Preparing a HYDROLIC! CY engine for boost

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Um, you have to  .
I blocked the drain in the head with an aluminum plug.
I blocked the coolant hole on the block with a chunck of rubber.
I'm pushing 30psi of boost, and it holding just fine.

[zukgod1]

I've been there as well.

Used a Hydro head on a solid block.

I welded up the coolant passage in the block and welded the hole in the head up.

Drilled the head and block for the extra AAZ coolant holes.

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The AAZ head has the smaller steam holes already and its the block that you drill out.

Thats what I did.