Slant Six Build Ideas

John Martin said

I never said I was building the engine to the converter. I do realize that the way I’m building the engine will not be much over the original 110hp it was rated at. So with that being said, a high stall converter will take too much power to turn, before anything gets moving.

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IMO, you're lookin at this wrong. You should build the engine for TORQUE. That's where the 225's strong point is. It's ridiculously long stroke for an inline six lends it to some really great low end torque potential. I would try to design the build to have its maximum torque in the 2500 RPM range.

Also, you should keep that same thing in mind choosing a converter. Remember that converter technology is light years from where it was just ten years ago. you can have a converter that'll flash to 5,000 RPM, yet be tight enough to drive on the street everyday without slippage or extra heat buildup and get decent mileage, but flash to 5K when you hem it up for a launch.

Of course, we know you don't need or want a 5K converter. If it was ME, I would look at something like a tight "for a slant six" 3K converter. One that will flash to a MAXIMUM of 3,000 RPM on a hard launch. That's "only" about 1K RPM higher than a stock high stall and with a modern style converter would work very well for what you are wanting to do.

Have you made decisions regrading camshaft or gearing?