400 small register crank strength
Getting ready to build a 78' 400 for a customer and it has the lighter, thin counterweight, small crank register crank in it. Has anyone had any issues with these cranks in a performance application? The engine will have out of the box KRE D port heads and a hyd. flat tappet cam, probably be around 390-400 Hp range. I have other earlier N cranks but would like to stick with this crank since it's std/std., if it's strong enough.
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62' Lemans, Nostalgia Super Stock, 541 CI, IA2 block, billet 4.5" crank, Ross, Wide port Edelbrocks, Gustram intake, 2 4150 style BLP carbs, 2.10 Turbo 400, 9" w/4:30 gears, 8.76 @153, 3100lbs
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