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Bart,
Well, if I can't even remember what year it was for Chili Bowl, I'd be pressed to give an accurate time on the motor. Took it apart quite a bit.
Bearings were the wear items, particularly that #5. Don't know whether it was too much clearance in the mains as they wore that kept enough flow getting to the rods or whether it was simply a design issue. Perhaps Synergy has a rigid enough block allowing tighter clearances similar to motorcycle engines. We engineered a "floating" front engine mount so it wasn't frame / car flex transferring into the engine.
Had both a long stroke and short stroke variation. Long stroke quit at about 10,300. Had amazing low end. Very driver friendly. Short stroke peaked at 11,200, torque curve not very flat. It was the short stroke motor that lost the bearing at Moberly. Moberly is fast and allowed wide open all the way around so the short stroke motor was ok there...until it wasn't.
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