advert if wrong gets my goat up
Cheers
Bitsa

[Trigger]

Not a bad one but, what will the bid be in the end ?

[steff750]

  yes bitsa you are right ,but that is a KO head be it a later one , the front bolt was added about half way through production of the k0 or there abouts mid 1970 i would go and check but I'm still pmsl at the exhausts

[UK Pete]

Early k0 heads are very similar to the sandcast, infact late sandcast and early k0 heads are the same, as steff says this is late k0 or k1 as it has the extra bolt hole
pete

[Trigger]

If it sells at 99 euro, it is a good head for a K0.

[Bitsa (Ralph Wright - RIP)]

Trig
At the end it will go for more than 99 euro then
Cheers
Bitsa

[Bitsa (Ralph Wright - RIP)]

It did not sell well I never, must be loads of them around then
Cheers
Bitsa

[UK Pete]

On closer inspection it appears to be k3 onwards certainly no earlier than 73, which means yes there are loads of them about
pete

[Bitsa (Ralph Wright - RIP)]

Thanks Pete now you know why I high lighted this, people claiming one thing and its not annoys me bad
Cheers
Bitsa

[UK Pete]

I know what you mean, people think by saying k0 or sandcast it will attract more money, it certainly gets more page veiws
pete

[Trigger]

Has a 300 stamp and can not see it being a K3 but, i would have to see the side.

[UK Pete]

This is a k0 head
all heads up until some point through k2 production have the 5 fin posts that come through on the outer edge underside of the  bottom fin as you can see on here , then they went to a more solid non round 3 post style between the fins up till 1978



This is the one that did not sell, see no pertruding fin posts on the bottom, plus you can see where it has been clearly mated up with the barrells that have all the rubber orings which were after 1972

[Trigger]

I know about the 3 and 5 fin posts. And that is why i said i would need to see the side, as i have a few heads in stock that have 5 fin posts but, they are not protruding. This still is confusing why the head as 300 stamped on it. 

[UK Pete]

You have a good point there trig, why the 300 code ?,like you say it needs to be viewed from the side to be sure, anyway one thing is for sure it aint worth much as people jump at the chance of a k0 head, i have one of these heads with exactly the same 300 no and markings with a solid 3 fin spacer f== knows what it came off but i do know up till some point of k2 production they have the 5 fin spacers

[Trigger]

Pete, i have had a few people tell me that a 3 fin spacer is K3 onwards but, i know of a few customers that have K2's (UK from new) that have 3 fin spacers. And a few more that have K2's with 5. I have also worked on a German 750K1 that has 3 and that engine had never been apart before i got my grubby mitts on it.
Was Honda Casting it own heads or where they farmed out?