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Was waiting for your input in this thread. Thanks for the info, two of the things I am still debating are cam specs, and how much to shave off the head.
To be honest, even a 10.5:1 is plenty enough for my hp goals. Will do more research before start chopping stuff from the engine.
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The only thing I will get from the 01-05 VVT block is the cylinder head valve cover components and oil pan with corresponding main bearing support plate.
Then build a high compression engine with a 94.5-95 block or Mazdaspeed block
http://mazdaroadster.net/attachment....&d=15031534444
What are the differences between blocks?
If you want to turbo the 94.5-95 or mazdaspeed block you have a coolant and oil source already built in under the exhaust manifold