gpz 1100 head

ok guys the gpz 1100 83-84 head has better flow than a j head but what about the 81-82gpz head is it just a j head?

81-82 GPZ heads are same as a J model.The 83- 84 GPZ have the "bathtub" in the combustion chamber.

I have read that some of the 1100 shaft motors use the same head (silver instead of black though), so I looked up the pistons on Kawasaki.com figuring that if they used the same pistons then more than likely the head was the same.

Here's what I found:

ZN1100-B1 (LTD Shaft) (1984)
ZN1100-B2 (LTD Shaft) (1985)
ZX1100-A1 (GPz) (1983)
ZX1100-A2 (GPz) (1984)

So it looks like the 84-85 ZN1100 uses the same head as the 83-84 GPz1100.

For what it's worth

here is a pic of a supposed 83 doesn't look like a bathtub type or am i looking at it wrong?

83-84 GPz1100

is there no pic or is it just my comp?if there isn't a pic would you say the one i am showing is one? or not?

i was watching that one also.
price got to high for me.
it is not a bathtub gpz head.
it is most likely a spectra head.
still out flows a kz head but it's not a gpz.

School Teacher wrote:

is there no pic or is it just my comp?if there isn't a pic would you say the one i am showing is one? or not?

You can't see the pic in my post?
Is there anyone else that can't see it?
Or maybe I should say, is there anyone else besides me that can see it?

Nope, the pic you posted is not an 83-84 GPz1100 head.

I copied the pic to my computer so I can upload it to KZR instead of linking it.

Here it is (just to prove to myself that I've not gone totally round the bend).

there was only the red x for me also steell.

secound one came out good.

Positively weird, first pic was linked from cyclemadness and it shows up every time I look at this thread, but apparently no one else can see it. Second pic is uploaded to KZR and works.

Note to self, don't link pics from CM

thanks guys. does the gpz head(bathtub style) drop your compression more than 2 points? like 2.5 or so?

i picked up some 12.5 to 1 pistons and want the bigger drop to make it more streetable. thanks