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Old 04-14-2016, 04:28 PM   #2
Ski in NC
Technical Guru
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City: Wilmington, NC
Country: USA
Vessel Name: Louisa
Vessel Model: Custom Built 38
Join Date: Jan 2014
Posts: 5,455
SAE flywheel housings are standardized. Sort of. Usually bolt circles are per spec, but flywheel faces are often modified for clutches or torque converters. No way to really tell til you get the engine and measure things.

I'd use 1/2" plate to adapt to the gear.

Usually no alignment pins, things are kept centered by pilot bore shoulder on plate. You need a big lathe to cut that, or a mill with a rotary table.

Bolt circles and crank CL are concentric.
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