Sorry to hear about your license, it happens to the best of us.

If you feel you can buy a GX or H89/H75 head and get it reconditioned and flowing better, then by all means go for it. There are a couple on eBay now actually, one over priced and one quite reasonable.

I haven’t even put a price on it (as I am asking for offers) so I don’t see why you feel you need to justify your other options, it’s quite okay to keep those thoughts inside your mind, especially this confusing piece;

Quote:

Try and get a second hand head recoed!

Anyway the head CC'd in at 31cc, two more millilitres than that of a H89 so when people call these the low-comp heads, it can hardly be considered as a low comp head as there is only a 2cc difference. Slightly lower comp I suppose?

2cc is equal to approx half a compression ratio eg; if 29cc works out to 9 to 1 ratio,. then 31cc would have 8.5 to 1 comp .cheers

Hey thanks bige.

Anyway this baby is no longer for sale. Back to the cupboard. Thanks for the interest, at least we now know the volumes of the H75 combustion chambers.

I was hoping for some decent offers but they're all shockers at the moment, not one over $200.00 Oh, fark. I don't know whether to laugh or cry!

Cheers fellas.

Chris