hello,

 

I'm hear again asking more questions about the k motors (I'm quikly learning!! lol)

 

I'm building up my 5k Motor,

 

I have three heads at the moment

 

One has 19 stamped on it with an "A" with a circle round it stamped on it and notches/lumps under spark plug 1 and 4

 

The second one has 1 stamped on it

 

and the third has 73 stamped on it

 

Ive attached some photos of the heads

 

 

hello,

 

I'm hear again asking more questions about the k motors (I'm quikly learning!! lol)

 

I'm building up my 5k Motor,

 

I have three heads at the moment and i need to know what there off of:

 

One has 19 stamped on it with an "A" with a circle round it stamped on it and notches/lumps under spark plug 1 and 4

 

The second one has 1 stamped on it

 

and the third has 73 stamped on it

 

Ive attached some photos of the heads

Me again! :y:

 

The lug under 1 & 4 would indicate that its a dished piston motor. Most likely a 5k in Aus, but maybe a 4ku head.

my 5K head has a 1 on it aswel. From a dished piston 5K.

Cheers guys, your help is greatly appreciated!

Cheers guys, your help is greatly appreciated!

There's a head identification page in the FAQ's. Here is the link!

 

K Motor Heads

I'd take those numbers in the FAQ with a grain of salt. That list is all over the place.

 

The only ones that really mean anything are the early bigport ones with an actual part number on them.

 

Basically you have 3 head types:

 

early k/3k bigport: with the 22010 or 24010 prefix - welschplug on back

normal smallport 3k/4k

4k/5k dished piston heads: have those lumps under 1 and 4 plug holes. - small combustion chambers

My 5K doesnt have those lumps under 1 & 4. but its a dished piston head.

My 5K doesnt have those lumps under 1 & 4. but its a dished piston head.

 

Did you CC it? The original may have been cooked and replaced at some stage in its' life with whatever was easily and cheaply available.

Edited May 16, 200917 yr by Felix

Just went out and checked it. and it turns out it actually does have the lumps underneath 1&4.

 

Was lookin at the wrong head last time :)