Yeah this is a much better looking chamber than the stock head has, not sure if it will make a noticeable difference in how the engine runs or not, but if it boosts compression a tad and makes the mixer burn more efficient then that should translate into little extra power at least on the bottom end and or for pulling hills, seen Duanes add in his parts list and just had to see one up close and try it out.
Sounds good Tom, cant wait to hear your results.
I would love to see actual numbers from a compression gauge, if you have one, could you PLEASE post for us??? I've heard these motors can run anywhere from 95 to as much as 125 PSI from the factory (depending on break-in, ring seal, etc.).
Dave,
Why did they machine that ring back into he head? For me, the head is junk because of the ring. It will leak and warp with no way to stop it.
After reading this thread. I checked the head on my latest engine from ebay and it seems the head HAS had some extra machining done compared to the older motors. I like the squish band and it actually looks like it will work as intended to improve burn. I wonder if this is why the last four or five kits I've built have seemed so much snappier...the chamber in my head looks like the Dax head above.
I've never had any leaking ssues with any of the stock heads, if the heads are torqued down evenly and with correct torque they work great and do not have leak issues , many of us here have hundreds and even thousands of miles on these stock heqds with no leak issues.
Didnt do anything to mine, just bolted it on, my bike runs good with this head but compression is a bit low for my taste, once I get my puch head on this engine I'll shave the da. Head down a few .001's and put it on one of my other engines that jas the old style head on it.Their was a noticeable difference with this head. I would go as far as to say that it out preforms my first Jen Manic head for half the price. Hear is a pic of the head after I polished the dome.
