I am planning on building my 1972 400 for my '72 Torino. I have been looking at Tim Meyer's parts. He offers a piston for stock heads that produces about 9.4:1 compression with a .030 overbore. He also offeres a piston that makes 9.43:1 with Aussie heads and a .030 overbore.
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I know the Aussie heads are closed chamber while my stock 400 heads are open chamber. I was initially looking at getting some Aussie heads but Meyer has none in stock. If the compression is pretty much the same between stock and Aussie heads, is there any real advantage to running the closed chamber heads? Is it really worthe the extra coin?
I am only planning on building a street only engine with lots of torque and moderate horsepower levels.
Any advice appreciated.
Untitled Document
I know the Aussie heads are closed chamber while my stock 400 heads are open chamber. I was initially looking at getting some Aussie heads but Meyer has none in stock. If the compression is pretty much the same between stock and Aussie heads, is there any real advantage to running the closed chamber heads? Is it really worthe the extra coin?
I am only planning on building a street only engine with lots of torque and moderate horsepower levels.
Any advice appreciated.