I need head now.

You mean a cylinder don't you? Whizzer H head? The cylinder is threaded not the head....correct?
 
Only advice I can give you is check with Quentin or Jay, or see if there is a cruzzer head that's compatible.
 
If it is that hard to find a good one, you should repair the one with the failed threads.

We fix pulled helicoil inserts all the time by installing slightly larger solid steel inserts.
 
No problem, come to CA, you can get great head here. Will flush your cooling fluid out too.
 
Hi, early H all had 1/4 inch headbolts, ALL J's had 5/16 headbolts, there may be other small differences. Whizzer recommended drilling the H to 5/16 as they were blowing head gaskets. I have a good H head, no broken fins, I'll have to see. I m not sure what it is worth.
Hope this helps,
Mike
 
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