I don’t think there’s ever a power level where both plates are not a plus in keeping the motors own torque production from acting on the structure of the block.
I would say that for the best / ultimate stock block longevity that a motor making over 550 ft lbs is a good candidate for using two plates.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!
1) 1940s 100% silver 4 cup tea server set.
Two dry rotted 14 x 10 Micky Thompson slicks.
1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.
Education is what your left with once you forget things!
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