Cr nk is billet , counterbalanced , full oil press. to rods (80 lbs.) , steel rods , .040 crankflex on #2/3 cylinder at 7500 rpm .. 2 ball brgs. at frt. of crank for thrust , 1 roller brg. on rear .. Welded up cam for .312 lift ,( won't flow more , 300 degree duration seat to seat , intake closes at 87 degrees after BDC .