Getting ready to start ordering parts 1st of next week to complete the build if. Still have not made my mind up on what cu in yet,I have a choice of 528 4.15 crank, 540 4.25 crank,558 4.375 crank, 572 4.50 crank. Would a low deck 572 with the shorter rod,shorter pistons which should = much lighter bob weight with better rod geometry be more efficient than a RB with longer rod,s and pistons and a much heavier bob weight?
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